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$109+ Cheap flights from Illinois to Ottawa (YOW)

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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$285
(Kiwi.com)

One-way from

$109
(Kiwi.com)

Popular in

November

Cheapest in

May

Average price

$446

Good round-trip deal

$578 or less

Good one-way deal

$463 or less
Provider with most accurate pricing for Chicago (CHI)-Ottawa flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Ottawa flights.
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From Illinois to Ottawa
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One-way flight from Illinois to Ottawa
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Highest demand for flights based on searches. 6% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:23 pmORD - YOW
1 stop28h 35mMultiple Airlines
Thu 12/44:15 pmYOW - ORD
1 stop8h 54mMultiple Airlines
Deal found 10/30$285
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:34 pmORD - YOW
1 stop16h 01mMultiple Airlines
Fri 11/213:05 pmYOW - ORD
2 stops31h 52mMultiple Airlines
Deal found 10/29$315
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:43 pmORD - YOW
1 stop31h 42mMultiple Airlines
Sat 12/134:15 pmYOW - ORD
1 stop31h 47mMultiple Airlines
Deal found 10/29$320
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:20 amMDW - YOW
1 stop5h 15mMultiple Airlines
Thu 12/45:40 amYOW - MDW
1 stop10h 40mMultiple Airlines
Deal found 10/30$339
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:44 amORD - YOW
2 stops11h 41mMultiple Airlines
Thu 12/184:20 pmYOW - ORD
1 stop17h 32mMultiple Airlines
Deal found 10/28$349
This Mytrip deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:20 amORD - YOW
1 stop15h 38mMultiple Airlines
Mon 1/54:20 pmYOW - ORD
3 stops27h 19mMultiple Airlines
Deal found 10/29$353
This Trip.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:00 amMDW - YOW
1 stop7h 54mPorter Airlines
Thu 12/186:50 amYOW - MDW
1 stop4h 15mPorter Airlines
Deal found 10/28$357
This United deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:50 amSTL - YOW
1 stop9h 06mMultiple Airlines
Fri 12/199:15 amYOW - STL
1 stop7h 14mMultiple Airlines
Deal found 10/28$359
This Mytrip deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:00 amMDW - YOW
1 stop5h 29mPorter Airlines
Sat 12/138:40 amYOW - MDW
1 stop4h 10mPorter Airlines
Deal found 10/29$360
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:00 amORD - YOW
1 stop11h 25mMultiple Airlines
Mon 12/224:20 pmYOW - ORD
1 stop17h 42mMultiple Airlines
Deal found 10/30$361
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:42 pmSTL - YOW
1 stop14h 44mUnited Airlines
Sat 12/205:59 pmYOW - STL
1 stop6h 34mUnited Airlines
Deal found 10/29$363
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:10 pmMDW - YOW
1 stop7h 48mMultiple Airlines
Mon 1/54:20 pmYOW - MDW
2 stops30h 55mMultiple Airlines
Deal found 10/29$366

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 2,558,603 searches. Data last updated October 30, 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

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 11/27

6:23 pm-11:58 pm

1 stop28h 35m

Ottawa

Thu 12/4

4:15 pm-12:09 am

1 stop8h 54m

$285

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sat 11/15

7:34 pm-12:35 pm

1 stop16h 01m

Ottawa

Fri 11/21

3:05 pm-9:57 pm

2 stops31h 52m

$315

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 11/27

6:20 am-12:35 pm

1 stop5h 15m

Ottawa

Thu 12/4

6:50 am-1:01 pm

2 stops7h 11m

$340

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Mon 12/29

7:20 am-11:58 pm

1 stop15h 38m

Ottawa

Mon 1/5

4:20 pm-6:39 pm

3 stops27h 19m

$353

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 12/11

11:00 am-7:54 pm

1 stop7h 54m

Ottawa

Thu 12/18

6:50 am-10:05 am

1 stop4h 15m

$357

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 12/17

11:50 am-9:56 pm

1 stop9h 06m

Ottawa

Fri 12/19

9:15 am-3:29 pm

1 stop7h 14m

$359

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Wed 12/3

11:00 am-5:29 pm

1 stop5h 29m

Ottawa

Sat 12/13

8:40 am-11:50 am

1 stop4h 10m

$360

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 12/17

5:00 am-5:25 pm

1 stop11h 25m

Ottawa

Mon 12/22

4:20 pm-9:02 am

1 stop17h 42m

$361

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 12/13

6:42 pm-10:26 am

1 stop14h 44m

Ottawa

Sat 12/20

5:59 pm-11:33 pm

1 stop6h 34m

$363

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Mon 12/29

3:10 pm-11:58 pm

1 stop7h 48m

Ottawa

Mon 1/5

4:20 pm-10:15 pm

2 stops30h 55m

$366

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 42 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, November is the cheapest month in which you can book a flight from Illinois to Ottawa (average of $131). Flying from Illinois to Ottawa in December is currently the most expensive (average of $264). 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 October 30, 2025.

It’s optimal to fly from Illinois to Ottawa in the afternoon. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the morning.

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?

    If you book a flight to Ottawa from Illinois, you will be flying to Ottawa, which is the city’s only airport. Ottawa (YOW) is located 6.6 mi from the center of Ottawa.

  • How long is the flight from Illinois to Ottawa?

    Departing from Illinois to Ottawa will take you 7h 54m. There are 651 mi between Illinois and Ottawa. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 Lambert-St Louis - 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%), ANA (84%) or Air Canada (81%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Ottawa?

    While on average a flight from Illinois to Ottawa is generally $692, our data shows the cheapest flight currently is $181. When looking at the most popular route, (Chicago O'Hare Intl - Ottawa), you can expect to pay $248 for that flight.

  • 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, November is the cheapest month in which you can book a flight from Illinois to Ottawa (average of $131). Flying from Illinois to Ottawa in December is currently the most expensive (average of $264). 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

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Petawawa

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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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Top 3 airlines flying from Illinois to Ottawa

Discover the top 3 airlines that operate flights from Illinois to Ottawa. 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 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$189Average$357FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$189Average$352FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$236Average$545FlexibilityNo cancel feeOn-time69%

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