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Cheap flights from Illinois to Ottawa from C$ 216

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
2 Apr — 9 Apr1
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 28 March 2025.

Round-trip from

C$ 502

One-way from

C$ 216

Popular in

November

Cheapest in

July

Average price

C$ 755

Good round-trip deal

C$ 696 or less

Good one-way deal

C$ 364 or less
Porter Airlines
  • Porter Airlines
  • 8/5-11/5
  • 2 total stops
  • 11h 12m total
  • Illinois to Ottawa
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9/4
  • 9/4
  • 1 total stop
  • 26h 03m total
  • Illinois to Ottawa
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 51 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 19 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Illinois to Ottawa.
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Price to beat on a one-way 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 28 March 2025.

Thu 8/59:40 a.m.MDW - YOW
1 stop5h 53mPorter Airlines
Sun 11/512:35 p.m.YOW - MDW
1 stop5h 19mPorter Airlines
Deal found 27/3C$ 502
Tue 22/47:47 p.m.ORD - YOW
2 stops18h 23mMultiple Airlines
Thu 24/44:20 p.m.YOW - ORD
1 stop19h 39mMultiple Airlines
Deal found 27/3C$ 519
Sun 11/56:15 a.m.MDW - YOW
1 stop12h 40mMultiple Airlines
Sun 18/512:35 p.m.YOW - MDW
1 stop5h 19mMultiple Airlines
Deal found 26/3C$ 555
Sun 11/54:25 p.m.ORD - YOW
1 stop6h 28mAir Canada
Sun 18/55:25 p.m.YOW - ORD
Nonstop2h 29mAir Canada
Deal found 26/3C$ 670
Sun 15/61:40 p.m.ORD - YOW
1 stop25h 40mWestJet
Fri 20/66:10 a.m.YOW - ORD
1 stop31h 29mWestJet
Deal found 26/3C$ 733
Thu 24/49:05 p.m.ORD - YOW
1 stop11h 53mUnited Airlines
Thu 1/52:45 p.m.YOW - ORD
1 stop9h 30mUnited Airlines
Deal found 27/3C$ 772
Tue 6/59:30 a.m.ORD - YOW
2 stops13h 52mDelta
Tue 13/55:55 a.m.YOW - ORD
2 stops11h 35mDelta
Deal found 27/3C$ 1,238
Tue 6/59:20 a.m.MDW - YOW
2 stops14h 02mDelta
Tue 13/55:55 a.m.YOW - MDW
2 stops13h 50mDelta
Deal found 27/3C$ 1,256
Tue 8/412:48 p.m.MDW - YOW
2 stops10h 21mWestJet
Wed 9/48:10 p.m.YOW - MDW
2 stops23h 08mWestJet
Deal found 27/3C$ 1,598

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 28 March 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 8/5

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

1 stop5h 53m

Ottawa

Sun 11/5

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

1 stop5h 19m

C$ 502

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 22/4

7:47 p.m.-3:10 p.m.

2 stops18h 23m

Ottawa

Thu 24/4

4:20 p.m.-10:59 a.m.

1 stop19h 39m

C$ 519

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sun 11/5

6:15 a.m.-7:55 p.m.

1 stop12h 40m

Ottawa

Sun 18/5

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

1 stop5h 19m

C$ 555

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sun 11/5

4:25 p.m.-11:53 p.m.

1 stop6h 28m

Ottawa

Sun 18/5

5:25 p.m.-6:54 p.m.

Nonstop2h 29m

C$ 670

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sun 15/6

1:40 p.m.-4:20 p.m.

1 stop25h 40m

Ottawa

Fri 20/6

6:10 a.m.-12:39 p.m.

1 stop31h 29m

C$ 733

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 24/4

9:05 p.m.-9:58 a.m.

1 stop11h 53m

Ottawa

Thu 1/5

2:45 p.m.-11:15 p.m.

1 stop9h 30m

C$ 772

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 6/5

9:30 a.m.-12:22 a.m.

2 stops13h 52m

Ottawa

Tue 13/5

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

2 stops11h 35m

C$ 1,238

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 6/5

9:20 a.m.-12:22 a.m.

2 stops14h 02m

Ottawa

Tue 13/5

5:55 a.m.-6:45 p.m.

2 stops13h 50m

C$ 1,256

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 8/4

12:48 p.m.-12:09 a.m.

2 stops10h 21m

Ottawa

Wed 9/4

8:10 p.m.-6:18 p.m.

2 stops23h 08m

C$ 1,598

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 9/4

11:54 a.m.-2:57 p.m.

1 stop26h 03m

C$ 216

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/3

Showing 1-10 of 14 results
1
2

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 28 March 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.

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 28 March 2025.
To help decide which airline to fly from Illinois to Ottawa, see what other customers have to say about Delta, Porter Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Porter Airlines
7.9
Good
277 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,788 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
8,981 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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$ 276 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 Air Canada and Delta, with prices starting from C$ 370 and C$ 622, 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 (90%), Emirates (89%) or Republic Airways (89%) 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$ 212. On average you can expect to pay C$ 679. The most popular route, (Chicago O'Hare Intl - Ottawa), can usually be booked for C$ 440.

  • 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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See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Illinois to Ottawa?

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