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Cheap flights from Chicago to Ottawa from $127

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 12/8. 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

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Cheap round-trip flights

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Multiple Airlines Logo
5:00 am - 5:25 pmORD-YOW
11h 25m1 stop
Multiple Airlines Logo
4:15 pm - 12:19 amYOW-ORD
9h 04m1 stop
$313Multiple Airlines
Find Deal
jue., nov. 27 - jue., dic. 4
Multiple Airlines Logo
5:00 am - 5:25 pmORD-YOW
11h 25m1 stop
Multiple Airlines Logo
4:15 pm - 12:19 amYOW-ORD
9h 04m1 stop
$317Multiple Airlines
Find Deal
jue., nov. 27 - jue., dic. 4
Multiple Airlines Logo
5:00 am - 5:25 pmORD-YOW
11h 25m1 stop
Multiple Airlines Logo
9:30 am - 11:14 amYOW-ORD
26h 44m3 stops
$323Multiple Airlines
Find Deal
jue., nov. 27 - jue., dic. 4
WestJet Logo
2:20 pm - 12:40 amORD-YOW
9h 20m1 stop
WestJet Logo
5:45 pm - 1:35 pmYOW-ORD
20h 50m1 stop
$370WestJet
Find Deal
vie., dic. 12 - dom., dic. 14
Porter Airlines Logo
11:00 am - 5:29 pmMDW-YOW
5h 29m1 stop
Porter Airlines Logo
12:10 pm - 3:20 pmYOW-MDW
4h 10m1 stop
$459Porter Airlines
Find Deal
jue., nov. 20 - lun., nov. 24
WestJet Logo
2:20 pm - 12:40 amORD-YOW
9h 20m1 stop
WestJet Logo
5:45 pm - 1:35 pmYOW-ORD
20h 50m1 stop
$467WestJet
Find Deal
vie., dic. 12 - dom., dic. 14
Air Canada Logo
2:00 pm - 7:18 pmORD-YOW
4h 18m1 stop
Air Canada Logo
7:15 am - 1:01 pmYOW-ORD
6h 46m1 stop
$510Air Canada
Find Deal
jue., ene. 1 - lun., ene. 5
Porter Airlines Logo
4:15 pm - 3:04 pmMDW-YOW
21h 49m1 stop
Porter Airlines Logo
3:35 pm - 10:05 amYOW-MDW
19h 30m1 stop
$522Porter Airlines
Find Deal
dom., mar. 22 - sáb., mar. 28
United Airlines Logo
7:15 am - 9:56 pmORD-YOW
13h 41m1 stop
United Airlines Logo
5:55 pm - 9:05 amYOW-ORD
16h 10m1 stop
$546United Airlines
Find Deal
sáb., nov. 8 - dom., nov. 9
Air Canada Logo
12:50 pm - 7:22 pmORD-YOW
5h 32m1 stop
Air Canada Logo
2:50 pm - 8:10 pmYOW-ORD
6h 20m1 stop
$564Air Canada
Find Deal
mar., dic. 23 - dom., dic. 28

WestJet flights from Chicago to Ottawa

Our best WestJet deals on Chicago to Ottawa flight tickets
WestJet
Dec 12
ORD2:20 pmChicago O'Hare Intl
9h 20m
1 stop
YOW12:40 amOttawa
Dec 14
YOW5:45 pmOttawa
20h 50m
1 stop
ORD1:35 pmChicago O'Hare Intl
$370
Find similar
WestJet
Dec 12
ORD2:20 pmChicago O'Hare Intl
9h 20m
1 stop
YOW12:40 amOttawa
Dec 14
YOW5:45 pmOttawa
20h 50m
1 stop
ORD1:35 pmChicago O'Hare Intl
$467
Find similar
WestJet
Oct 20
ORD7:20 pmChicago O'Hare Intl
28h 02m
2 stops
YOW12:22 amOttawa
Oct 27
YOW6:00 amOttawa
16h 43m
2 stops
ORD9:43 pmChicago O'Hare Intl
$1,116
Find similar

Porter Airlines flights from Chicago to Ottawa

Our best Porter Airlines deals on Chicago to Ottawa flight tickets
Porter Airlines
Nov 20
MDW11:00 amChicago Midway
5h 29m
1 stop
YOW5:29 pmOttawa
Nov 24
YOW12:10 pmOttawa
4h 10m
1 stop
MDW3:20 pmChicago Midway
$459
Find similar
Porter Airlines
Mar 22
MDW4:15 pmChicago Midway
21h 49m
1 stop
YOW3:04 pmOttawa
Mar 28
YOW3:35 pmOttawa
19h 30m
1 stop
MDW10:05 amChicago Midway
$522
Find similar
Porter Airlines
Dec 23
MDW4:15 pmChicago Midway
5h 14m
1 stop
YOW10:29 pmOttawa
Dec 28
YOW12:10 pmOttawa
4h 10m
1 stop
MDW3:20 pmChicago Midway
$606
Find similar

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 832,500 searches. Data last updated octubre 14, 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

jue. 11/27

5:00 am-5:25 pm

1 stop11h 25m

Ottawa

jue. 12/4

4:15 pm-12:19 am

1 stop9h 04m

$313

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

jue. 11/27

5:00 am-5:25 pm

1 stop11h 25m

Ottawa

jue. 12/4

4:15 pm-12:19 am

1 stop9h 04m

$317

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

jue. 11/27

5:00 am-5:25 pm

1 stop11h 25m

Ottawa

jue. 12/4

9:30 am-11:14 am

3 stops26h 44m

$323

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

vie. 12/12

2:20 pm-12:40 am

1 stop9h 20m

Ottawa

dom. 12/14

5:45 pm-1:35 pm

1 stop20h 50m

$370

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

jue. 11/20

11:00 am-5:29 pm

1 stop5h 29m

Ottawa

lun. 11/24

12:10 pm-3:20 pm

1 stop4h 10m

$459

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

vie. 12/12

2:20 pm-12:40 am

1 stop9h 20m

Ottawa

dom. 12/14

5:45 pm-1:35 pm

1 stop20h 50m

$467

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

jue. 1/1

2:00 pm-7:18 pm

1 stop4h 18m

Ottawa

lun. 1/5

7:15 am-1:01 pm

1 stop6h 46m

$510

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

dom. 3/22

4:15 pm-3:04 pm

1 stop21h 49m

Ottawa

sáb. 3/28

3:35 pm-10:05 am

1 stop19h 30m

$522

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

sáb. 11/8

7:15 am-9:56 pm

1 stop13h 41m

Ottawa

dom. 11/9

5:55 pm-9:05 am

1 stop16h 10m

$546

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

mar. 12/23

12:50 pm-7:22 pm

1 stop5h 32m

Ottawa

dom. 12/28

2:50 pm-8:10 pm

1 stop6h 20m

$564

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 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, May is the cheapest month to fly from Chicago to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $339. The month of September is another great option to travel to Ottawa, with average flight prices from Chicago averaging around $400.

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

The cheapest day to depart from Chicago to Ottawa is on a Saturday. Travelers who choose to depart for Ottawa on a Saturday will often find tickets for as low as $547. 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 $692.

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 to Ottawa when you can find flight prices for as low as $560. 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 $640 on average. Flights to Ottawa from Chicago in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 4 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?

No. A direct flight is the cheapest option for a flight between Chicago to Ottawa.

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

Best Price Found

$213

Fastest flight time

2h 01m

Direct flights

Every day

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from Chicago in the past 72 hours is $213. The best round-trip flight deal from Chicago to Ottawa found on momondo in the last 72 hours is $338.
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)
Search flight deals

  • How far is Chicago to Ottawa by plane?

    Chicago and Ottawa are 643.5 mi apart from one another. By plane, this route typically takes 2h 06m.

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

    Prices for flights from Chicago to Ottawa Airport refresh daily.

  • How many operators does momondo search for flights from Chicago to Ottawa Airport?

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

Best airlines flying from Chicago to Ottawa

Compare and see reviews for airlines that fly from Chicago to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $189Free CancellationRating
7.1
10,297 reviews
Search Air Canada flights
Porter AirlinesPriceFrom $189Free CancellationRating
8.0
379 reviews
Search Porter Airlines flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
8,976 reviews
Search United Airlines flights

  • United Airlines Flights From Chicago to Ottawa

    United Airlines flies from Chicago to Ottawa around 21 times per week, with 8,977 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Chicago to Ottawa in the last 72 hours was $236 (round-trip), much lower than the average airfare cost of $548 for United Airlines flights on this route.

  • Air Canada Flights From Chicago to Ottawa

    Air Canada is also a popular choice for this route. Air Canada flight deals for Chicago to Ottawa start from as low as $189 round-trip, depending on your selected dates, with average Air Canada deals seen on momondo around $357. Air Canada operates 21 flights to Ottawa from Chicago in an average week. Users have rated it 7.1/10 across 10,298 reviews.

Traveling to a place near Ottawa?

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

Why use momondo?

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

Finding the right flight to Ottawa from Chicago 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 Ottawa quick and easy, saving you time and money.

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 helps you find the best flight between Chicago and Ottawa by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Ottawa from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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