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Cheap flights from Chicago to Ottawa from C$ 178

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Ottawa departing on 8/12. 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

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Multiple Airlines Logo
2:20 p.m. - 2:01 p.m.ORD-YOW
22h 41m2 stops
Multiple Airlines Logo
4:20 p.m. - 2:16 p.m.YOW-ORD
22h 56m1 stop
C$ 423Multiple Airlines
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Fri, 28 Nov - Fri, 5 Dec
Multiple Airlines Logo
10:52 a.m. - 5:25 p.m.ORD-YOW
29h 33m1 stop
Multiple Airlines Logo
9:30 a.m. - 11:06 p.m.YOW-ORD
14h 36m1 stop
C$ 425Multiple Airlines
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Multiple Airlines Logo
10:52 a.m. - 5:25 p.m.ORD-YOW
29h 33m1 stop
Multiple Airlines Logo
4:35 p.m. - 12:45 p.m.YOW-ORD
21h 10m2 stops
C$ 432Multiple Airlines
Find Deal
Tue, 11 Nov - Tue, 18 Nov
WestJet Logo
2:20 p.m. - 12:40 a.m.ORD-YOW
9h 20m1 stop
WestJet Logo
5:45 p.m. - 1:35 p.m.YOW-ORD
20h 50m1 stop
C$ 518WestJet
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Fri, 12 Dec - Sun, 14 Dec
Porter Airlines Logo
11:00 a.m. - 5:29 p.m.MDW-YOW
5h 29m1 stop
Porter Airlines Logo
12:10 p.m. - 3:20 p.m.YOW-MDW
4h 10m1 stop
C$ 643Porter Airlines
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Thu, 20 Nov - Mon, 24 Nov
WestJet Logo
2:20 p.m. - 12:40 a.m.ORD-YOW
9h 20m1 stop
WestJet Logo
5:45 p.m. - 1:35 p.m.YOW-ORD
20h 50m1 stop
C$ 654WestJet
Find Deal
Fri, 12 Dec - Sun, 14 Dec
Air Canada Logo
10:00 a.m. - 5:18 p.m.ORD-YOW
6h 18m1 stop
Air Canada Logo
2:05 p.m. - 7:30 p.m.YOW-ORD
6h 25m1 stop
C$ 715Air Canada
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Thu, 1 Jan - Mon, 5 Jan
Porter Airlines Logo
4:15 p.m. - 3:04 p.m.MDW-YOW
21h 49m1 stop
Porter Airlines Logo
3:35 p.m. - 10:05 a.m.YOW-MDW
19h 30m1 stop
C$ 731Porter Airlines
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Sun, 22 Mar - Sat, 28 Mar
United Airlines Logo
7:15 a.m. - 9:56 p.m.ORD-YOW
13h 41m1 stop
United Airlines Logo
5:55 p.m. - 9:05 a.m.YOW-ORD
16h 10m1 stop
C$ 765United Airlines
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Sat, 8 Nov - Sun, 9 Nov
Air Canada Logo
12:50 p.m. - 7:22 p.m.ORD-YOW
5h 32m1 stop
Air Canada Logo
2:50 p.m. - 8:10 p.m.YOW-ORD
6h 20m1 stop
C$ 790Air Canada
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Tue, 23 Dec - Sun, 28 Dec

Porter Airlines flights from Chicago to Ottawa

Our best Porter Airlines deals on Chicago to Ottawa flight tickets
Porter Airlines
20 Nov
MDW11:00 a.m.Chicago Midway
5h 29m
1 stop
YOW5:29 p.m.Ottawa
24 Nov
YOW12:10 p.m.Ottawa
4h 10m
1 stop
MDW3:20 p.m.Chicago Midway
C$ 643
Find similar
Porter Airlines
22 Mar
MDW4:15 p.m.Chicago Midway
21h 49m
1 stop
YOW3:04 p.m.Ottawa
28 Mar
YOW3:35 p.m.Ottawa
19h 30m
1 stop
MDW10:05 a.m.Chicago Midway
C$ 731
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Porter Airlines
23 Dec
MDW4:15 p.m.Chicago Midway
5h 14m
1 stop
YOW10:29 p.m.Ottawa
28 Dec
YOW12:10 p.m.Ottawa
4h 10m
1 stop
MDW3:20 p.m.Chicago Midway
C$ 849
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WestJet flights from Chicago to Ottawa

Our best WestJet deals on Chicago to Ottawa flight tickets
WestJet
12 Dec
ORD2:20 p.m.Chicago O'Hare Intl
9h 20m
1 stop
YOW12:40 a.m.Ottawa
14 Dec
YOW5:45 p.m.Ottawa
20h 50m
1 stop
ORD1:35 p.m.Chicago O'Hare Intl
C$ 518
Find similar
WestJet
12 Dec
ORD2:20 p.m.Chicago O'Hare Intl
9h 20m
1 stop
YOW12:40 a.m.Ottawa
14 Dec
YOW5:45 p.m.Ottawa
20h 50m
1 stop
ORD1:35 p.m.Chicago O'Hare Intl
C$ 654
Find similar
WestJet
22 Oct
ORD8:57 a.m.Chicago O'Hare Intl
30h 22m
2 stops
YOW4:19 p.m.Ottawa
1 Nov
YOW6:00 a.m.Ottawa
16h 43m
2 stops
ORD9:43 p.m.Chicago O'Hare Intl
C$ 1,553
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momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Ottawa 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 October 2025.
Use the filters below to find and compare flights from Chicago to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 28/11

2:20 p.m.-2:01 p.m.

2 stops22h 41m

Ottawa

Fri 5/12

4:20 p.m.-2:16 p.m.

1 stop22h 56m

C$ 423

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 11/11

10:52 a.m.-5:25 p.m.

1 stop29h 33m

Ottawa

Tue 18/11

9:30 a.m.-11:06 p.m.

1 stop14h 36m

C$ 425

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 11/11

10:52 a.m.-5:25 p.m.

1 stop29h 33m

Ottawa

Tue 18/11

4:35 p.m.-12:45 p.m.

2 stops21h 10m

C$ 432

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 12/12

2:20 p.m.-12:40 a.m.

1 stop9h 20m

Ottawa

Sun 14/12

5:45 p.m.-1:35 p.m.

1 stop20h 50m

C$ 518

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 20/11

11:00 a.m.-5:29 p.m.

1 stop5h 29m

Ottawa

Mon 24/11

12:10 p.m.-3:20 p.m.

1 stop4h 10m

C$ 643

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 12/12

2:20 p.m.-12:40 a.m.

1 stop9h 20m

Ottawa

Sun 14/12

5:45 p.m.-1:35 p.m.

1 stop20h 50m

C$ 654

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 1/1

10:00 a.m.-5:18 p.m.

1 stop6h 18m

Ottawa

Mon 5/1

2:05 p.m.-7:30 p.m.

1 stop6h 25m

C$ 715

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sun 22/3

4:15 p.m.-3:04 p.m.

1 stop21h 49m

Ottawa

Sat 28/3

3:35 p.m.-10:05 a.m.

1 stop19h 30m

C$ 731

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sat 8/11

7:15 a.m.-9:56 p.m.

1 stop13h 41m

Ottawa

Sun 9/11

5:55 p.m.-9:05 a.m.

1 stop16h 10m

C$ 765

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 23/12

12:50 p.m.-7:22 p.m.

1 stop5h 32m

Ottawa

Sun 28/12

2:50 p.m.-8:10 p.m.

1 stop6h 20m

C$ 790

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Ottawa from

How to get the cheapest flight ticket from Chicago to Ottawa

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 Ottawa?

The month of May is, on average, the cheapest month to fly to Ottawa from Chicago, with most prices found around C$ 475. If you aren’t able to travel to Ottawa during the month of May, then flying in September is also cheap. Prices for this month can be found on momondo for an average of C$ 560.

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

Our data shows that Thursday is the least expensive day to fly to Ottawa. Tickets to fly out on this day can be as low as C$ 519. Flights from Chicago to Ottawa on a Sunday will generally be more expensive and average around C$ 1,019. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Ottawa is in the afternoon. Flights from Chicago to Ottawa during this time can be as low as C$ 519. In the morning is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 854 per ticket.

What is the cheapest Chicago to Ottawa flight route?

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

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

There are 3 cabin classes available to choose from on Chicago to Ottawa 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 Chicago to Ottawa flights?

You could potentially save up to 3% on your flight if you consider stops on a Chicago to Ottawa flight.

How have Chicago to Ottawa flight prices changed over time?

As of October 2025, prices for Chicago to Ottawa flights are approximately 14% more expensive when compared to flights at the same time last year.

When to book flights from Chicago to Ottawa

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

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

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

Fastest flight time

2h 01m

Direct flights

Every day

Airports in Ottawa

1 airport
The fastest flight from Chicago to Ottawa takes 2h 01m
Direct flights go from Chicago to Ottawa every day.
There is 1 airport near Ottawa: Ottawa (YOW)
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  • How far is Chicago to Ottawa by plane?

    Chicago and Ottawa are 1035.5 km apart from one another. A reasonable flight in good conditions will take 3h 44m.

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

    Prices for flights from Chicago to Ottawa Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The necessary travel and health documents for your Ottawa Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Pembroke
Brockville
Smiths Falls
Perth
Wakefield
Calabogie
Prescott
Petawawa

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Ottawa . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Chicago to Ottawa flights to just show those with flexible booking policies.

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

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

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

Yes. momondo can track prices for Chicago to Ottawa 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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