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Cheap flights from Ottawa to Chicago from C$ 283

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 25/8. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ottawa to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:55 a.m. - 7:48 p.m.
YOW
-
ORD
13h 53m
1 stop
Multiple Airlines Logo
2:15 p.m. - 12:20 a.m.
ORD
-
YOW
9h 05m
1 stop
C$ 511Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
6:55 a.m. - 8:12 p.m.
YOW
-
ORD
14h 17m
2 stops
Multiple Airlines Logo
3:40 p.m. - 9:15 a.m.
ORD
-
YOW
16h 35m
2 stops
C$ 513Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
6:55 a.m. - 7:48 p.m.
YOW
-
ORD
13h 53m
1 stop
Multiple Airlines Logo
2:15 p.m. - 12:20 a.m.
ORD
-
YOW
9h 05m
1 stop
C$ 516Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
6:55 a.m. - 2:55 p.m.
YOW
-
ORD
9h 00m
1 stop
Multiple Airlines Logo
5:35 p.m. - 12:20 a.m.
ORD
-
YOW
5h 45m
1 stop
C$ 527Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
6:55 a.m. - 8:12 p.m.
YOW
-
ORD
14h 17m
2 stops
Multiple Airlines Logo
9:55 a.m. - 5:35 p.m.
ORD
-
YOW
6h 40m
1 stop
C$ 528Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
6:55 a.m. - 8:12 p.m.
YOW
-
ORD
14h 17m
2 stops
Multiple Airlines Logo
11:05 a.m. - 12:20 a.m.
ORD
-
YOW
12h 15m
2 stops
C$ 540Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
6:55 a.m. - 8:12 p.m.
YOW
-
ORD
14h 17m
2 stops
Multiple Airlines Logo
9:55 a.m. - 5:35 p.m.
ORD
-
YOW
6h 40m
1 stop
C$ 542Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
6:55 a.m. - 2:55 p.m.
YOW
-
ORD
9h 00m
1 stop
Multiple Airlines Logo
2:15 p.m. - 12:20 a.m.
ORD
-
YOW
9h 05m
1 stop
C$ 547Multiple Airlines
Mon, 7 Sep - Mon, 14 Sep
Multiple Airlines Logo
6:55 a.m. - 2:55 p.m.
YOW
-
ORD
9h 00m
1 stop
Multiple Airlines Logo
11:05 a.m. - 12:20 a.m.
ORD
-
YOW
12h 15m
2 stops
C$ 552Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
6:55 a.m. - 2:55 p.m.
YOW
-
ORD
9h 00m
1 stop
Multiple Airlines Logo
9:55 a.m. - 12:20 a.m.
ORD
-
YOW
13h 25m
1 stop
C$ 554Multiple Airlines
Mon, 7 Sep - Mon, 14 Sep

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American Airlines flights from Ottawa to Chicago O'Hare Intl Airport

Our best American Airlines deals on Ottawa to Chicago O'Hare Intl Airport flight tickets
American Airlines
19 Sep
YOW7:00 a.m.Ottawa
6h 45m
1 stop
ORD12:45 p.m.Chicago O'Hare Intl
22 Sep
ORD8:03 a.m.Chicago O'Hare Intl
5h 52m
1 stop
YOW2:55 p.m.Ottawa
C$ 569
American Airlines
8 Sep
YOW8:40 a.m.Ottawa
6h 40m
1 stop
ORD2:20 p.m.Chicago O'Hare Intl
15 Sep
ORD8:03 a.m.Chicago O'Hare Intl
5h 52m
1 stop
YOW2:55 p.m.Ottawa
C$ 578
American Airlines
11 Sep
YOW8:40 a.m.Ottawa
6h 40m
1 stop
ORD2:20 p.m.Chicago O'Hare Intl
13 Sep
ORD8:03 a.m.Chicago O'Hare Intl
5h 52m
1 stop
YOW2:55 p.m.Ottawa
C$ 588

WestJet flights from Ottawa to Chicago O'Hare Intl Airport

Our best WestJet deals on Ottawa to Chicago O'Hare Intl Airport flight tickets
WestJet
11 Sep
YOW7:20 a.m.Ottawa
10h 20m
1 stop
ORD4:40 p.m.Chicago O'Hare Intl
13 Sep
ORD5:30 p.m.Chicago O'Hare Intl
17h 05m
2 stops
YOW11:35 a.m.Ottawa
C$ 621
WestJet
10 Sep
YOW7:20 a.m.Ottawa
10h 20m
1 stop
ORD4:40 p.m.Chicago O'Hare Intl
17 Sep
ORD5:30 p.m.Chicago O'Hare Intl
11h 05m
1 stop
YOW5:35 a.m.Ottawa
C$ 638
WestJet
4 Sep
YOW7:20 a.m.Ottawa
10h 20m
1 stop
ORD4:40 p.m.Chicago O'Hare Intl
8 Sep
ORD5:30 p.m.Chicago O'Hare Intl
11h 05m
1 stop
YOW5:35 a.m.Ottawa
C$ 648

momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to Chicago O'Hare Intl Airport 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 27 July 2026.
Use the filters below to find and compare flights from Ottawa to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 8/9

6:55 a.m.-7:48 p.m.

1 stop13h 53m

Chicago O'Hare Intl

Tue 15/9

2:15 p.m.-12:20 a.m.

1 stop9h 05m

C$ 511

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 9/9

6:55 a.m.-8:12 p.m.

2 stops14h 17m

Chicago O'Hare Intl

Wed 16/9

3:40 p.m.-9:15 a.m.

2 stops16h 35m

C$ 513

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 8/9

6:55 a.m.-7:48 p.m.

1 stop13h 53m

Chicago O'Hare Intl

Tue 15/9

2:15 p.m.-12:20 a.m.

1 stop9h 05m

C$ 516
Quickest round-trip

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 9/9

6:55 a.m.-2:55 p.m.

1 stop9h 00m

Chicago O'Hare Intl

Wed 16/9

5:35 p.m.-12:20 a.m.

1 stop5h 45m

C$ 527

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 8/9

6:55 a.m.-8:12 p.m.

2 stops14h 17m

Chicago O'Hare Intl

Tue 15/9

9:55 a.m.-5:35 p.m.

1 stop6h 40m

C$ 528

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 8/9

6:55 a.m.-8:12 p.m.

2 stops14h 17m

Chicago O'Hare Intl

Tue 15/9

11:05 a.m.-12:20 a.m.

2 stops12h 15m

C$ 540

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 8/9

6:55 a.m.-8:12 p.m.

2 stops14h 17m

Chicago O'Hare Intl

Tue 15/9

9:55 a.m.-5:35 p.m.

1 stop6h 40m

C$ 542

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Mon 7/9

6:55 a.m.-2:55 p.m.

1 stop9h 00m

Chicago O'Hare Intl

Mon 14/9

2:15 p.m.-12:20 a.m.

1 stop9h 05m

C$ 547

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 8/9

6:55 a.m.-2:55 p.m.

1 stop9h 00m

Chicago O'Hare Intl

Tue 15/9

11:05 a.m.-12:20 a.m.

2 stops12h 15m

C$ 552

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Mon 7/9

6:55 a.m.-2:55 p.m.

1 stop9h 00m

Chicago O'Hare Intl

Mon 14/9

9:55 a.m.-12:20 a.m.

1 stop13h 25m

C$ 554

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 O'Hare Intl Airport

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 typical price of a round-trip flight between Ottawa and Chicago O'Hare Intl Airport?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 876 to C$ 1,147.
The lowest price recently found on this route was C$ 511.

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

In general, October is the cheapest month to fly from Ottawa to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 488. The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Ottawa averaging around C$ 531.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as C$ 761. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Ottawa to Chicago O'Hare Intl Airport for around C$ 1,011.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

In the afternoon is the cheapest time of day to fly from Ottawa to Chicago O'Hare Intl Airport when you can find flight prices for as low as C$ 756. Flying to Chicago O'Hare Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 853 on average. Flights to Chicago O'Hare Intl Airport from Ottawa in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Ottawa to Chicago O'Hare Intl flight route?

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

What cabin class options are available on Ottawa to Chicago O'Hare Intl Airport flights?

There are 4 cabin classes available to choose from on Ottawa to Chicago O'Hare Intl Airport 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 O'Hare Intl Airport flights?

You could potentially save up to 37% on your flight if you consider stops on a Ottawa to Chicago O'Hare Intl Airport flight.

When to book flights from Ottawa to Chicago O'Hare Intl Airport

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

Cheap Ottawa to Chicago O'Hare Intl Airport (YOW to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Chicago O'Hare Intl Airport

Best price found

C$ 372

Fastest flight time

2h 19m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Ottawa in the past 72 hours is C$ 372. The best round-trip flight deal from Ottawa to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is C$ 795.
The fastest flight from Ottawa to Chicago O'Hare Intl Airport takes 2h 19m
Direct flights go from Ottawa to Chicago O'Hare Intl Airport every day.
Search flight deals

Frequently asked questions about flying from Ottawa to Chicago O'Hare Intl Airport

  • How far is Ottawa to Chicago O'Hare Intl by plane?

    The straight-line distance from Ottawa to Chicago O'Hare Intl is 1051.1 km. In terms of flight time, this usually takes a little over 2h 19m.

  • When did momondo last update prices for flights from Ottawa Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Ottawa Airport to Chicago O'Hare Intl Airport are updated daily.

  • How many operators does momondo search for flights from Ottawa Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Ottawa Airport to Chicago O'Hare Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ottawa to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Ottawa to Chicago O'Hare Intl Airport?

Best airlines flying from Ottawa to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Ottawa to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 422Free CancellationRating
7.1
11,391 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 481Free CancellationRating
7.4
10,042 reviews
Search United Airlines flights

  • United Airlines Flights From Ottawa to Chicago O'Hare Intl Airport

    United Airlines operates around 21 flights from Ottawa to Chicago O'Hare Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 778, but momondo users have found United Airlines deals from Ottawa to Chicago O'Hare Intl Airport from as low as C$ 481 round-trip. United Airlines has been scored 7.4/10 in 10,041 reviews.

  • Air Canada Flights From Ottawa to Chicago O'Hare Intl Airport

    Air Canada (7.1/10 from 11,387 reviews) operates around 21 flights from Ottawa to Chicago O'Hare Intl Airport in any given week. The average Air Canada airfare for this route is around C$ 999, with deals from around C$ 422 rare but found on momondo. Referenced prices are for round-trip Ottawa to Chicago O'Hare Intl Airport flight 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
Schaumburg
Glenview
Waukegan
Rosemont
Des Plaines
Merrillville
Kenosha
Northbrook
Skokie
Tinley Park
Evanston
Downers Grove
Great Lakes
Hammond
Harvey
Naperville
Munster
Hoffman Estates
Elmhurst
Valparaiso

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?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ottawa to Chicago.

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

Of course. momondo tracks the price of Ottawa to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Chicago O'Hare Intl Airport trip

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