$115+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
Jun 17 — Jun 241
1 adult, Economy
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Find cheap flights from Illinois to Ottawa with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 June 12, 2025.
Round-trip from | $255 (FlightHub) |
|---|---|
One-way from | $115 (FlightHub) |
Popular in | November |
Cheapest in | May |
Average price | $474 |
Good round-trip deal | $279 or less |
Good one-way deal | $283 or less |
Find flight deals from Illinois to Ottawa
Cheapest flights from Illinois to OttawaExplore 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 June 12, 2025.
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 June 12, 2025.
This FlightHub deal was found by Cheapflights users on 6/12. 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 7/249:40 amMDW - YOW
1 stop8h 13mPorter Airlines
Tue 7/299:35 amYOW - MDW
1 stop7h 49mPorter Airlines
Deal found 6/12![Porter Airlines logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/255:30 pmORD - YOW
1 stop11h 28mMultiple Airlines
Tue 8/264:10 pmYOW - ORD
1 stop8h 00mMultiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$381
This Flightnetwork deal was found by Cheapflights users on 6/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/268:40 amORD - YOW
1 stop4h 04mAir Canada
Sat 8/28:35 amYOW - ORD
1 stop5h 38mAir Canada
Deal found 6/11![Air Canada logo]()
$407
This Mytrip deal was found by Cheapflights users on 6/12. 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 7/279:40 amMDW - YOW
1 stop8h 13mMultiple Airlines
Sun 8/38:35 amYOW - MDW
1 stop25h 10mMultiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$408
This Mytrip deal was found by Cheapflights users on 6/11. 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 7/911:24 amSTL - YOW
1 stop28h 42mMultiple Airlines
Wed 7/1611:00 amYOW - STL
2 stops23h 52mMultiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$415
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 7/256:15 pmORD - YOW
Nonstop2h 20mUnited Airlines
Fri 8/15:25 pmYOW - ORD
Nonstop2h 28mUnited Airlines
Deal found 6/10![United Airlines logo]()
$467
This oojo deal was found by Cheapflights users on 6/11. 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.
Thu 8/145:30 pmORD - YOW
1 stop12h 15mWestJet
Sun 8/176:00 amYOW - ORD
1 stop11h 44mWestJet
Deal found 6/11![WestJet logo]()
$480
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/811:05 amORD - YOW
2 stops12h 17mDelta
Sat 7/125:55 amYOW - ORD
2 stops7h 55mDelta
Deal found 6/10![Delta logo]()
$743
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/86:00 amMDW - YOW
2 stops17h 22mDelta
Sat 7/125:55 amYOW - MDW
2 stops7h 34mDelta
Deal found 6/10![Delta logo]()
$743
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Sun 7/69:15 amSTL - YOW
1 stop6h 50mAir Canada
Thu 7/102:40 pmYOW - STL
1 stop7h 10mAir Canada
Deal found 6/11![Air Canada logo]()
$746
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sun 7/66:33 amSTL - YOW
1 stop6h 31mUnited Airlines
Thu 7/106:33 amYOW - STL
1 stop6h 54mUnited Airlines
Deal found 6/11![United Airlines logo]()
$754
This WestJet deal was found by Cheapflights users on 6/10. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/254:10 pmBMI - YOW
2 stops7h 12mWestJet
Fri 8/15:55 amYOW - BMI
2 stops17h 31mWestJet
Deal found 6/10![WestJet logo]()
$930
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 June 12, 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 7/24
9:40 am-6:53 pm
1 stop8h 13m
Ottawa
Tue 7/29
9:35 am-4:24 pm
1 stop7h 49m
$255
ChicagoOttawa
ORD - YOW
ORDYOW
Chicago O'Hare Intl
Mon 8/25
5:30 pm-5:58 am
1 stop11h 28m
Ottawa
Tue 8/26
4:10 pm-11:10 pm
1 stop8h 00m
$381
ChicagoOttawa
ORD - YOW
ORDYOW
Chicago O'Hare Intl
Sat 7/26
8:40 am-1:44 pm
1 stop4h 04m
Ottawa
Sat 8/2
8:35 am-1:13 pm
1 stop5h 38m
$407
ChicagoOttawa
MDW - YOW
MDWYOW
Chicago Midway
Sun 7/27
9:40 am-6:53 pm
1 stop8h 13m
Ottawa
Sun 8/3
8:35 am-8:45 am
1 stop25h 10m
$408
St. LouisOttawa
STL - YOW
STLYOW
Lambert-St Louis
Wed 7/9
11:24 am-5:06 pm
1 stop28h 42m
Ottawa
Wed 7/16
11:00 am-9:52 am
2 stops23h 52m
$415
ChicagoOttawa
ORD - YOW
ORDYOW
Chicago O'Hare Intl
Fri 7/25
6:15 pm-9:35 pm
Nonstop2h 20m
Ottawa
Fri 8/1
5:25 pm-6:53 pm
Nonstop2h 28m
$467
ChicagoOttawa
ORD - YOW
ORDYOW
Chicago O'Hare Intl
Thu 8/14
5:30 pm-6:45 am
1 stop12h 15m
Ottawa
Sun 8/17
6:00 am-4:44 pm
1 stop11h 44m
$480
ChicagoOttawa
ORD - YOW
ORDYOW
Chicago O'Hare Intl
Tue 7/8
11:05 am-12:22 am
2 stops12h 17m
Ottawa
Sat 7/12
5:55 am-12:50 pm
2 stops7h 55m
$743
ChicagoOttawa
MDW - YOW
MDWYOW
Chicago Midway
Tue 7/8
6:00 am-12:22 am
2 stops17h 22m
Ottawa
Sat 7/12
5:55 am-12:29 pm
2 stops7h 34m
$743
St. LouisOttawa
STL - YOW
STLYOW
Lambert-St Louis
Sun 7/6
9:15 am-5:05 pm
1 stop6h 50m
Ottawa
Thu 7/10
2:40 pm-8:50 pm
1 stop7h 10m
$746
Showing 1-10 of 23 results
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 $428). 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 June 12, 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 June 12, 2025.
The most flights from USIL to YOW are scheduled on a Monday (13 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 on average).
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 2.0 - 3.7 inches per month. June is typically the wettest month, when rainfall can reach 3.7 in. February is typically the driest time to visit Ottawa when rainfall is around 2.0 in.
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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 F).
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 June 12, 2025.
To help decide which airline to fly from Illinois to Ottawa, see what other customers have to say about Porter Airlines, Delta and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Crew
8.7
Overall
8.0
Comfort
8.1
Boarding
8.2
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
Entertainment
7.0
Crew
8.7
Overall
8.0
Comfort
8.1
Boarding
8.2
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
Entertainment
7.0
Crew
8.7
Overall
8.0
Comfort
8.1
Boarding
8.2
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
Entertainment
7.0
Crew
8.7
Overall
8.0
Comfort
8.1
Boarding
8.2
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
Entertainment
7.0
Crew
8.7
Overall
8.0
Comfort
8.1
Boarding
8.2
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
Entertainment
7.0
Crew
8.7
Overall
8.0
Comfort
8.1
Boarding
8.2
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
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.
Traveling to a place near Illinois?
Book flights to Illinois if you plan to visit one of these locationsGatineau
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.
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 June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$231 | Average$368 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$236 | Average$639 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$250 | Average$430 | FlexibilityNo cancel fee | On-time52% |