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Cheap flights from Ottawa to Chicago from C$ 202

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 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 a.m. - 8:30 p.m.
YOW
-
ORD
14h 30m1 stop
Multiple Airlines Logo
7:21 p.m. - 2:58 p.m.
ORD
-
YOW
18h 37m1 stop
C$ 326Multiple Airlines
Thu, 8 Jan - Fri, 9 Jan
Multiple Airlines Logo
7:00 a.m. - 10:36 p.m.
YOW
-
ORD
16h 36m1 stop
Multiple Airlines Logo
8:43 p.m. - 5:25 p.m.
ORD
-
YOW
19h 42m1 stop
C$ 359Multiple Airlines
Thu, 22 Jan - Sun, 25 Jan
Multiple Airlines Logo
9:40 a.m. - 12:42 a.m.
YOW
-
ORD
16h 02m2 stops
Multiple Airlines Logo
7:21 p.m. - 2:58 p.m.
ORD
-
YOW
18h 37m1 stop
C$ 375Multiple Airlines
Thu, 8 Jan - Fri, 9 Jan
Multiple Airlines Logo
10:00 a.m. - 4:58 p.m.
YOW
-
ORD
31h 58m2 stops
Multiple Airlines Logo
7:21 p.m. - 2:58 p.m.
ORD
-
YOW
18h 37m1 stop
C$ 380Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
4:20 p.m. - 2:39 p.m.
YOW
-
ORD
23h 19m1 stop
Multiple Airlines Logo
7:20 a.m. - 5:25 p.m.
ORD
-
YOW
9h 05m1 stop
C$ 383Multiple Airlines
Fri, 16 Jan - Mon, 19 Jan
Multiple Airlines Logo
9:30 a.m. - 1:13 p.m.
YOW
-
ORD
28h 43m1 stop
Multiple Airlines Logo
7:21 p.m. - 2:58 p.m.
ORD
-
YOW
18h 37m1 stop
C$ 384Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
9:40 a.m. - 10:46 p.m.
YOW
-
ORD
14h 06m2 stops
Multiple Airlines Logo
8:43 p.m. - 5:25 p.m.
ORD
-
YOW
19h 42m1 stop
C$ 388Multiple Airlines
Thu, 22 Jan - Sun, 25 Jan
Multiple Airlines Logo
4:20 p.m. - 12:08 p.m.
YOW
-
ORD
20h 48m2 stops
Multiple Airlines Logo
7:20 a.m. - 5:25 p.m.
ORD
-
YOW
9h 05m1 stop
C$ 413Multiple Airlines
Fri, 16 Jan - Mon, 19 Jan
Multiple Airlines Logo
9:30 a.m. - 11:46 p.m.
YOW
-
ORD
15h 16m2 stops
Multiple Airlines Logo
7:20 a.m. - 5:25 p.m.
ORD
-
YOW
9h 05m1 stop
C$ 427Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
Multiple Airlines Logo
4:35 p.m. - 8:31 a.m.
YOW
-
ORD
16h 56m2 stops
Multiple Airlines Logo
12:48 p.m. - 12:25 a.m.
ORD
-
YOW
10h 37m1 stop
C$ 456Multiple Airlines
Mon, 5 Jan - Thu, 8 Jan

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
30 Apr
YOW6:00 a.m.Ottawa
11h 43m
1 stop
ORD4:43 p.m.Chicago O'Hare Intl
3 May
ORD5:30 p.m.Chicago O'Hare Intl
21h 48m
2 stops
YOW4:18 p.m.Ottawa
C$ 588
Find similar
WestJet
30 Apr
YOW6:00 a.m.Ottawa
11h 43m
1 stop
ORD4:43 p.m.Chicago O'Hare Intl
3 May
ORD5:30 p.m.Chicago O'Hare Intl
12h 25m
1 stop
YOW6:55 a.m.Ottawa
C$ 606
Find similar
WestJet
12 Mar
YOW5:40 a.m.Ottawa
15h 57m
2 stops
ORD8:37 p.m.Chicago O'Hare Intl
15 Mar
ORD11:15 a.m.Chicago O'Hare Intl
12h 24m
2 stops
YOW12:39 a.m.Ottawa
C$ 730
Find similar

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

Our best United Airlines deals on Ottawa to Chicago O'Hare Intl Airport flight tickets
United Airlines
24 Jan
YOW5:11 p.m.Ottawa
2h 44m
ORD6:55 p.m.Chicago O'Hare Intl
31 Jan
ORD6:00 p.m.Chicago O'Hare Intl
2h 18m
YOW9:18 p.m.Ottawa
C$ 726
Find similar
United Airlines
26 Jan
YOW6:20 a.m.Ottawa
2h 45m
ORD8:05 a.m.Chicago O'Hare Intl
29 Jan
ORD6:00 p.m.Chicago O'Hare Intl
2h 18m
YOW9:18 p.m.Ottawa
C$ 737
Find similar
United Airlines
26 Jan
YOW3:10 p.m.Ottawa
6h 03m
1 stop
ORD8:13 p.m.Chicago O'Hare Intl
2 Feb
ORD1:00 p.m.Chicago O'Hare Intl
9h 54m
1 stop
YOW11:54 p.m.Ottawa
C$ 744
Find similar

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 14 December 2025.
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

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Thu 8/1

7:00 a.m.-8:30 p.m.

1 stop14h 30m

Chicago O'Hare Intl

Fri 9/1

7:21 p.m.-2:58 p.m.

1 stop18h 37m

C$ 326

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Thu 22/1

7:00 a.m.-10:36 p.m.

1 stop16h 36m

Chicago O'Hare Intl

Sun 25/1

8:43 p.m.-5:25 p.m.

1 stop19h 42m

C$ 359

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Thu 8/1

9:40 a.m.-12:42 a.m.

2 stops16h 02m

Chicago O'Hare Intl

Fri 9/1

7:21 p.m.-2:58 p.m.

1 stop18h 37m

C$ 375

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Mon 26/1

10:00 a.m.-4:58 p.m.

2 stops31h 58m

Chicago O'Hare Intl

Mon 2/2

7:21 p.m.-2:58 p.m.

1 stop18h 37m

C$ 380

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Fri 16/1

4:20 p.m.-2:39 p.m.

1 stop23h 19m

Chicago O'Hare Intl

Mon 19/1

7:20 a.m.-5:25 p.m.

1 stop9h 05m

C$ 383

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Mon 26/1

9:30 a.m.-1:13 p.m.

1 stop28h 43m

Chicago O'Hare Intl

Mon 2/2

7:21 p.m.-2:58 p.m.

1 stop18h 37m

C$ 384

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Thu 22/1

9:40 a.m.-10:46 p.m.

2 stops14h 06m

Chicago O'Hare Intl

Sun 25/1

8:43 p.m.-5:25 p.m.

1 stop19h 42m

C$ 388

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Fri 16/1

4:20 p.m.-12:08 p.m.

2 stops20h 48m

Chicago O'Hare Intl

Mon 19/1

7:20 a.m.-5:25 p.m.

1 stop9h 05m

C$ 413

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Sat 24/1

9:30 a.m.-11:46 p.m.

2 stops15h 16m

Chicago O'Hare Intl

Sat 31/1

7:20 a.m.-5:25 p.m.

1 stop9h 05m

C$ 427

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Mon 5/1

4:35 p.m.-8:31 a.m.

2 stops16h 56m

Chicago O'Hare Intl

Thu 8/1

12:48 p.m.-12:25 a.m.

1 stop10h 37m

C$ 456

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?

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

In general, September 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$ 471. The month of October is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Ottawa averaging around C$ 471.

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 Saturday when prices can be found for as low as C$ 746. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, 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$ 897.

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$ 733. 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$ 857 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 flights?

There are 4 cabin classes available to choose from on Ottawa to Chicago O'Hare Intl 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$ 280

Fastest flight time

2h 08m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Ottawa in the past 72 hours is C$ 280. The best round-trip flight deal from Ottawa to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is C$ 523.
The fastest flight from Ottawa to Chicago O'Hare Intl Airport takes 2h 08m
Direct flights go from Ottawa to Chicago O'Hare Intl Airport every day.
Search flight deals

  • 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 08m.

  • 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
United AirlinesPriceFrom C$ 463Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 502Free CancellationRating
7.1
10,522 reviews
Search Air Canada flights

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

    United Airlines operates around 11 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$ 670, but momondo users have found United Airlines deals from Ottawa to Chicago O'Hare Intl Airport from as low as C$ 463 round-trip. United Airlines has been scored 7.4/10 in 9,094 reviews.

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

    Air Canada (7.1/10 from 10,522 reviews) operates around 17 flights from Ottawa to Chicago O'Hare Intl Airport in any given week. The average Air Canada airfare for this route is around C$ 649, with deals from around C$ 502 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
Rosemont
Hoffman Estates
Northbrook
Tinley Park
Munster
Skokie
Hammond
Harvey
Naperville
Glenview
Great Lakes
Wheeling
Elmhurst
Harvard
Merrillville
Elk Grove Village
Oak Brook
Kenosha

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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