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Cheap flights from Chicago O'Hare Intl Airport to Ottawa from $116

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 O'Hare Intl Airport to Ottawa departing on 11/21. 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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0 bags

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Find the cheapest flights from Chicago O'Hare Intl Airport to Ottawa

Cheap round-trip flights

Multiple Airlines Logo
5:05 am - 5:20 pmORD-YOW
11h 15m1 stop
Multiple Airlines Logo
4:25 pm - 6:46 pmYOW-ORD
27h 21m1 stop
$300Multiple Airlines
Find Deal
Mon, Oct 6 - Thu, Oct 16
Multiple Airlines Logo
6:44 pm - 5:20 pmORD-YOW
21h 36m1 stop
Multiple Airlines Logo
3:50 pm - 6:38 pmYOW-ORD
27h 48m1 stop
$301Multiple Airlines
Find Deal
Wed, Oct 1 - Mon, Oct 6
WestJet Logo
2:20 pm - 12:40 amORD-YOW
9h 20m1 stop
WestJet Logo
5:45 pm - 1:35 pmYOW-ORD
20h 50m1 stop
$302WestJet
Find Deal
Fri, Nov 21 - Sun, Nov 23
Multiple Airlines Logo
6:00 am - 4:57 pmORD-YOW
9h 57m1 stop
Multiple Airlines Logo
3:50 pm - 11:45 pmYOW-ORD
8h 55m1 stop
$304Multiple Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 15
Multiple Airlines Logo
2:20 pm - 12:40 amORD-YOW
9h 20m1 stop
Multiple Airlines Logo
5:40 am - 10:39 pmYOW-ORD
17h 59m2 stops
$306Multiple Airlines
Find Deal
Thu, Oct 30 - Mon, Nov 3
Multiple Airlines Logo
11:15 am - 6:45 amORD-YOW
18h 30m2 stops
Multiple Airlines Logo
3:50 pm - 6:38 pmYOW-ORD
27h 48m1 stop
$307Multiple Airlines
Find Deal
Wed, Oct 1 - Mon, Oct 6
WestJet Logo
5:30 pm - 2:56 pmORD-YOW
20h 26m1 stop
WestJet Logo
7:50 am - 4:43 pmYOW-ORD
9h 53m1 stop
$322WestJet
Find Deal
Fri, Oct 10 - Sun, Oct 12
WestJet Logo
2:20 pm - 12:40 amORD-YOW
9h 20m1 stop
WestJet Logo
5:40 am - 6:47 pmYOW-ORD
14h 07m2 stops
$344WestJet
Find Deal
Fri, Nov 21 - Sun, Nov 23
United Airlines Logo
2:20 pm - 10:05 pmORD-YOW
6h 45m1 stop
United Airlines Logo
5:25 pm - 6:54 pmYOW-ORD
2h 29mnonstop
$369United Airlines
Find Deal
Tue, Oct 21 - Wed, Oct 22
United Airlines Logo
2:20 pm - 10:05 pmORD-YOW
6h 45m1 stop
United Airlines Logo
6:33 am - 8:00 amYOW-ORD
2h 27mnonstop
$375United Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5

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

Our best United Airlines deals on Chicago O'Hare Intl Airport to Ottawa flight tickets
United Airlines
Oct 21
ORD2:20 pmChicago O'Hare Intl
6h 45m
1 stop
YOW10:05 pmOttawa
Oct 22
YOW5:25 pmOttawa
2h 29m
ORD6:54 pmChicago O'Hare Intl
$369
Find similar
United Airlines
Oct 3
ORD2:20 pmChicago O'Hare Intl
6h 45m
1 stop
YOW10:05 pmOttawa
Oct 5
YOW6:33 amOttawa
2h 27m
ORD8:00 amChicago O'Hare Intl
$375
Find similar
United Airlines
Sep 30
ORD10:50 amChicago O'Hare Intl
2h 14m
YOW2:04 pmOttawa
Oct 5
YOW5:25 pmOttawa
2h 29m
ORD6:54 pmChicago O'Hare Intl
$411
Find similar

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

Our best Air Canada deals on Chicago O'Hare Intl Airport to Ottawa flight tickets
Air Canada
Oct 1
ORD10:50 amChicago O'Hare Intl
2h 14m
YOW2:04 pmOttawa
Oct 5
YOW5:25 pmOttawa
2h 29m
ORD6:54 pmChicago O'Hare Intl
$734
Find similar
Air Canada
Sep 26
ORD7:10 amChicago O'Hare Intl
4h 54m
1 stop
YOW1:04 pmOttawa
Sep 30
YOW5:25 pmOttawa
2h 29m
ORD6:54 pmChicago O'Hare Intl
$756
Find similar
Air Canada
Sep 26
ORD7:10 amChicago O'Hare Intl
4h 54m
1 stop
YOW1:04 pmOttawa
Sep 27
YOW12:00 pmOttawa
7h 48m
1 stop
ORD6:48 pmChicago O'Hare Intl
$866
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Mon 10/6

5:05 am-5:20 pm

1 stop11h 15m

Ottawa

Thu 10/16

4:25 pm-6:46 pm

1 stop27h 21m

$300

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 10/1

6:44 pm-5:20 pm

1 stop21h 36m

Ottawa

Mon 10/6

3:50 pm-6:38 pm

1 stop27h 48m

$301

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 11/21

2:20 pm-12:40 am

1 stop9h 20m

Ottawa

Sun 11/23

5:45 pm-1:35 pm

1 stop20h 50m

$302

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 10/8

6:00 am-4:57 pm

1 stop9h 57m

Ottawa

Wed 10/15

3:50 pm-11:45 pm

1 stop8h 55m

$304

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 10/30

2:20 pm-12:40 am

1 stop9h 20m

Ottawa

Mon 11/3

5:40 am-10:39 pm

2 stops17h 59m

$306

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 10/1

11:15 am-6:45 am

2 stops18h 30m

Ottawa

Mon 10/6

3:50 pm-6:38 pm

1 stop27h 48m

$307

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 10/10

5:30 pm-2:56 pm

1 stop20h 26m

Ottawa

Sun 10/12

7:50 am-4:43 pm

1 stop9h 53m

$322

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 11/21

2:20 pm-12:40 am

1 stop9h 20m

Ottawa

Sun 11/23

5:40 am-6:47 pm

2 stops14h 07m

$344

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 10/21

2:20 pm-10:05 pm

1 stop6h 45m

Ottawa

Wed 10/22

5:25 pm-6:54 pm

Nonstop2h 29m

$369

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 10/3

2:20 pm-10:05 pm

1 stop6h 45m

Ottawa

Sun 10/5

6:33 am-8:00 am

Nonstop2h 27m

$375

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 Ottawa from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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?

In general, July is the cheapest month to fly from Chicago O'Hare Intl Airport to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $252. The month of March is another great option to travel to Ottawa, with average flight prices from Chicago O'Hare Intl Airport averaging around $261.

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

The cheapest day to depart from Chicago O'Hare Intl Airport to Ottawa is on a Thursday. Travelers who choose to depart for Ottawa on a Thursday will often find tickets for as low as $554. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Tuesday is $666.

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

In the morning is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Ottawa when you can find flight prices for as low as $562. Flying to Ottawa in the morning 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 afternoon when prices are $675 on average. Flights to Ottawa from Chicago O'Hare Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

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

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to Ottawa.

How have Chicago O'Hare Intl Airport to Ottawa flight prices changed over time?

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

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

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

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

Best Price Found

$509

Fastest flight time

2h 06m

Direct flights

Every day

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from Chicago O'Hare Intl Airport in the past 72 hours is $509. The best round-trip flight deal from Chicago O'Hare Intl Airport to Ottawa found on momondo in the last 72 hours is $499.
The fastest flight from Chicago O'Hare Intl Airport to Ottawa takes 2h 06m
Direct flights go from Chicago O'Hare Intl Airport to Ottawa every day.
There is 1 airport near Ottawa: Ottawa (YOW)
Search flight deals

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

    Ottawa is 653.1 mi away from Chicago O'Hare Intl. Flights usually cover this in 6h 45m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    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 Chicago O'Hare Intl Airport to Ottawa Airport.

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

    The required travel and health documents for your Ottawa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ottawa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

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

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $189Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

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

    United Airlines operates around 21 flights from Chicago O'Hare Intl Airport to Ottawa every week. The average price of these flights found in the last 72 hours has been $559, but momondo users have found United Airlines deals from Chicago O'Hare Intl Airport to Ottawa from as low as $236 round-trip. United Airlines has been scored 7.4/10 in 8,926 reviews.

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

    The best Air Canada deal for Chicago O'Hare Intl Airport to Ottawa flight tickets found on momondo in the last 72 hours was $189, round-trip. It should be noted that an average Air Canada flight deal for this route in this time was higher, at $366 round-trip. Air Canada operates 21 flights out of Chicago O'Hare Intl Airport into Ottawa in an average week, so prices vary by time and availability. 10,000 Air Canada reviews by users on momondo have scored the airline at 7.1/10.

Traveling to a place near Ottawa?

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

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. All flights to Ottawa from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Price alerts on flights to Ottawa from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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