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Ottawa

$93+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap 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 December 15, 2025.

This FlightHub deal was found by Cheapflights users on 12/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:15 pmMDW - YOW
1 stop3h 39mPorter Airlines
Sun 12/2812:10 pmYOW - MDW
1 stop4h 10mPorter Airlines
Deal found 12/14$604
This Gotogate deal was found by Cheapflights users on 12/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:15 pmMDW - YOW
1 stop16h 09mPorter Airlines
Sun 12/2812:10 pmYOW - MDW
1 stop4h 10mPorter Airlines
Deal found 12/13$643
This Kiwi.com deal was found by Cheapflights users on 12/13. 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.
Tue 12/236:14 amMDW - YOW
2 stops34h 11mMultiple Airlines
Sun 12/288:55 pmYOW - MDW
1 stop14h 10mMultiple Airlines
Deal found 12/13$688
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 12/186:33 pmMDW - YOW
2 stops28h 25mMultiple Airlines
Thu 12/2512:10 pmYOW - MDW
1 stop4h 10mMultiple Airlines
Deal found 12/13$698
This Mytrip deal was found by Cheapflights users on 12/14. 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 12/159:14 pmORD - YOW
2 stops26h 11mMultiple Airlines
Mon 12/224:20 pmYOW - ORD
3 stops33h 10mMultiple Airlines
Deal found 12/14$733
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 12/187:20 amORD - YOW
1 stop15h 38mMultiple Airlines
Thu 12/253:40 pmYOW - ORD
2 stops17h 51mMultiple Airlines
Deal found 12/13$756
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
Sun 12/146:37 pmMDW - YOW
2 stops21h 14mMultiple Airlines
Wed 12/179:25 amYOW - MDW
1 stop28h 36mMultiple Airlines
Deal found 12/14$841
This Mytrip deal was found by Cheapflights users on 12/14. 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.
Sun 12/147:20 amORD - YOW
1 stop15h 38mMultiple Airlines
Wed 12/174:15 pmYOW - ORD
1 stop8h 54mMultiple Airlines
Deal found 12/14$842
This Air Canada deal was found by Cheapflights users on 12/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:30 pmORD - YOW
1 stop4h 08mAir Canada
Sun 12/287:15 amYOW - ORD
1 stop5h 50mAir Canada
Deal found 12/13$846
This Trip.com deal was found by Cheapflights users on 12/14. 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.
Mon 12/1511:00 amMDW - YOW
1 stop5h 29mPorter Airlines
Mon 12/226:50 amYOW - MDW
1 stop4h 15mPorter Airlines
Deal found 12/14$998
This FlightHub deal was found by Cheapflights users on 12/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:40 pmMDW - YOW
2 stops29h 02mWestJet
Thu 12/255:45 pmYOW - MDW
2 stops24h 34mWestJet
Deal found 12/13$1,355
This FlightHub deal was found by Cheapflights users on 12/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:29 amMDW - YOW
2 stops14h 13mWestJet
Sun 12/285:40 amYOW - MDW
2 stops28h 09mWestJet
Deal found 12/15$1,357

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Mytrip)

One-way from

$93
(Kiwi.com)

Popular in

November

Cheapest in

May

Average price

$609

Good round-trip deal

$630 or less

Good one-way deal

$399 or less
Provider with most accurate pricing for Chicago (CHI)-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Ottawa flights.
Search Deals
From Illinois to Ottawa
Search Deals
One-way flight from Illinois to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Ottawa.
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 2,558,603 searches. Data last updated December 15, 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

Fri 1/23

5:15 am-12:42 am

2 stops18h 27m

Ottawa

Sun 1/25

4:20 pm-9:03 pm

3 stops29h 43m

$262

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Mon 1/12

7:21 pm-2:58 pm

1 stop18h 37m

Ottawa

Mon 1/19

9:40 am-1:57 pm

2 stops29h 17m

$270

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sun 1/11

8:43 pm-5:25 pm

1 stop19h 42m

Ottawa

Sun 1/18

7:00 am-8:57 pm

1 stop14h 57m

$274

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 2/19

7:00 am-12:25 am

2 stops16h 25m

Ottawa

Sun 2/22

4:15 pm-11:27 am

1 stop20h 12m

$308

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 1/15

1:13 pm-12:25 am

1 stop10h 12m

Ottawa

Sun 1/18

5:40 am-8:57 pm

2 stops16h 17m

$325

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 1/15

6:30 pm-5:25 pm

1 stop21h 55m

Ottawa

Sun 1/18

3:55 pm-12:02 am

1 stop9h 07m

$348

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 3/4

4:05 pm-11:08 pm

1 stop6h 03m

Ottawa

Wed 3/18

10:20 am-3:29 pm

1 stop6h 09m

$361

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 2/2

4:05 pm-11:08 pm

1 stop6h 03m

Ottawa

Thu 2/5

10:20 am-3:29 pm

1 stop6h 09m

$361

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 1/6

4:05 pm-11:08 pm

1 stop6h 03m

Ottawa

Thu 1/8

9:15 am-3:29 pm

1 stop7h 14m

$362

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 1/5

4:05 pm-11:08 pm

1 stop6h 03m

Ottawa

Wed 1/7

10:20 am-3:29 pm

1 stop6h 09m

$362

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 35 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, April is the cheapest month in which you can book a flight from Illinois to Ottawa (average of $103). Flying from Illinois to Ottawa in July is currently the most expensive (average of $236). 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 December 15, 2025.

It’s optimal to fly from Illinois to Ottawa in the afternoon. By choosing this option you can save up to 25% 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 6h 03m. There are 878 mi between Illinois and Ottawa.

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

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $127. However, be on the lookout for offers from Porter Airlines and United Airlines, as they are both options that can get you from Illinois to Ottawa for a low price.

  • 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 SkyWest Airlines (100%), Avianca (93%) or United Airlines (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 $701, our data shows the cheapest flight currently is $139. When looking at the most popular route, (Chicago O'Hare Intl - Ottawa), you can expect to pay $270 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, April is the cheapest month in which you can book a flight from Illinois to Ottawa (average of $103). Flying from Illinois to Ottawa in July is currently the most expensive (average of $236). 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$189Average$328FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$236Average$545FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$250Average$370FlexibilityNo cancel feeOn-time52%

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