Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ottawa to Chicago from $176

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 6/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ottawa to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
7:20 am - 4:40 pm
YOW
-
ORD
10h 20m
1 stop
WestJet Logo
5:30 pm - 5:35 am
ORD
-
YOW
11h 05m
1 stop
$391WestJet
Wed, May 20 - Mon, May 25
American Airlines Logo
7:00 am - 12:43 pm
YOW
-
ORD
6h 43m
1 stop
American Airlines Logo
8:08 am - 2:30 pm
ORD
-
YOW
5h 22m
1 stop
$400American Airlines
Wed, May 20 - Mon, May 25
American Airlines Logo
8:40 am - 2:17 pm
YOW
-
ORD
6h 37m
1 stop
American Airlines Logo
8:08 am - 2:30 pm
ORD
-
YOW
5h 22m
1 stop
$401American Airlines
Thu, May 21 - Mon, May 25
Multiple Airlines Logo
6:55 am - 1:10 pm
YOW
-
ORD
7h 15m
1 stop
Multiple Airlines Logo
9:55 am - 12:25 am
ORD
-
YOW
13h 30m
1 stop
$418Multiple Airlines
Sat, Jun 13 - Sun, Jun 14
Multiple Airlines Logo
7:00 am - 11:13 pm
YOW
-
ORD
17h 13m
2 stops
Multiple Airlines Logo
12:54 pm - 5:37 pm
ORD
-
YOW
27h 43m
1 stop
$420Multiple Airlines
Wed, May 27 - Fri, Jun 5
Multiple Airlines Logo
2:20 pm - 6:38 pm
YOW
-
ORD
5h 18m
1 stop
Multiple Airlines Logo
5:05 am - 8:05 pm
ORD
-
YOW
14h 00m
2 stops
$423Multiple Airlines
Mon, Jun 1 - Tue, Jun 2
Multiple Airlines Logo
2:20 pm - 6:38 pm
YOW
-
ORD
5h 18m
1 stop
Multiple Airlines Logo
5:06 pm - 12:54 pm
ORD
-
YOW
18h 48m
2 stops
$424Multiple Airlines
Mon, Jun 15 - Fri, Jun 19
Multiple Airlines Logo
7:20 am - 4:40 pm
YOW
-
ORD
10h 20m
1 stop
Multiple Airlines Logo
5:30 pm - 12:25 am
ORD
-
YOW
29h 55m
2 stops
$425Multiple Airlines
Sat, May 23 - Sun, May 24
Multiple Airlines Logo
9:05 am - 6:38 pm
YOW
-
ORD
10h 33m
1 stop
Multiple Airlines Logo
5:06 pm - 5:37 pm
ORD
-
YOW
23h 31m
1 stop
$426Multiple Airlines
Mon, Jun 15 - Fri, Jun 19
Multiple Airlines Logo
7:00 am - 10:14 pm
YOW
-
ORD
16h 14m
2 stops
Multiple Airlines Logo
5:30 pm - 1:00 pm
ORD
-
YOW
18h 30m
1 stop
$430Multiple Airlines
Wed, May 20 - Mon, May 25

Air Canada flights from Ottawa to Chicago O'Hare Intl Airport

Our best Air Canada deals on Ottawa to Chicago O'Hare Intl Airport flight tickets
Air Canada
Jun 4
YOW5:05 amOttawa
4h 55m
1 stop
ORD9:00 amChicago O'Hare Intl
Jun 7
ORD7:25 amChicago O'Hare Intl
8h 06m
1 stop
YOW4:31 pmOttawa
$493
Air Canada
May 15
YOW10:05 pmOttawa
11h 55m
1 stop
ORD9:00 amChicago O'Hare Intl
May 25
ORD8:35 pmChicago O'Hare Intl
4h 01m
1 stop
YOW1:36 amOttawa
$661
Air Canada
May 13
YOW9:10 amOttawa
6h 43m
2 stops
ORD2:53 pmChicago O'Hare Intl
May 28
ORD8:35 pmChicago O'Hare Intl
4h 01m
1 stop
YOW1:36 amOttawa
$707

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
May 20
YOW7:20 amOttawa
10h 20m
1 stop
ORD4:40 pmChicago O'Hare Intl
May 25
ORD5:30 pmChicago O'Hare Intl
11h 05m
1 stop
YOW5:35 amOttawa
$391
WestJet
Aug 19
YOW8:15 pmOttawa
21h 25m
1 stop
ORD4:40 pmChicago O'Hare Intl
Aug 24
ORD5:30 pmChicago O'Hare Intl
11h 05m
1 stop
YOW5:35 amOttawa
$455
WestJet
May 12
YOW6:55 amOttawa
10h 39m
2 stops
ORD4:34 pmChicago O'Hare Intl
May 27
ORD5:30 pmChicago O'Hare Intl
11h 05m
1 stop
YOW5:35 amOttawa
$732

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 832,500 searches. Data last updated May 2, 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

Wed 5/20

7:20 am-4:40 pm

1 stop10h 20m

Chicago O'Hare Intl

Mon 5/25

5:30 pm-5:35 am

1 stop11h 05m

$391

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 5/20

7:00 am-12:43 pm

1 stop6h 43m

Chicago O'Hare Intl

Mon 5/25

8:08 am-2:30 pm

1 stop5h 22m

$400
Quickest round-trip

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Thu 5/21

8:40 am-2:17 pm

1 stop6h 37m

Chicago O'Hare Intl

Mon 5/25

8:08 am-2:30 pm

1 stop5h 22m

$401

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Sat 6/13

6:55 am-1:10 pm

1 stop7h 15m

Chicago O'Hare Intl

Sun 6/14

9:55 am-12:25 am

1 stop13h 30m

$418

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 5/27

7:00 am-11:13 pm

2 stops17h 13m

Chicago O'Hare Intl

Fri 6/5

12:54 pm-5:37 pm

1 stop27h 43m

$420

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Mon 6/1

2:20 pm-6:38 pm

1 stop5h 18m

Chicago O'Hare Intl

Tue 6/2

5:05 am-8:05 pm

2 stops14h 00m

$423

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Mon 6/15

2:20 pm-6:38 pm

1 stop5h 18m

Chicago O'Hare Intl

Fri 6/19

5:06 pm-12:54 pm

2 stops18h 48m

$424

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Sat 5/23

7:20 am-4:40 pm

1 stop10h 20m

Chicago O'Hare Intl

Sun 5/24

5:30 pm-12:25 am

2 stops29h 55m

$425

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Mon 6/15

9:05 am-6:38 pm

1 stop10h 33m

Chicago O'Hare Intl

Fri 6/19

5:06 pm-5:37 pm

1 stop23h 31m

$426

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 5/20

7:00 am-10:14 pm

2 stops16h 14m

Chicago O'Hare Intl

Mon 5/25

5:30 pm-1:00 pm

1 stop18h 30m

$430

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Ottawa averaging around $342.

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 $527. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Ottawa because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $735.

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

Flying to Chicago O'Hare Intl Airport from Ottawa in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $523 when looking at flights departing in the afternoon. Try not to purchase tickets in the morning because they tend to be around $628. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Can stopping save me money on Ottawa to Chicago O'Hare Intl Airport flights?

You could potentially save up to 44% 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

$295

Fastest flight time

2h 20m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Ottawa in the past 72 hours is $295. The best round-trip flight deal from Ottawa to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $437.
The fastest flight from Ottawa to Chicago O'Hare Intl Airport takes 2h 20m
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?

    Ottawa and Chicago O'Hare Intl are 653.1 mi apart from one another. A reasonable flight in good conditions will take 2h 20m.

  • 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 required for your trip to Chicago O'Hare Intl Airport 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 O'Hare Intl Airport. 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 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 $324Free CancellationRating
7.4
9,680 reviews
Search United Airlines flights

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

    United Airlines is one of the most popular airlines flying from Ottawa to Chicago O'Hare Intl Airport, operating 21 flights/week on average for this route. A good United Airlines flight deal for Ottawa to Chicago O'Hare Intl Airport starts from $324 round-trip, up to an average price of $580. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
South Haven
Rockford
Merrillville
Gurnee
Rosemont
Naperville
New Buffalo
Orland Park
Oak Brook
Kenosha
Joliet
Aurora
Janesville
Racine
Hammond
Tinley Park
Elgin
Evanston

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 recognisable 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?

Yes. momondo enables you to select and highlight flights to Chicago from Ottawa with this policy.

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

momondo provides multiple filters to help you find the best flight to Chicago from Ottawa. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 6/1
Mon 6/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chicago