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Cheap flights from Ottawa to Chicago from C$ 218

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Chicago departing on 25/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:55 p.m. - 12:40 a.m.
YOW
-
ORD
9h 45m
1 stop
Multiple Airlines Logo
6:01 p.m. - 5:25 p.m.
ORD
-
YOW
22h 24m
1 stop
C$ 390Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Multiple Airlines Logo
11:00 a.m. - 12:40 a.m.
YOW
-
ORD
14h 40m
2 stops
Multiple Airlines Logo
6:01 p.m. - 5:25 p.m.
ORD
-
YOW
22h 24m
1 stop
C$ 394Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Multiple Airlines Logo
3:55 p.m. - 12:40 a.m.
YOW
-
ORD
9h 45m
1 stop
Multiple Airlines Logo
6:01 p.m. - 5:25 p.m.
ORD
-
YOW
22h 24m
1 stop
C$ 396Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Multiple Airlines Logo
3:55 p.m. - 12:40 a.m.
YOW
-
ORD
9h 45m
1 stop
Multiple Airlines Logo
6:01 p.m. - 5:25 p.m.
ORD
-
YOW
22h 24m
1 stop
C$ 404Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Multiple Airlines Logo
3:55 p.m. - 12:40 a.m.
YOW
-
ORD
9h 45m
1 stop
Multiple Airlines Logo
6:10 p.m. - 5:25 p.m.
ORD
-
YOW
22h 15m
2 stops
C$ 420Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Multiple Airlines Logo
3:35 p.m. - 12:22 a.m.
YOW
-
ORD
9h 47m
2 stops
Multiple Airlines Logo
6:01 p.m. - 5:25 p.m.
ORD
-
YOW
22h 24m
1 stop
C$ 422Multiple Airlines
Wed, 25 Mar - Wed, 1 Apr
Multiple Airlines Logo
3:55 p.m. - 12:22 a.m.
YOW
-
ORD
9h 27m
1 stop
Multiple Airlines Logo
6:01 p.m. - 5:25 p.m.
ORD
-
YOW
22h 24m
1 stop
C$ 423Multiple Airlines
Wed, 25 Mar - Wed, 1 Apr
Multiple Airlines Logo
3:35 p.m. - 12:22 a.m.
YOW
-
ORD
9h 47m
2 stops
Multiple Airlines Logo
6:01 p.m. - 5:25 p.m.
ORD
-
YOW
22h 24m
1 stop
C$ 424Multiple Airlines
Sat, 21 Mar - Tue, 24 Mar
Multiple Airlines Logo
3:55 p.m. - 12:40 a.m.
YOW
-
ORD
9h 45m
1 stop
Multiple Airlines Logo
6:51 p.m. - 5:25 p.m.
ORD
-
YOW
21h 34m
1 stop
C$ 426Multiple Airlines
Fri, 27 Feb - Mon, 2 Mar
Multiple Airlines Logo
3:55 p.m. - 1:02 p.m.
YOW
-
MDW
22h 07m
1 stop
Multiple Airlines Logo
9:51 p.m. - 5:17 p.m.
MDW
-
YOW
18h 26m
1 stop
C$ 432Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar

Air Canada flights from Ottawa to Chicago

Our best Air Canada deals on Ottawa to Chicago flight tickets
Air Canada
17 Feb
YOW11:10 a.m.Ottawa
2h 38m
ORD12:48 p.m.Chicago O'Hare Intl
24 Feb
ORD10:00 a.m.Chicago O'Hare Intl
6h 18m
1 stop
YOW5:18 p.m.Ottawa
C$ 1,014
Air Canada
17 Feb
YOW6:20 a.m.Ottawa
2h 40m
ORD8:00 a.m.Chicago O'Hare Intl
24 Feb
ORD7:25 a.m.Chicago O'Hare Intl
2h 01m
YOW10:26 a.m.Ottawa
C$ 1,068
Air Canada
15 Feb
YOW5:11 p.m.Ottawa
2h 41m
ORD6:52 p.m.Chicago O'Hare Intl
22 Feb
ORD6:04 p.m.Chicago O'Hare Intl
2h 14m
YOW9:18 p.m.Ottawa
C$ 1,220

United Airlines flights from Ottawa to Chicago

Our best United Airlines deals on Ottawa to Chicago flight tickets
United Airlines
13 Feb
YOW6:20 a.m.Ottawa
2h 40m
ORD8:00 a.m.Chicago O'Hare Intl
16 Feb
ORD2:30 p.m.Chicago O'Hare Intl
6h 26m
1 stop
YOW9:56 p.m.Ottawa
C$ 1,194
United Airlines
15 Feb
YOW11:10 a.m.Ottawa
2h 38m
ORD12:48 p.m.Chicago O'Hare Intl
22 Feb
ORD6:20 p.m.Chicago O'Hare Intl
4h 34m
1 stop
YOW11:54 p.m.Ottawa
C$ 1,199

momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to Chicago 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, momondo users made 96,600 searches. Data last updated 11 February 2026.
Use the filters below to find and compare flights from Ottawa to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 10/3

3:55 p.m.-12:40 a.m.

1 stop9h 45m

Chicago O'Hare Intl

Tue 17/3

6:01 p.m.-5:25 p.m.

1 stop22h 24m

C$ 390

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 10/3

11:00 a.m.-12:40 a.m.

2 stops14h 40m

Chicago O'Hare Intl

Tue 17/3

6:01 p.m.-5:25 p.m.

1 stop22h 24m

C$ 394

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 10/3

3:55 p.m.-12:40 a.m.

1 stop9h 45m

Chicago O'Hare Intl

Tue 17/3

6:01 p.m.-5:25 p.m.

1 stop22h 24m

C$ 396

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 10/3

3:55 p.m.-12:40 a.m.

1 stop9h 45m

Chicago O'Hare Intl

Tue 17/3

6:01 p.m.-5:25 p.m.

1 stop22h 24m

C$ 404

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 10/3

3:55 p.m.-12:40 a.m.

1 stop9h 45m

Chicago O'Hare Intl

Tue 17/3

6:10 p.m.-5:25 p.m.

2 stops22h 15m

C$ 420

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 25/3

3:35 p.m.-12:22 a.m.

2 stops9h 47m

Chicago O'Hare Intl

Wed 1/4

6:01 p.m.-5:25 p.m.

1 stop22h 24m

C$ 422

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 25/3

3:55 p.m.-12:22 a.m.

1 stop9h 27m

Chicago O'Hare Intl

Wed 1/4

6:01 p.m.-5:25 p.m.

1 stop22h 24m

C$ 423

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Sat 21/3

3:35 p.m.-12:22 a.m.

2 stops9h 47m

Chicago O'Hare Intl

Tue 24/3

6:01 p.m.-5:25 p.m.

1 stop22h 24m

C$ 424

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Fri 27/2

3:55 p.m.-12:40 a.m.

1 stop9h 45m

Chicago O'Hare Intl

Mon 2/3

6:51 p.m.-5:25 p.m.

1 stop21h 34m

C$ 426

OttawaChicago

YOW - MDW

YOWMDW

Ottawa

Mon 9/3

3:55 p.m.-1:02 p.m.

1 stop22h 07m

Chicago Midway

Mon 16/3

9:51 p.m.-5:17 p.m.

1 stop18h 26m

C$ 432

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Ottawa to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Chicago?

The month of June is another great option to travel to Chicago, with average flight prices from Ottawa averaging around C$ 482.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Saturday when prices can be found for as low as C$ 680. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 887. These prices are subject to change though, so be sure to set up a Price Alert for flights to Chicago.

What is the cheapest time of day to depart on your flight to Chicago?

In the afternoon is the cheapest time of day to fly from Ottawa to Chicago when you can find flight prices for as low as C$ 705. Flying to Chicago in the afternoon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Chicago, so prices are often more expensive at around C$ 832 per ticket.

What is the cheapest Ottawa to Chicago flight route?

Fly from Ottawa to Chicago O'Hare Intl for the best Ottawa - Chicago flight prices

What cabin class options are available on Ottawa to Chicago flights?

There are 4 cabin classes available to choose from on Ottawa to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ottawa to Chicago flights?

You could potentially save up to 74% on your flight if you consider stops on a Ottawa to Chicago flight.

How have Ottawa to Chicago flight prices changed over time?

As of February 2026, prices for Ottawa to Chicago flights are approximately 100% more expensive when compared to flights at the same time last year.

When to book flights from Ottawa to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ottawa to Chicago (YOW to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Chicago

Best price found

C$ 343

Fastest flight time

2h 08m

Direct flights

Every day

Airports in Chicago

3 airports
The best one-way flight to Chicago from Ottawa in the past 72 hours is C$ 343. The best round-trip flight deal from Ottawa to Chicago found on momondo in the last 72 hours is C$ 557.
The fastest flight from Ottawa to Chicago takes 2h 08m
Direct flights go from Ottawa to Chicago every day.
There are 3 airports in Chicago. From Ottawa there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

  • How far is Ottawa to Chicago by plane?

    A flight from Ottawa to Chicago will travel around 1035.5 km. In terms of flight time, this usually takes a little over 2h 08m.

  • When did momondo last update prices for flights from Ottawa Airport to Chicago?

    Prices for flights from Ottawa Airport to Chicago refresh daily.

  • How many operators does momondo search for flights from Ottawa Airport to Chicago?

  • How old do you have to be to fly from Ottawa Airport to Chicago?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Ottawa to Chicago?

  • What is the most popular airline from Ottawa to Chicago?

Best airlines flying from Ottawa to Chicago

Compare and see reviews for airlines that fly from Ottawa to Chicago with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom C$ 314Free CancellationRating
7.9
415 reviews
Search Porter Airlines flights
United AirlinesPriceFrom C$ 454Free CancellationRating
7.4
9,273 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 494Free CancellationRating
7.1
10,705 reviews
Search Air Canada flights

  • United Airlines Flights From Ottawa to Chicago

    Across 6 United Airlines flights from Ottawa to Chicago this week, the average price was C$ 619, with the best United Airlines deals starting from C$ 454 round-trip. 9,273 users have rated United Airlines on momondo, with an average score of 7.4/10.

  • Air Canada Flights From Ottawa to Chicago

    Across 10,705 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from Ottawa to Chicago about 6 times each week, with ticket deals ranging from C$ 494 to C$ 664. Price data is based on momondo searches in the last 72 hours.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Munster
Hammond
Merrillville

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Chicago?

Finding the right flight to Chicago from Ottawa is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

Can I find flights from Ottawa to Chicago with flexible booking policies on momondo?

All flight searches from Ottawa to Chicago on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ottawa to Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Ottawa.

I’m not ready to book a flight from Ottawa to Chicago right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ottawa to Chicago flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 25.6 km from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport