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Cheap flights from Chicago O'Hare Intl Airport to Ottawa from $136

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 9/29. 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

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
vie., nov. 21 - dom., nov. 23
Logo
2:20 pm - 12:40 amORD-YOW
9h 20m1 stop
Logo
5:40 am - 10:39 pmYOW-ORD
17h 59m2 stops
$306
Find Deal
jue., oct. 30 - lun., nov. 3
Logo
2:20 pm - 12:40 amORD-YOW
9h 20m1 stop
Logo
5:40 am - 8:31 pmYOW-ORD
15h 51m2 stops
$309
Find Deal
vie., nov. 14 - lun., nov. 17
Logo
6:00 am - 4:57 pmORD-YOW
9h 57m1 stop
Logo
4:25 pm - 3:39 pmYOW-ORD
24h 14m1 stop
$310
Find Deal
mié., oct. 22 - vie., oct. 24
Logo
7:43 pm - 5:20 pmORD-YOW
20h 37m1 stop
Logo
7:50 am - 4:43 pmYOW-ORD
9h 53m1 stop
$313
Find Deal
vie., oct. 10 - dom., oct. 12
Logo
7:43 pm - 5:20 pmORD-YOW
20h 37m1 stop
Logo
7:50 am - 4:43 pmYOW-ORD
9h 53m1 stop
$316
Find Deal
vie., oct. 17 - lun., oct. 20
Air Canada Logo
8:25 pm - 1:34 amORD-YOW
4h 09m1 stop
Air Canada Logo
6:00 am - 9:51 amYOW-ORD
4h 51m1 stop
$357Air Canada
Find Deal
vie., oct. 3 - dom., oct. 5
Air Canada Logo
8:25 pm - 1:34 amORD-YOW
4h 09m1 stop
Air Canada Logo
6:00 am - 9:51 amYOW-ORD
4h 51m1 stop
$361Air Canada
Find Deal
vie., oct. 3 - dom., oct. 5
United Airlines Logo
10:50 am - 2:04 pmORD-YOW
2h 14mnonstop
United Airlines Logo
5:25 pm - 6:54 pmYOW-ORD
2h 29mnonstop
$369United Airlines
Find Deal
mar., oct. 21 - mié., oct. 22
United Airlines Logo
10:45 am - 6:52 pmORD-YOW
7h 07m1 stop
United Airlines Logo
6:33 am - 8:00 amYOW-ORD
2h 27mnonstop
$375United Airlines
Find Deal
vie., oct. 3 - dom., oct. 5

WestJet flights from Chicago O'Hare Intl Airport to Ottawa

Our best WestJet deals on Chicago O'Hare Intl Airport to Ottawa flight tickets
WestJet
Nov 21
ORD2:20 pmChicago O'Hare Intl
9h 20m
1 stop
YOW12:40 amOttawa
Nov 23
YOW5:45 pmOttawa
20h 50m
1 stop
ORD1:35 pmChicago O'Hare Intl
$302
Find similar
WestJet
Oct 10
ORD5:30 pmChicago O'Hare Intl
20h 26m
1 stop
YOW2:56 pmOttawa
Oct 12
YOW6:00 amOttawa
11h 43m
1 stop
ORD4:43 pmChicago O'Hare Intl
$322
Find similar
WestJet
Nov 21
ORD2:20 pmChicago O'Hare Intl
9h 20m
1 stop
YOW12:40 amOttawa
Nov 23
YOW5:40 amOttawa
14h 07m
2 stops
ORD6:47 pmChicago O'Hare Intl
$344
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 3
ORD8:25 pmChicago O'Hare Intl
4h 09m
1 stop
YOW1:34 amOttawa
Oct 5
YOW6:00 amOttawa
4h 51m
1 stop
ORD9:51 amChicago O'Hare Intl
$357
Find similar
Air Canada
Oct 3
ORD8:25 pmChicago O'Hare Intl
4h 09m
1 stop
YOW1:34 amOttawa
Oct 5
YOW6:00 amOttawa
4h 51m
1 stop
ORD9:51 amChicago O'Hare Intl
$361
Find similar
Air Canada
Oct 3
ORD8:25 pmChicago O'Hare Intl
4h 09m
1 stop
YOW1:34 amOttawa
Oct 5
YOW6:33 amOttawa
2h 27m
ORD8:00 amChicago O'Hare Intl
$383
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 septiembre 15, 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

vie. 11/21

2:20 pm-12:40 am

1 stop9h 20m

Ottawa

dom. 11/23

5:45 pm-1:35 pm

1 stop20h 50m

$302

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

jue. 10/30

2:20 pm-12:40 am

1 stop9h 20m

Ottawa

lun. 11/3

5:40 am-10:39 pm

2 stops17h 59m

$306

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

vie. 11/14

2:20 pm-12:40 am

1 stop9h 20m

Ottawa

lun. 11/17

5:40 am-8:31 pm

2 stops15h 51m

$309

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

mié. 10/22

6:00 am-4:57 pm

1 stop9h 57m

Ottawa

vie. 10/24

4:25 pm-3:39 pm

1 stop24h 14m

$310

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

vie. 10/10

7:43 pm-5:20 pm

1 stop20h 37m

Ottawa

dom. 10/12

7:50 am-4:43 pm

1 stop9h 53m

$313

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

vie. 10/17

7:43 pm-5:20 pm

1 stop20h 37m

Ottawa

lun. 10/20

7:50 am-4:43 pm

1 stop9h 53m

$316

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

vie. 10/3

8:25 pm-1:34 am

1 stop4h 09m

Ottawa

dom. 10/5

6:00 am-9:51 am

1 stop4h 51m

$357

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

vie. 10/3

8:25 pm-1:34 am

1 stop4h 09m

Ottawa

dom. 10/5

6:00 am-9:51 am

1 stop4h 51m

$361

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

mar. 10/21

10:50 am-2:04 pm

Nonstop2h 14m

Ottawa

mié. 10/22

5:25 pm-6:54 pm

Nonstop2h 29m

$369

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

vie. 10/3

10:45 am-6:52 pm

1 stop7h 07m

Ottawa

dom. 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 11m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

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 11m
Direct flights go from Chicago O'Hare Intl Airport to Ottawa on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
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 2h 14m, 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
8,929 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 8,929 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.

An easier way to manage your Ottawa trip

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