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Cheap flights from Illinois to Ottawa from C$ 224

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
29 Aug — 5 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Ottawa

Enter your travel dates to find the best prices.

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 30 July 2026.

Tue 1/910:40 a.m.
ORD
-
YOW
Nonstop2h 19m
Air Canada
Tue 1/95:20 p.m.
YOW
-
ORD
1 stop4h 21m
Air Canada
Deal found 30/7C$ 376
Wed 9/99:55 a.m.
ORD
-
YOW
1 stop13h 25m
Multiple Airlines
Wed 16/96:55 a.m.
YOW
-
ORD
1 stop13h 53m
Multiple Airlines
Deal found 26/7C$ 512
Thu 10/911:05 a.m.
ORD
-
YOW
2 stops12h 15m
Multiple Airlines
Thu 17/96:55 a.m.
YOW
-
ORD
1 stop13h 53m
Multiple Airlines
Deal found 27/7C$ 526
Sun 13/93:20 p.m.
MDW
-
YOW
1 stop20h 32m
Porter Airlines
Sun 20/95:55 p.m.
YOW
-
MDW
1 stop18h 05m
Porter Airlines
Deal found 30/7C$ 557
Thu 24/93:20 p.m.
MDW
-
YOW
1 stop8h 00m
Multiple Airlines
Sun 27/96:25 p.m.
YOW
-
MDW
1 stop17h 35m
Multiple Airlines
Deal found 27/7C$ 558
Thu 27/810:25 a.m.
MDW
-
YOW
1 stop12h 55m
Multiple Airlines
Sun 30/86:55 a.m.
YOW
-
MDW
1 stop8h 40m
Multiple Airlines
Deal found 27/7C$ 599
Fri 11/93:20 p.m.
MDW
-
YOW
1 stop20h 32m
Porter Airlines
Mon 14/910:40 a.m.
YOW
-
MDW
1 stop4h 55m
Porter Airlines
Deal found 26/7C$ 616
Tue 1/911:45 a.m.
MDW
-
YOW
1 stop5h 07m
Porter Airlines
Tue 1/98:45 p.m.
YOW
-
MDW
1 stop15h 15m
Porter Airlines
Deal found 30/7C$ 626
Sat 12/911:45 a.m.
MDW
-
YOW
1 stop6h 22m
Porter Airlines
Sat 19/910:40 a.m.
YOW
-
MDW
1 stop4h 55m
Porter Airlines
Deal found 28/7C$ 630
Sun 13/96:46 p.m.
MDW
-
YOW
2 stops19h 29m
Multiple Airlines
Sun 20/95:55 p.m.
YOW
-
MDW
1 stop18h 05m
Multiple Airlines
Deal found 30/7C$ 666
Thu 20/810:25 a.m.
MDW
-
YOW
1 stop6h 29m
Porter Airlines
Mon 24/88:45 p.m.
YOW
-
MDW
1 stop14h 00m
Porter Airlines
Deal found 30/7C$ 671
Wed 9/93:20 p.m.
MDW
-
YOW
1 stop3h 42m
Porter Airlines
Wed 16/98:00 a.m.
YOW
-
MDW
1 stop4h 00m
Porter Airlines
Deal found 26/7C$ 682

Find flight deals from Illinois to Ottawa

Keep the following information in mind while searching for Illinois to Ottawa flight deals. Data was last updated 30 July 2026.

Round-trip from

C$ 376

One-way from

C$ 224

Popular in

February

Cheapest in

April

Average price

C$ 1,017

Good one-way deal

C$ 473 or less
Air Canada
  • Air Canada
  • 1/9-1/9
  • 1 total stop
  • 6h 40m total
  • Illinois to Ottawa
Search Deals
1/10
  • 1/10
  • 2 total stops
  • 15h 35m total
  • Illinois to Ottawa
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a one-way flight from Illinois to Ottawa.
Search Deals

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 30 July 2026.
Use the filters below to find and compare flights from Illinois to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Wed 9/9

11:45 a.m.-5:52 p.m.

1 stop5h 07m

Ottawa

Wed 16/9

10:40 a.m.-2:35 p.m.

1 stop4h 55m

C$ 700

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Wed 9/9

11:45 a.m.-5:52 p.m.

1 stop5h 07m

Ottawa

Sun 20/9

10:40 a.m.-2:35 p.m.

1 stop4h 55m

C$ 812

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Mon 17/8

10:25 a.m.-5:54 p.m.

1 stop6h 29m

Ottawa

Mon 24/8

8:45 p.m.-9:45 a.m.

1 stop14h 00m

C$ 854

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 29/9

8:03 a.m.-2:55 p.m.

1 stop5h 52m

Ottawa

Sat 3/10

8:40 a.m.-2:20 p.m.

1 stop6h 40m

C$ 857

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Mon 28/9

11:45 a.m.-5:52 p.m.

1 stop5h 07m

Ottawa

Mon 28/9

8:45 p.m.-11:00 a.m.

1 stop15h 15m

C$ 883

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 9/10

11:45 a.m.-5:52 p.m.

1 stop5h 07m

Ottawa

Sun 11/10

8:45 p.m.-11:00 a.m.

1 stop15h 15m

C$ 929

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sun 13/9

3:20 p.m.-8:02 p.m.

1 stop3h 42m

Ottawa

Sun 20/9

10:40 a.m.-2:35 p.m.

1 stop4h 55m

C$ 956

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 4/9

3:20 p.m.-9:42 p.m.

1 stop5h 22m

Ottawa

Sun 6/9

10:40 a.m.-2:35 p.m.

1 stop4h 55m

C$ 982

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 29/9

3:20 p.m.-9:42 p.m.

1 stop5h 22m

Ottawa

Sat 3/10

9:15 a.m.-2:35 p.m.

1 stop6h 20m

C$ 989

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sun 27/9

9:29 a.m.-5:35 p.m.

2 stops7h 06m

Ottawa

Thu 1/10

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

2 stops12h 38m

C$ 1,108

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/7

Showing 1-10 of 50 resultsSorted by cheapest first
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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, April is the cheapest month in which you can book a flight from Illinois to Ottawa (average of C$ 561). Flying from Illinois to Ottawa in June is currently the most expensive (average of C$ 1,173). 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 30 July 2026.

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 30 July 2026.

The most flights from USIL to YOW are scheduled on a Wednesday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).

How much does it cost to fly round-trip from Illinois to Ottawa?

Airfare is below average for this route at the moment.
Illinois to Ottawa flights typically cost between C$ 623 and C$ 1,045 in September.
The cheapest round-trip price found within the last 5 days was C$ 376 on Air Canada (1 Sep-1 Sep).

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.

  • How long is the flight from Illinois to Ottawa?

    Airlines like Porter Airlines, American Airlines, and Air Canada fly from Illinois to Ottawa in about 2h 14m. The time it takes to get you to your destination can typically vary by up to 30h 39m. Illinois and Ottawa are separated by a distance of 1051 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 Republic Airways (85%), United Airlines (81%) or ANA (78%) 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$ 302. On average you can expect to pay C$ 557. The most popular route, (Chicago O'Hare Intl - Ottawa), can usually be booked for C$ 585.

  • 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, April is the cheapest month in which you can book a flight from Illinois to Ottawa (average of C$ 561). Flying from Illinois to Ottawa in June is currently the most expensive (average of C$ 1,173). 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 Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Prescott
Wakefield
Pembroke
Smiths Falls

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Alternative routes for Illinois to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Illinois to Ottawa, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Illinois to Ottawa.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Illinois to Ottawa, users can toggle the no change fees filter when performing a flight search.

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

Not ready to book yet? You can track prices for flights from Illinois to Ottawa on Cheapflights with our Price Alert feature and get notified when better prices are available.

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