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Cheap flights from Ottawa to Illinois from C$ 273

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
YOW — ORD
15 May — 22 May1
1 adult
Wed 15/5
Wed 22/5

How far in advance should I book a flight from Ottawa to Illinois?

Users have found that booking a flight from Ottawa to Illinois at least 56 days early can save you up to 109% on average compared to booking a flight this week. If booking 56 days before your flight isn’t an option for you, users have found flights from Ottawa to Illinois for as little as C$ 492 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 811 for flights departing within the next 3 days.

What is the cheapest month to fly from Ottawa to Illinois?

April is one of the best times of the year to fly to Illinois from Ottawa. Prices for April average C$ 573 per person but you can even find prices for as low as C$ 334. The most expensive prices can be found in the month of November. Opting for a April flight can save you 21% on your journey compared to booking in November

When is the cheapest time to fly from Ottawa to Illinois (YOW - IL)?

When flying from Ottawa to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Air Canada flights from Ottawa to Illinois

Explore cheap flight options specifically provided by Air Canada for the route between Ottawa and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 437,143 searches. Data last updated 10 May 2024.
Find some of the cheapest Air Canada flights travelling from Ottawa to Illinois. Make sure to check back often as deals are often changing.
Sat 29/66:03 p.m.YOW - ORD
1 stop6h 14mAir Canada
Sun 30/66:00 a.m.ORD - YOW
1 stop6h 13mAir Canada
Deal found 9/5C$ 514
Wed 14/85:55 a.m.YOW - ORD
1 stop5h 06mAir Canada
Sat 17/86:34 p.m.ORD - YOW
Nonstop2h 18mAir Canada
Deal found 10/5C$ 724
Thu 30/56:38 a.m.YOW - ORD
Nonstop2h 22mAir Canada
Mon 3/66:00 p.m.ORD - YOW
1 stop6h 32mAir Canada
Deal found 9/5C$ 731
Thu 20/69:20 a.m.YOW - ORD
1 stop6h 34mAir Canada
Sun 23/66:00 a.m.ORD - YOW
1 stop6h 13mAir Canada
Deal found 9/5C$ 737
Thu 30/59:20 a.m.YOW - ORD
1 stop5h 42mAir Canada
Mon 3/66:00 p.m.ORD - YOW
1 stop6h 32mAir Canada
Deal found 9/5C$ 739
Fri 21/67:10 a.m.YOW - ORD
1 stop6h 44mAir Canada
Mon 24/66:00 a.m.ORD - YOW
1 stop6h 13mAir Canada
Deal found 9/5C$ 746
Fri 30/811:25 a.m.YOW - ORD
Nonstop2h 17mAir Canada
Mon 2/97:25 a.m.ORD - YOW
Nonstop2h 08mAir Canada
Deal found 9/5C$ 763
Thu 20/65:26 p.m.YOW - ORD
Nonstop2h 25mAir Canada
Sun 23/67:10 a.m.ORD - YOW
1 stop5h 03mAir Canada
Deal found 9/5C$ 813
Thu 15/86:30 a.m.YOW - ORD
Nonstop2h 22mAir Canada
Sun 18/86:00 a.m.ORD - YOW
1 stop6h 13mAir Canada
Deal found 10/5C$ 816

Cheap United Airlines flights from Ottawa to Illinois

Explore cheap flight options specifically provided by United Airlines for the route between Ottawa and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 437,143 searches. Data last updated 10 May 2024.
Some of the lowest-priced United Airlines flights we've found at this time heading from Ottawa to Illinois. Ensure the flight price, dates, time, and airline match your criteria before you book.
Fri 7/66:38 a.m.YOW - ORD
Nonstop2h 22mUnited Airlines
Wed 12/66:30 p.m.ORD - YOW
Nonstop2h 18mUnited Airlines
Deal found 9/5C$ 717
Thu 19/96:30 a.m.YOW - ORD
Nonstop2h 28mUnited Airlines
Mon 23/97:25 a.m.ORD - YOW
Nonstop2h 08mUnited Airlines
Deal found 9/5C$ 721
Tue 6/87:30 p.m.YOW - ORD
1 stop4h 45mUnited Airlines
Thu 8/86:34 p.m.ORD - YOW
Nonstop2h 18mUnited Airlines
Deal found 9/5C$ 748
Sat 28/96:05 a.m.YOW - ORD
1 stop6h 59mUnited Airlines
Wed 2/1010:35 a.m.ORD - YOW
2 stops10h 31mUnited Airlines
Deal found 10/5C$ 769
Fri 20/95:59 p.m.YOW - ORD
1 stop6h 29mUnited Airlines
Mon 23/96:20 p.m.ORD - YOW
2 stops17h 22mUnited Airlines
Deal found 9/5C$ 780
Tue 2/76:05 a.m.YOW - ORD
2 stops13h 30mUnited Airlines
Sat 6/79:28 p.m.ORD - YOW
1 stop25h 31mUnited Airlines
Deal found 9/5C$ 790
Fri 21/66:38 a.m.YOW - ORD
Nonstop2h 22mUnited Airlines
Mon 24/66:30 p.m.ORD - YOW
Nonstop2h 18mUnited Airlines
Deal found 10/5C$ 805
Sat 29/65:30 p.m.YOW - ORD
Nonstop2h 25mUnited Airlines
Sun 30/66:34 p.m.ORD - YOW
Nonstop2h 18mUnited Airlines
Deal found 9/5C$ 848
Thu 15/86:30 a.m.YOW - ORD
Nonstop2h 22mUnited Airlines
Sat 17/86:34 p.m.ORD - YOW
Nonstop2h 18mUnited Airlines
Deal found 10/5C$ 850

Cheap Ottawa to Illinois flights in May & June 2024

Find cheap flight options from Ottawa to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 437,143 searches. Prices were last updated on 10 May 2024.
Check out some of the best flight deals from Ottawa to Illinois in 2024. Check back regularly for other flight deals.
Fri 31/51:15 p.m.YOW - MDW
1 stop4h 02mPorter Airlines
Mon 3/611:25 a.m.MDW - YOW
1 stop5h 49mPorter Airlines
Deal found 9/5C$ 470
Thu 30/55:10 p.m.YOW - MDW
1 stop5h 27mPorter Airlines
Mon 3/611:25 a.m.MDW - YOW
1 stop4h 04mPorter Airlines
Deal found 9/5C$ 473
Fri 7/63:25 p.m.YOW - ORD
2 stops17h 59mMultiple Airlines
Wed 12/68:02 p.m.ORD - YOW
1 stop14h 12mMultiple Airlines
Deal found 9/5C$ 473
Thu 6/611:30 a.m.YOW - MDW
1 stop5h 47mPorter Airlines
Mon 10/68:00 a.m.MDW - YOW
1 stop6h 29mPorter Airlines
Deal found 10/5C$ 477
Mon 17/66:55 p.m.YOW - MDW
1 stop3h 42mPorter Airlines
Sat 22/68:00 a.m.MDW - YOW
1 stop4h 49mPorter Airlines
Deal found 9/5C$ 485
Thu 20/67:10 a.m.YOW - MDW
1 stop3h 57mPorter Airlines
Sun 23/68:40 a.m.MDW - YOW
1 stop5h 04mPorter Airlines
Deal found 9/5C$ 491
Fri 24/57:10 a.m.YOW - MDW
1 stop3h 57mPorter Airlines
Mon 3/68:00 a.m.MDW - YOW
1 stop6h 29mPorter Airlines
Deal found 10/5C$ 492
Sat 8/68:35 a.m.YOW - MDW
1 stop3h 57mPorter Airlines
Sat 15/68:00 a.m.MDW - YOW
1 stop6h 14mPorter Airlines
Deal found 9/5C$ 500
Sat 29/66:03 p.m.YOW - ORD
1 stop6h 14mAir Canada
Sun 30/66:00 a.m.ORD - YOW
1 stop6h 13mAir Canada
Deal found 9/5C$ 514

Ottawa to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Ottawa and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 437,143 searches. Data last updated 10 May 2024.
Check out some of the best flight deals from Ottawa to Illinois in 2024. Check back regularly for other flight deals.
Fri 31/51:15 p.m.YOW - MDW
1 stop4h 02mPorter Airlines
Mon 3/611:25 a.m.MDW - YOW
1 stop5h 49mPorter Airlines
Deal found 9/5C$ 470
Thu 30/55:10 p.m.YOW - MDW
1 stop5h 27mPorter Airlines
Mon 3/611:25 a.m.MDW - YOW
1 stop4h 04mPorter Airlines
Deal found 9/5C$ 473
Fri 7/63:25 p.m.YOW - ORD
2 stops17h 59mMultiple Airlines
Wed 12/68:02 p.m.ORD - YOW
1 stop14h 12mMultiple Airlines
Deal found 9/5C$ 473
Thu 6/611:30 a.m.YOW - MDW
1 stop5h 47mPorter Airlines
Mon 10/68:00 a.m.MDW - YOW
1 stop6h 29mPorter Airlines
Deal found 10/5C$ 477
Mon 17/66:55 p.m.YOW - MDW
1 stop3h 42mPorter Airlines
Sat 22/68:00 a.m.MDW - YOW
1 stop4h 49mPorter Airlines
Deal found 9/5C$ 485
Thu 20/67:10 a.m.YOW - MDW
1 stop3h 57mPorter Airlines
Sun 23/68:40 a.m.MDW - YOW
1 stop5h 04mPorter Airlines
Deal found 9/5C$ 491
Fri 24/57:10 a.m.YOW - MDW
1 stop3h 57mPorter Airlines
Mon 3/68:00 a.m.MDW - YOW
1 stop6h 29mPorter Airlines
Deal found 10/5C$ 492
Sat 8/68:35 a.m.YOW - MDW
1 stop3h 57mPorter Airlines
Sat 15/68:00 a.m.MDW - YOW
1 stop6h 14mPorter Airlines
Deal found 9/5C$ 500
Sat 29/66:03 p.m.YOW - ORD
1 stop6h 14mAir Canada
Sun 30/66:00 a.m.ORD - YOW
1 stop6h 13mAir Canada
Deal found 9/5C$ 514

Direct flights to Illinois from Ottawa

Discover non-stop flight options from Ottawa to Illinois. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 437,143 searches. Data last updated 10 May 2024.
For a quicker trip, book one of these direct flights from Ottawa to Illinois. If you're looking for other options for flights from Ottawa to Illinois, make sure to update the search form at the top of page.
Fri 7/66:38 a.m.YOW - ORD
Nonstop2h 22mUnited Airlines
Wed 12/66:30 p.m.ORD - YOW
Nonstop2h 18mUnited Airlines
Deal found 9/5C$ 717
Thu 19/96:30 a.m.YOW - ORD
Nonstop2h 28mUnited Airlines
Mon 23/97:25 a.m.ORD - YOW
Nonstop2h 08mUnited Airlines
Deal found 9/5C$ 721
Wed 14/85:30 p.m.YOW - ORD
Nonstop2h 25mUnited Airlines
Sat 17/86:34 p.m.ORD - YOW
Nonstop2h 18mUnited Airlines
Deal found 10/5C$ 724
Sat 8/65:26 p.m.YOW - ORD
Nonstop2h 25mAir Canada
Sat 15/66:30 p.m.ORD - YOW
Nonstop2h 18mAir Canada
Deal found 9/5C$ 763
Fri 21/66:38 a.m.YOW - ORD
Nonstop2h 22mUnited Airlines
Mon 24/66:30 p.m.ORD - YOW
Nonstop2h 18mUnited Airlines
Deal found 10/5C$ 805
Thu 6/65:26 p.m.YOW - ORD
Nonstop2h 25mAir Canada
Thu 13/66:30 p.m.ORD - YOW
Nonstop2h 18mAir Canada
Deal found 9/5C$ 847
Sat 29/65:30 p.m.YOW - ORD
Nonstop2h 25mUnited Airlines
Sun 30/66:34 p.m.ORD - YOW
Nonstop2h 18mUnited Airlines
Deal found 9/5C$ 848
Thu 15/86:30 a.m.YOW - ORD
Nonstop2h 22mUnited Airlines
Sat 17/86:34 p.m.ORD - YOW
Nonstop2h 18mUnited Airlines
Deal found 10/5C$ 850
Mon 3/66:38 a.m.YOW - ORD
Nonstop2h 22mAir Canada
Mon 10/66:30 p.m.ORD - YOW
Nonstop2h 18mAir Canada
Deal found 9/5C$ 853

Ottawa to Illinois flights leaving soon

Find last-minute flight options from Ottawa to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 437,143 searches. Data last updated 10 May 2024.
Check out these flights departing soon from Ottawa to Illinois. Users should examine the flight details to ensure there are no surprises.
Wed 15/54:15 p.m.YOW - ORD
3 stops26h 25mMultiple Airlines
Tue 21/59:35 a.m.ORD - YOW
2 stops25h 07mMultiple Airlines
Deal found 9/5C$ 696
Wed 15/57:10 a.m.YOW - MDW
1 stop3h 57mPorter Airlines
Fri 17/511:05 a.m.MDW - YOW
1 stop6h 09mPorter Airlines
Deal found 9/5C$ 698
Wed 15/54:15 p.m.YOW - ORD
2 stops26h 25mMultiple Airlines
Wed 22/57:13 p.m.ORD - YOW
2 stops23h 54mMultiple Airlines
Deal found 9/5C$ 706
Wed 15/54:15 p.m.YOW - ORD
2 stops26h 25mMultiple Airlines
Wed 22/55:00 a.m.ORD - YOW
3 stops29h 42mMultiple Airlines
Deal found 9/5C$ 707
Wed 15/54:15 p.m.YOW - ORD
1 stop8h 37mMultiple Airlines
Tue 21/59:35 a.m.ORD - YOW
2 stops25h 07mMultiple Airlines
Deal found 9/5C$ 710
Wed 15/54:15 p.m.YOW - ORD
1 stop8h 37mMultiple Airlines
Wed 22/57:13 p.m.ORD - YOW
2 stops23h 54mMultiple Airlines
Deal found 9/5C$ 714
Thu 16/54:15 p.m.YOW - ORD
2 stops19h 53mMultiple Airlines
Tue 21/59:35 a.m.ORD - YOW
3 stops26h 04mMultiple Airlines
Deal found 8/5C$ 732
Wed 15/56:55 p.m.YOW - MDW
1 stop3h 42mPorter Airlines
Tue 21/511:05 a.m.MDW - YOW
1 stop6h 09mPorter Airlines
Deal found 10/5C$ 742
Wed 15/54:15 p.m.YOW - ORD
3 stops25h 20mMultiple Airlines
Fri 17/56:10 a.m.ORD - YOW
1 stop9h 57mMultiple Airlines
Deal found 9/5C$ 743

One-way flights to Illinois from Ottawa

Search for one-way flight options from Ottawa to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 437,143 searches. Data last updated 10 May 2024.
Users in need of a one-way flight from Ottawa to Illinois can choose from these deals. Users can also find round-trip Ottawa to Illinois flights by using the search form above.
Mon 24/65:10 p.m.YOW - MDW
1 stop5h 27mPorter Airlines
Deal found 8/5C$ 273
Mon 20/54:15 p.m.YOW - ORD
2 stops26h 25mMultiple Airlines
Deal found 9/5C$ 278
Mon 20/54:15 p.m.YOW - ORD
1 stop18h 59mMultiple Airlines
Deal found 9/5C$ 280
Mon 20/58:50 a.m.YOW - ORD
1 stop26h 24mMultiple Airlines
Deal found 9/5C$ 282
Mon 20/54:15 p.m.YOW - ORD
3 stops26h 25mMultiple Airlines
Deal found 9/5C$ 296
Mon 20/54:15 p.m.YOW - ORD
3 stops26h 25mMultiple Airlines
Deal found 9/5C$ 297
Tue 30/712:00 p.m.YOW - ORD
1 stop5h 32mMultiple Airlines
Deal found 9/5C$ 313
Wed 31/75:10 p.m.YOW - MDW
1 stop5h 27mPorter Airlines
Deal found 9/5C$ 315
Mon 24/65:10 p.m.YOW - ORD
2 stops16h 14mMultiple Airlines
Deal found 8/5C$ 317

Find flights from Ottawa to Illinois within your budget

Customize your flight search to find flights from Ottawa to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 437,143 searches. Data last updated 10 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 470 - C$ 1,076

Route

Depart

Return

Price

OttawaChicago Midway

YOW - MDW

YOWMDW

Ottawa

Fri 31/5

1 stop4h 02m

Chicago Midway

Mon 3/6

1 stop5h 49m

C$ 470

OttawaChicago O'Hare Intl

YOW - ORD

YOWORD

Ottawa

Fri 7/6

2 stops17h 59m

Chicago O'Hare Intl

Wed 12/6

1 stop14h 12m

C$ 473

OttawaChicago Midway

YOW - MDW

YOWMDW

Ottawa

Thu 30/5

1 stop5h 27m

Chicago Midway

Mon 3/6

1 stop4h 04m

C$ 473

OttawaChicago Midway

YOW - MDW

YOWMDW

Ottawa

Mon 17/6

1 stop3h 42m

Chicago Midway

Sat 22/6

1 stop4h 49m

C$ 485

OttawaChicago O'Hare Intl

YOW - ORD

YOWORD

Ottawa

Sat 29/6

1 stop6h 14m

Chicago O'Hare Intl

Sun 30/6

1 stop6h 13m

C$ 514

OttawaChicago O'Hare Intl

YOW - ORD

YOWORD

Ottawa

Fri 7/6

2 stops15h 16m

Chicago O'Hare Intl

Wed 12/6

2 stops18h 27m

C$ 546

OttawaChicago O'Hare Intl

YOW - ORD

YOWORD

Ottawa

Fri 7/6

Nonstop2h 22m

Chicago O'Hare Intl

Wed 12/6

Nonstop2h 18m

C$ 717

OttawaChicago Midway

YOW - MDW

YOWMDW

Ottawa

Fri 31/5

2 stops26h 46m

Chicago Midway

Mon 3/6

2 stops27h 52m

C$ 779

OttawaChicago O'Hare Intl

YOW - ORD

YOWORD

Ottawa

Thu 15/8

2 stops30h 28m

Chicago O'Hare Intl

Sun 18/8

2 stops28h 47m

C$ 1,076

Flights are sorted by cheapest first

Deals found on 9/5

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 10 May 2024.
Get a feel of what it's like to fly with Air Canada, United Airlines and Delta from Ottawa to Illinois by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,768 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.1
Very good
10,768 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

WestJet
7.6
Good
2,942 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Porter Airlines
7.4
Good
424 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
11,016 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Air Canada
7.0
Good
6,929 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ottawa to Illinois?

    Ottawa (YOW) is the airport you will fly out of if you book a flight from Ottawa to Illinois. It is only a 10.6 km journey to Ottawa (YOW) from Ottawa’s city centre.

  • Can I find flights from Ottawa to Illinois for under C$ 500 on Cheapflights?

    Yes, there are multiple flights from Ottawa to Illinois for under C$ 500. The cheapest flight booked recently is on Porter Airlines for just C$ 470, but on average you can expect to pay C$ 530.

  • Are there direct flights from Ottawa to Illinois for under C$ 800 on Cheapflights?

    Cheapflights has 20 direct flights from Ottawa to Illinois under C$ 800. A good price for a direct flight from Ottawa to Illinois is less than C$ 907.

  • Are there last-minute flights available from Ottawa to Illinois for under C$ 700?

    There are currently 20+ open flights from Ottawa to Illinois within the next 7 days for less than C$ 700.

  • What are the cheapest airlines to fly from Ottawa to Illinois one-way?

    The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as C$ 273. However, be on the lookout for offers from WestJet and United Airlines, as they are both options that can get you from Ottawa to Illinois for a low price.

  • What are the most popular routes from Ottawa to Illinois?

    Most travellers choose Ottawa - Chicago O'Hare Intl, Ottawa - Chicago Midway or Ottawa - Lambert-St Louis when deciding on the best route from Ottawa to Illinois.

  • What are the most reliable airlines from Ottawa to Illinois?

    Before booking your flight to Illinois from Ottawa, check out the most reliable airlines to get you to your destination on time: ANA (95%), Air Canada (88%), United Airlines( 88%).

  • What are the cheapest flights from Ottawa to Illinois?

    Looking for the cheapest flight from Ottawa to Illinois? While on average our users pay C$ 2,182, our data indicates the cheapest price to be C$ 243. The most popular route (Ottawa - Chicago O'Hare Intl), is priced around C$ 473.

  • What does YOW to ORD mean?

    Great question - YOW to ORD just means Ottawa Airport to Chicago O'Hare Intl Airport. Now you’ll know what these unique codes when you look for flights! Ready for more IATA code knowledge? These are related airports for your current travel destination: Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI).

  • Can I find deals for flights from Ottawa to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Ottawa to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ottawa to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ottawa to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ottawa to Illinois that include hotel bookings?

    Yes. In addition to deals on Ottawa to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Illinois.

  • Can I find deals for business class flights from Ottawa to Illinois?

    Yes. Cheapflights offers flight deals from Ottawa to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ottawa to Illinois that allow pets onboard?

    Many airlines flying from Ottawa to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ottawa to Illinois?

    Yes, you can often find last-minute deals on Ottawa to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ottawa to Illinois flight deals updated?

    The Ottawa to Illinois flight deals you see on this page were last updated on 10/5.

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Alternative routes for Ottawa to Illinois
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Top 3 airlines flying from Ottawa to Illinois

Discover the top 3 airlines that operate flights from Ottawa to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 437,143 searches. Data last updated 10 May 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 387AverageC$ 530FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 525AverageC$ 740FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 663AverageC$ 884FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Ottawa to Illinois by cabin class

Find flights from Ottawa to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Ottawa to Illinois

Find hourly flight availability from Ottawa to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 May 2024.
58%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
42%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
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6 AM
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Fly with Cheapflights

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How does Cheapflights help users find flights from Ottawa to Illinois?

Cheapflights makes it easy to find Ottawa to Illinois flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Illinois?

Cheapflights helps you find that perfect flight to Illinois from Ottawa by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ottawa to Illinois with no change fees?

Yes! Cheapflights helps users easily find flights from Ottawa to Illinois with no change fees.

Can Cheapflights notify me if prices for flights from Ottawa to Illinois become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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