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Cheap flights from Illinois to Ottawa from C$ 153

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 18/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
27 Apr — 4 May1
1 adult

Cheap flight deals from Illinois to Ottawa

Keep the following information in mind while searching for Illinois to Ottawa flight deals. Data was last updated 22 April 2025.

Round-trip from

C$ 301

One-way from

C$ 153

Popular in

November

Cheapest in

July

Average price

C$ 673

Good round-trip deal

C$ 673 or less
Porter Airlines
  • Porter Airlines
  • 29/5-1/6
  • 2 total stops
  • 11h 12m total
  • Illinois to Ottawa
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Porter Airlines
  • Porter Airlines
  • 18/7
  • 1 total stop
  • 5h 53m total
  • Illinois to Ottawa
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Highest demand for flights based on searches. 4% potential increase in price (C$ 48 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 17 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Illinois to Ottawa.
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Find flight deals from Illinois to Ottawa

Cheapest flights from Illinois to Ottawa
Explore the most affordable flight options available from Illinois to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 April 2025.

Thu 29/59:40 a.m.MDW - YOW
1 stop5h 53mPorter Airlines
Sun 1/612:35 p.m.YOW - MDW
1 stop5h 19mPorter Airlines
Deal found 21/4C$ 301
Thu 22/59:40 a.m.MDW - YOW
1 stop5h 53mMultiple Airlines
Sun 25/55:55 a.m.YOW - MDW
1 stop11h 59mMultiple Airlines
Deal found 22/4C$ 361
Wed 7/55:51 a.m.ORD - YOW
1 stop8h 20mMultiple Airlines
Wed 18/611:20 a.m.YOW - ORD
2 stops13h 25mMultiple Airlines
Deal found 22/4C$ 494
Tue 27/53:35 p.m.ORD - YOW
1 stop5h 32mAir Canada
Wed 4/66:00 a.m.YOW - ORD
1 stop4h 52mAir Canada
Deal found 22/4C$ 628
Tue 24/62:25 p.m.ORD - YOW
2 stops8h 57mWestJet
Wed 25/65:55 a.m.YOW - ORD
2 stops8h 00mWestJet
Deal found 21/4C$ 724
Thu 3/71:56 p.m.ORD - YOW
Nonstop2h 10mUnited Airlines
Sun 6/76:33 a.m.YOW - ORD
Nonstop2h 22mUnited Airlines
Deal found 21/4C$ 778
Tue 10/69:24 a.m.MDW - YOW
2 stops13h 58mDelta
Wed 18/65:55 a.m.YOW - MDW
2 stops13h 46mDelta
Deal found 21/4C$ 1,146
Mon 28/412:48 p.m.MDW - YOW
2 stops10h 34mWestJet
Wed 30/45:55 a.m.YOW - MDW
2 stops28h 12mWestJet
Deal found 21/4C$ 1,458

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Ottawa 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 629,999 searches. Data last updated 22 April 2025.
Use the filters below to find and compare flights from Illinois to Ottawa that are best for you.

Fly from

Illinois

Fly to

Ottawa

Route

Depart

Return

Price

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 29/5

9:40 a.m.-4:33 p.m.

1 stop5h 53m

Ottawa

Sun 1/6

12:35 p.m.-4:54 p.m.

1 stop5h 19m

C$ 301

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 22/5

9:40 a.m.-4:33 p.m.

1 stop5h 53m

Ottawa

Sun 25/5

5:55 a.m.-4:54 p.m.

1 stop11h 59m

C$ 361

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 7/5

5:51 a.m.-3:11 p.m.

1 stop8h 20m

Ottawa

Wed 18/6

11:20 a.m.-11:45 p.m.

2 stops13h 25m

C$ 494

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 27/5

3:35 p.m.-10:07 p.m.

1 stop5h 32m

Ottawa

Wed 4/6

6:00 a.m.-9:52 a.m.

1 stop4h 52m

C$ 628

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 24/6

2:25 p.m.-12:22 a.m.

2 stops8h 57m

Ottawa

Wed 25/6

5:55 a.m.-12:55 p.m.

2 stops8h 00m

C$ 724

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 3/7

1:56 p.m.-5:06 p.m.

Nonstop2h 10m

Ottawa

Sun 6/7

6:33 a.m.-7:55 a.m.

Nonstop2h 22m

C$ 778

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 27/5

9:00 a.m.-12:22 a.m.

2 stops14h 22m

Ottawa

Wed 4/6

5:55 a.m.-4:30 p.m.

2 stops11h 35m

C$ 1,028

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 10/6

9:24 a.m.-12:22 a.m.

2 stops13h 58m

Ottawa

Wed 18/6

5:55 a.m.-6:41 p.m.

2 stops13h 46m

C$ 1,146

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 18/7

9:20 a.m.-12:41 a.m.

2 stops14h 21m

Ottawa

Mon 21/7

6:00 a.m.-6:03 p.m.

2 stops13h 03m

C$ 1,494

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 18/7

9:40 a.m.-4:33 p.m.

1 stop5h 53m

C$ 153

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/4

Showing 1-10 of 17 results
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Best time to book a flight from Illinois to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Ottawa

What is the cheapest month to book a flight from Illinois to Ottawa?

Currently, October is the cheapest month in which you can book a flight from Illinois to Ottawa (average of C$ 224). Flying from Illinois to Ottawa in December is currently the most expensive (average of C$ 326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to YOW?

Find hourly flight availability from Illinois to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 April 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Ottawa as you normally would.

Weekly flight availability from Illinois to Ottawa

Explore weekly flight availability from Illinois to Ottawa. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 22 April 2025.

The most flights from USIL to YOW are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated 22 April 2025.
To help decide which airline to fly from Illinois to Ottawa, see what other customers have to say about Porter Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
284 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.8

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Porter Airlines
8.0
Very good
284 reviews
Porter Airlines
8.0
Very good
284 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.8

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Delta
8.0
Very good
7,920 reviews
Porter Airlines
8.0
Very good
284 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.8

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
United Airlines
7.4
Good
8,683 reviews
Porter Airlines
8.0
Very good
284 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.8

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
WestJet
7.2
Good
2,813 reviews
Porter Airlines
8.0
Very good
284 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.8

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Air Canada
7.0
Good
9,180 reviews
Porter Airlines
8.0
Very good
284 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Crew

8.8

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Related info for your journey

Find useful and relevant information for your journey from Illinois to Ottawa. 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 into for flights to Ottawa from Illinois?

    Most people fly into Ottawa (YOW) if they book a flight to Ottawa from Illinois. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.

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

    C$ 153 is the cheapest one-way deal found within the past few days, from Porter Airlines. You may also be able to find cheap deals on WestJet and Air Canada, with prices starting from C$ 315 and C$ 339, respectively.

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

    When deciding which route to take from Illinois to Ottawa consider Chicago O'Hare Intl - Ottawa, Chicago Midway - Ottawa or Bloomington-Normal - Ottawa as they are the most popular.

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

    No one likes to see their flight delayed. When booking a flight from Illinois to Ottawa consider choosing Avianca (87%), Republic Airways (86%) or ANA (84%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Ottawa?

    The cheapest flight price from Illinois to Ottawa is C$ 461. On average you can expect to pay C$ 767. The most popular route, (Chicago O'Hare Intl - Ottawa), can usually be booked for C$ 521.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Illinois to Ottawa?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Ottawa (average of C$ 224). Flying from Illinois to Ottawa in December is currently the most expensive (average of C$ 326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
Gatineau
Perth
Smiths Falls
Prescott
Brockville
Wakefield
Lanark

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