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$146+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
abr. 2 — abr. 91
mié. 4/2
mié. 4/9
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 marzo 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$351
(FlightHub)

One-way from

$151
(Mytrip)

Popular in

November

Cheapest in

July

Average price

$528

Good round-trip deal

$252 or less

Good one-way deal

$294 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. 5% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in March 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 marzo 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
mié. 4/305:55 amORD - YOW
1 stop9h 00mMultiple Airlines
mar. 5/1311:00 amYOW - ORD
1 stop10h 07mMultiple Airlines
Deal found 3/25$300
This Trip.com deal was found by Cheapflights users on 3/25. 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.
jue. 4/2411:15 amMDW - YOW
1 stop4h 54mPorter Airlines
lun. 5/512:35 pmYOW - MDW
1 stop5h 19mPorter Airlines
Deal found 3/25$336
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
mié. 4/3011:15 amMDW - YOW
1 stop12h 07mMultiple Airlines
mar. 5/1312:35 pmYOW - MDW
1 stop4h 49mMultiple Airlines
Deal found 3/25$382
This Gotogate deal was found by Cheapflights users on 3/26. 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.
mar. 5/610:53 amORD - YOW
Nonstop2h 11mAir Canada
mar. 5/136:15 pmYOW - ORD
1 stop6h 29mAir Canada
Deal found 3/26$469
This oojo deal was found by Cheapflights users on 3/26. 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.
dom. 6/151:40 pmORD - YOW
1 stop25h 40mWestJet
vie. 6/206:10 amYOW - ORD
1 stop31h 29mWestJet
Deal found 3/26$513
This United Airlines deal was found by Cheapflights users on 3/27. 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.
jue. 4/249:05 pmORD - YOW
1 stop11h 53mUnited Airlines
jue. 5/12:45 pmYOW - ORD
1 stop9h 30mUnited Airlines
Deal found 3/27$540
This United Airlines deal was found by Cheapflights users on 3/27. 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.
jue. 4/243:40 pmSTL - YOW
2 stops17h 18mUnited Airlines
jue. 5/17:29 pmYOW - STL
2 stops16h 34mUnited Airlines
Deal found 3/27$688
This Air Canada deal was found by Cheapflights users on 3/27. 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.
jue. 7/31:30 pmSTL - YOW
1 stop5h 45mAir Canada
lun. 7/72:25 pmYOW - STL
1 stop6h 35mAir Canada
Deal found 3/27$809
This Delta deal was found by Cheapflights users on 3/26. 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.
mar. 5/69:20 amMDW - YOW
2 stops14h 02mDelta
mar. 5/135:55 amYOW - MDW
2 stops13h 50mDelta
Deal found 3/26$879
This WestJet deal was found by Cheapflights users on 3/25. 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.
vie. 4/2510:20 amMDW - YOW
2 stops12h 49mWestJet
dom. 5/46:00 amYOW - MDW
2 stops17h 22mWestJet
Deal found 3/25$1,122

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 marzo 28, 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

mié. 4/30

5:55 am-3:55 pm

1 stop9h 00m

Ottawa

mar. 5/13

11:00 am-8:07 pm

1 stop10h 07m

$300

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

jue. 4/24

11:15 am-5:09 pm

1 stop4h 54m

Ottawa

lun. 5/5

12:35 pm-4:54 pm

1 stop5h 19m

$336

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

mié. 4/30

11:15 am-12:22 am

1 stop12h 07m

Ottawa

mar. 5/13

12:35 pm-4:24 pm

1 stop4h 49m

$382

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

mar. 5/6

10:53 am-2:04 pm

Nonstop2h 11m

Ottawa

mar. 5/13

6:15 pm-11:44 pm

1 stop6h 29m

$469

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

dom. 6/15

1:40 pm-4:20 pm

1 stop25h 40m

Ottawa

vie. 6/20

6:10 am-12:39 pm

1 stop31h 29m

$513

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

jue. 4/24

9:05 pm-9:58 am

1 stop11h 53m

Ottawa

jue. 5/1

2:45 pm-11:15 pm

1 stop9h 30m

$540

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

jue. 4/24

3:40 pm-9:58 am

2 stops17h 18m

Ottawa

jue. 5/1

7:29 pm-11:03 am

2 stops16h 34m

$688

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

jue. 7/3

1:30 pm-8:15 pm

1 stop5h 45m

Ottawa

lun. 7/7

2:25 pm-8:00 pm

1 stop6h 35m

$809

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

mar. 5/6

9:20 am-12:22 am

2 stops14h 02m

Ottawa

mar. 5/13

5:55 am-6:45 pm

2 stops13h 50m

$879

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

vie. 4/25

10:20 am-12:09 am

2 stops12h 49m

Ottawa

dom. 5/4

6:00 am-10:22 pm

2 stops17h 22m

$1,122

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 17 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 May is currently the most expensive (average of $466). 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 marzo 28, 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.

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 marzo 28, 2025.
To help decide which airline to fly from Illinois to Ottawa, see what other customers have to say about Delta, Porter Airlines 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.
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,785 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
8,986 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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%), Emirates (89%) or Republic Airways (89%) 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 $423, our data shows the cheapest flight currently is $80. When looking at the most popular route, (Chicago O'Hare Intl - Ottawa), you can expect to pay $308 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 May is currently the most expensive (average of $466). 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 Illinois?

Book flights to Illinois if you plan to visit one of these locations
Gatineau
Brockville
Pembroke
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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Seattle to Pierre Elliott Trudeau Intl flights
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Los Angeles to Toronto Island flights
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O'Hare Intl to Toronto Island flights

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 marzo 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$236Average$531FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$236Average$702FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$352Average$463FlexibilityNo cancel feeOn-time52%
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