How many flights depart from Ottawa to Chicago on average per week?

83 flights are operational weekly from Ottawa to Chicago as of June 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

What is the cheapest airline that flies from Ottawa to Chicago?

Porter Airlines and Air Canada are the most popular carriers operating from Ottawa to Chicago

How many flights depart from Ottawa to Chicago on average per day?

As of June 2026, 11 flights take off from Ottawa and land in Chicago each day. The most common flight departure time for this route is 10:00a.m., with 73% of daily flights taking off at noon.

Which airlines fly to Chicago?

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Chicago from Ottawa according to our data. Air Canada is the first choice among our users, with 59% of people opting to fly with this airline when travelling to Chicago. Keep in mind that there are 4 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Ottawa Airport to Chicago is 2 as of June 2026.

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.

C$ 329 Cheap Flights from Ottawa to Chicago in 2026

Q: What is the typical price of a round-trip flight between Ottawa and Chicago?

Prices are currently low for flights on this route. Typical prices usually range from C$ 738 to C$ 460. The lowest price recently found on this route was C$ 577.

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Find the cheapest flights from Ottawa to Chicago

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:55 a.m. - 9:35 p.m.

YOW

ORD

15h 40m

1 stop

3:20 p.m. - 12:54 p.m.

ORD

YOW

20h 34m

1 stop

C$ 577Multiple Airlines

Thu, 17 Sep - Mon, 21 Sep

6:55 a.m. - 2:35 p.m.

YOW

ORD

8h 40m

1 stop

3:20 p.m. - 8:04 p.m.

ORD

YOW

3h 44m

1 stop

C$ 589Multiple Airlines

Sat, 12 Sep - Wed, 16 Sep

7:20 a.m. - 4:40 p.m.

YOW

ORD

10h 20m

1 stop

3:20 p.m. - 5:54 p.m.

ORD

YOW

25h 34m

1 stop

C$ 603Multiple Airlines

Sat, 5 Sep - Tue, 8 Sep

7:00 a.m. - 12:44 p.m.

YOW

ORD

6h 44m

1 stop

2:38 p.m. - 9:20 p.m.

ORD

YOW

5h 42m

1 stop

C$ 627American Airlines

Fri, 24 Jul - Sun, 26 Jul

8:40 a.m. - 2:22 p.m.

YOW

ORD

6h 42m

1 stop

2:38 p.m. - 9:20 p.m.

ORD

YOW

5h 42m

1 stop

C$ 631American Airlines

Fri, 24 Jul - Sun, 26 Jul

8:40 a.m. - 2:22 p.m.

YOW

ORD

6h 42m

1 stop

8:10 a.m. - 2:55 p.m.

ORD

YOW

5h 45m

1 stop

C$ 632American Airlines

Mon, 20 Jul - Tue, 21 Jul

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

YOW

ORD

4h 40m

1 stop

7:00 a.m. - 12:54 p.m.

ORD

YOW

4h 54m

1 stop

C$ 655Porter Airlines

Tue, 15 Sep - Tue, 22 Sep

11:00 a.m. - 2:35 p.m.

YOW

MDW

4h 35m

1 stop

10:25 a.m. - 7:09 p.m.

MDW

YOW

7h 44m

1 stop

C$ 667Porter Airlines

Sun, 28 Jun - Sat, 11 Jul

8:50 p.m. - 9:40 a.m.

YOW

MDW

13h 50m

1 stop

3:20 p.m. - 8:04 p.m.

MDW

YOW

3h 44m

1 stop

C$ 671Porter Airlines

Tue, 30 Jun - Tue, 7 Jul

10:40 a.m. - 2:35 p.m.

YOW

MDW

4h 55m

1 stop

10:25 a.m. - 7:09 p.m.

MDW

YOW

7h 44m

1 stop

C$ 678Porter Airlines

Fri, 3 Jul - Sat, 11 Jul

WestJet flights from Ottawa to Chicago

Our best WestJet deals on Ottawa to Chicago flight tickets

WestJet

20 Aug

YOW8:15 p.m.Ottawa

21h 25m

1 stop

ORD4:40 p.m.Chicago O'Hare Intl

27 Aug

ORD5:30 p.m.Chicago O'Hare Intl

11h 05m

1 stop

YOW5:35 a.m.Ottawa

C$ 670

WestJet

12 Aug

YOW4:15 p.m.Ottawa

25h 25m

1 stop

ORD4:40 p.m.Chicago O'Hare Intl

17 Aug

ORD5:30 p.m.Chicago O'Hare Intl

30h 10m

1 stop

YOW12:40 a.m.Ottawa

C$ 703

WestJet

16 Oct

YOW7:20 a.m.Ottawa

10h 20m

1 stop

ORD4:40 p.m.Chicago O'Hare Intl

18 Oct

ORD5:30 p.m.Chicago O'Hare Intl

17h 05m

2 stops

YOW11:35 a.m.Ottawa

C$ 738

Air Canada flights from Ottawa to Chicago

Our best Air Canada deals on Ottawa to Chicago flight tickets

Air Canada

24 Jun

YOW5:20 p.m.Ottawa

3h 56m

1 stop

ORD8:16 p.m.Chicago O'Hare Intl

29 Jun

ORD7:25 a.m.Chicago O'Hare Intl

4h 52m

1 stop

YOW1:17 p.m.Ottawa

C$ 716

Air Canada

26 Jun

YOW5:20 p.m.Ottawa

3h 56m

1 stop

ORD8:16 p.m.Chicago O'Hare Intl

6 Jul

ORD2:00 p.m.Chicago O'Hare Intl

4h 52m

1 stop

YOW7:52 p.m.Ottawa

C$ 729

Air Canada

3 Jul

YOW5:20 p.m.Ottawa

3h 56m

1 stop

ORD8:16 p.m.Chicago O'Hare Intl

11 Jul

ORD2:00 p.m.Chicago O'Hare Intl

4h 52m

1 stop

YOW7:52 p.m.Ottawa

C$ 743

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Thu 17/9

6:55 a.m.-9:35 p.m.

1 stop15h 40m

Chicago O'Hare Intl

Mon 21/9

3:20 p.m.-12:54 p.m.

1 stop20h 34m

C$ 577

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Sat 12/9

6:55 a.m.-2:35 p.m.

1 stop8h 40m

Chicago O'Hare Intl

Wed 16/9

3:20 p.m.-8:04 p.m.

1 stop3h 44m

C$ 589

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Sat 5/9

7:20 a.m.-4:40 p.m.

1 stop10h 20m

Chicago O'Hare Intl

Tue 8/9

3:20 p.m.-5:54 p.m.

1 stop25h 34m

C$ 603

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Fri 24/7

7:00 a.m.-12:44 p.m.

1 stop6h 44m

Chicago O'Hare Intl

Sun 26/7

2:38 p.m.-9:20 p.m.

1 stop5h 42m

C$ 627

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Fri 24/7

8:40 a.m.-2:22 p.m.

1 stop6h 42m

Chicago O'Hare Intl

Sun 26/7

2:38 p.m.-9:20 p.m.

1 stop5h 42m

C$ 631

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Mon 20/7

8:40 a.m.-2:22 p.m.

1 stop6h 42m

Chicago O'Hare Intl

Tue 21/7

8:10 a.m.-2:55 p.m.

1 stop5h 45m

C$ 632

Quickest round-trip

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Tue 15/9

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

1 stop4h 40m

Chicago O'Hare Intl

Tue 22/9

7:00 a.m.-12:54 p.m.

1 stop4h 54m

C$ 655

OttawaChicago

YOW - MDW

YOWMDW

Ottawa

Sun 28/6

11:00 a.m.-2:35 p.m.

1 stop4h 35m

Chicago Midway

Sat 11/7

10:25 a.m.-7:09 p.m.

1 stop7h 44m

C$ 667

OttawaChicago

YOW - MDW

YOWMDW

Ottawa

Tue 30/6

8:50 p.m.-9:40 a.m.

1 stop13h 50m

Chicago Midway

Tue 7/7

3:20 p.m.-8:04 p.m.

1 stop3h 44m

C$ 671

OttawaChicago

YOW - MDW

YOWMDW

Ottawa

Fri 3/7

10:40 a.m.-2:35 p.m.

1 stop4h 55m

Chicago Midway

Sat 11/7

10:25 a.m.-7:09 p.m.

1 stop7h 44m

C$ 678

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Ottawa and Chicago?

What is the cheapest month to fly to Chicago?

The month of October is another great option to travel to Chicago, with average flight prices from Ottawa averaging around C$ 295.

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$ 722. 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 Monday because tickets tend to average around C$ 970. 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$ 752. 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$ 844 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 38% on your flight if you consider stops on a Ottawa to Chicago flight.

How have Ottawa to Chicago flight prices changed over time?

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$ 382
Fastest flight time	2h 19m
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$ 382. The best round-trip flight deal from Ottawa to Chicago found on momondo in the last 72 hours is C$ 594.

The fastest flight from Ottawa to Chicago takes 2h 19m

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

Frequently asked questions about flying from Ottawa to Chicago

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 19m.
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?
The number of operators available for flights from Ottawa Airport to Chicago is 2 as of June 2026.
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?
Based on momondo bookings for flights between Ottawa and Chicago, the leading plane model is Embraer 175 (Enhanced Winglets), making up 43.45% of the total bookings. Other popular models include Embraer 195 E2 with 13.10%, Airbus A319 with 10.12%, and Airbus A321-100/200 with 5.36%.
What is the most popular airline from Ottawa to Chicago?
momondo data reveals that the most frequently booked airline on the route from Ottawa to Chicago is United Airlines, representing 47% of all bookings. The subsequent popular airlines are Porter Airlines at 39% and Air Canada at 14%.

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
Air Canada	PriceFrom C$ 416	Free Cancellation	Rating 7.1 11,126 reviews		Search Air Canada flights
United Airlines	PriceFrom C$ 466	Free Cancellation	Rating 7.4 9,774 reviews		Search United Airlines flights

United Airlines Flights From Ottawa to Chicago
Across 20 United Airlines flights from Ottawa to Chicago this week, the average price was C$ 571, with the best United Airlines deals starting from C$ 466 round-trip. 9,774 users have rated United Airlines on momondo, with an average score of 7.4/10.
Air Canada Flights From Ottawa to Chicago
Across 11,126 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from Ottawa to Chicago about 21 times each week, with ticket deals ranging from C$ 416 to C$ 714. Price data is based on momondo searches in the last 72 hours.

Merrillville

Hammond

Munster

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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Fly into one of these airports located in Chicago

Chicago Midway Airport

Chicago O'Hare Intl Airport

Cheap flights from Ottawa to Chicago from C$ 330

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 7/10. 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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Big names, great deals

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Filter for what you want

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WestJet flights from Ottawa to Chicago

Our best WestJet deals on Ottawa to Chicago flight tickets

Air Canada flights from Ottawa to Chicago

Our best Air Canada deals on Ottawa to Chicago flight tickets

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How to get the cheapest flight ticket from Ottawa to Chicago

What is the typical price of a round-trip flight between Ottawa and Chicago?

What is the cheapest month to fly to Chicago?

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

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

What is the cheapest Ottawa to Chicago flight route?

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

Can stopping save me money on Ottawa to Chicago flights?

How have Ottawa to Chicago flight prices changed over time?

What is the cheapest airline that flies from Ottawa to Chicago?

Which airlines fly to Chicago?

How many flights depart from Ottawa to Chicago on average per day?

How many flights depart from Ottawa to Chicago on average per week?

When to book flights from Ottawa to Chicago

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

Fastest flight time

Direct flights

Airports in Chicago

Frequently asked questions about flying 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

United Airlines Flights From Ottawa to Chicago

Air Canada Flights From Ottawa to Chicago

Travelling to a place near Chicago?

Why use momondo?

An easier way to manage your Chicago 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Fly your favourite airline to Chicago

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Chicago

List of cabin classes available on flights landing in Chicago. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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