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$118+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$291
(Kiwi.com)

One-way from

$118
(Kiwi.com)

Popular in

November

Cheapest in

May

Average price

$493

Good round-trip deal

$449 or less

Good one-way deal

$509 or less
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. 8% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/115:30 pmORD - YOW
2 stops23h 28mMultiple Airlines
Wed 10/224:25 pmYOW - ORD
1 stop16h 49mMultiple Airlines
Deal found 9/9$275
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/115:30 pmORD - YOW
2 stops23h 28mMultiple Airlines
Mon 10/207:50 amYOW - ORD
1 stop9h 53mMultiple Airlines
Deal found 9/9$278
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/115:30 pmORD - YOW
2 stops23h 28mMultiple Airlines
Sat 10/183:50 pmYOW - ORD
1 stop8h 55mMultiple Airlines
Deal found 9/9$279
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/115:30 pmORD - YOW
2 stops23h 28mMultiple Airlines
Tue 10/213:50 pmYOW - ORD
1 stop8h 55mMultiple Airlines
Deal found 9/9$283
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/15:17 pmORD - YOW
1 stop22h 40mMultiple Airlines
Mon 10/63:50 pmYOW - ORD
1 stop8h 55mMultiple Airlines
Deal found 9/9$290
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/106:06 pmMDW - YOW
2 stops29h 35mMultiple Airlines
Wed 11/195:40 amYOW - MDW
1 stop10h 40mMultiple Airlines
Deal found 9/9$291
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/107:43 pmORD - YOW
1 stop20h 37mMultiple Airlines
Thu 10/236:00 amYOW - ORD
1 stop11h 43mMultiple Airlines
Deal found 9/9$297
This oojo deal was found by Cheapflights users on 9/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/105:30 pmORD - YOW
1 stop23h 50mWestJet
Sun 10/127:50 amYOW - ORD
1 stop9h 53mWestJet
Deal found 9/9$300
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/165:30 pmORD - YOW
2 stops18h 33mMultiple Airlines
Sat 10/183:50 pmYOW - ORD
1 stop8h 55mMultiple Airlines
Deal found 9/9$302
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/812:45 pmMDW - YOW
1 stop3h 44mMultiple Airlines
Mon 11/105:40 amYOW - MDW
1 stop10h 40mMultiple Airlines
Deal found 9/9$303
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/107:43 pmORD - YOW
1 stop20h 37mMultiple Airlines
Wed 10/224:25 pmYOW - ORD
1 stop16h 49mMultiple Airlines
Deal found 9/9$303
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/107:43 pmORD - YOW
1 stop20h 37mMultiple Airlines
Mon 10/207:50 amYOW - ORD
1 stop9h 53mMultiple Airlines
Deal found 9/9$304

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 September 11, 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

Sat 10/11

5:30 pm-5:58 pm

2 stops23h 28m

Ottawa

Wed 10/22

4:25 pm-8:14 am

1 stop16h 49m

$275

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sat 11/8

12:45 pm-5:29 pm

1 stop3h 44m

Ottawa

Mon 11/10

5:40 am-3:20 pm

1 stop10h 40m

$303

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Wed 10/1

9:35 am-4:34 pm

1 stop5h 59m

Ottawa

Mon 10/6

1:25 pm-4:24 pm

1 stop3h 59m

$306

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 10/16

5:20 pm-7:59 am

1 stop13h 39m

Ottawa

Fri 10/17

1:25 pm-4:24 pm

1 stop3h 59m

$320

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Mon 11/3

6:30 am-12:40 am

2 stops17h 10m

Ottawa

Wed 11/19

5:40 am-3:20 pm

1 stop10h 40m

$320

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sun 10/12

9:35 am-4:34 pm

1 stop5h 59m

Ottawa

Tue 10/14

1:25 pm-4:24 pm

1 stop3h 59m

$324

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 10/16

9:35 am-4:34 pm

1 stop5h 59m

Ottawa

Fri 10/17

4:25 pm-10:21 am

1 stop18h 56m

$324

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Mon 11/3

11:00 am-12:42 am

1 stop12h 42m

Ottawa

Tue 11/18

5:40 am-3:20 pm

1 stop10h 40m

$328

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Wed 10/1

9:35 am-4:34 pm

1 stop5h 59m

Ottawa

Mon 10/6

4:05 pm-1:38 pm

2 stops22h 33m

$342

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 10/17

5:05 am-5:20 pm

1 stop11h 15m

Ottawa

Sat 10/18

6:00 am-4:43 pm

1 stop11h 43m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 49 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, January is the cheapest month in which you can book a flight from Illinois to Ottawa (average of $294). Flying from Illinois to Ottawa in September is currently the most expensive (average of $419). 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 September 11, 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 September 11, 2025.

The most flights from USIL to YOW are scheduled on a Wednesday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).

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 5h 59m. There are 651 mi between Illinois and Ottawa.

  • 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 GoJet (80%), United Airlines (80%) or Republic Airways (80%) 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 $577, our data shows the cheapest flight currently is $332. When looking at the most popular route, (Chicago O'Hare Intl - Ottawa), you can expect to pay $306 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, January is the cheapest month in which you can book a flight from Illinois to Ottawa (average of $294). Flying from Illinois to Ottawa in September is currently the most expensive (average of $419). 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$189Average$366FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$189Average$400FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$236Average$560FlexibilityNo cancel feeOn-time69%

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