What is the most punctual flight time for Chicago to Ottawa flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

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

As of November 2025, 11 flights take off from Chicago and land in Ottawa each day. The most common flight departure time for this route is 6:00PM, with 39% of daily flights taking off in the evening.

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

81 flights are operational weekly from Chicago to Ottawa as of November 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.

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

Porter Airlines is the most popular carrier operating from Chicago to Ottawa

Which airline has the best punctuality record on Chicago to Ottawa flights?

According to our data, Delta have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

What airlines fly to Ottawa?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Ottawa from Chicago according to our data. Air Canada is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 4 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

How often are flights from Chicago to Ottawa delayed?

Historically, on average around 11% of flights between Chicago and Ottawa have experienced a delay on any given week. The average delay length over the past 12 months has been 137 minutes.

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?

There are 3 operators available for flights from Chicago to Ottawa Airport as of November 2025.

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.

$110 Cheap Flights from Chicago to Ottawa in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Chicago to Ottawa

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:15 am - 5:25 pmORD-YOW

11h 10m1 stop

4:20 pm - 8:54 pmYOW-ORD

29h 34m3 stops

$233Multiple Airlines

Find Deal

Thu, Jan 8 - Sun, Jan 11

5:45 am - 12:25 amORD-YOW

17h 40m2 stops

4:20 pm - 11:46 pmYOW-ORD

32h 26m3 stops

$244Multiple Airlines

Find Deal

Thu, Jan 8 - Sun, Jan 11

8:27 pm - 5:13 pmORD-YOW

19h 46m1 stop

7:00 am - 8:57 pmYOW-ORD

14h 57m1 stop

$245Multiple Airlines

Find Deal

Thu, Jan 8 - Thu, Jan 15

7:29 am - 5:25 pmORD-YOW

8h 56m1 stop

4:20 pm - 11:46 pmYOW-ORD

32h 26m3 stops

$248Multiple Airlines

Find Deal

Fri, Jan 9 - Fri, Jan 16

2:47 pm - 5:25 pmORD-YOW

25h 38m1 stop

7:00 am - 7:17 pmYOW-ORD

13h 17m1 stop

$253Multiple Airlines

Find Deal

Thu, Jan 29 - Thu, Feb 5

8:27 pm - 5:13 pmORD-YOW

19h 46m1 stop

7:00 am - 8:57 pmYOW-ORD

14h 57m1 stop

$254Multiple Airlines

Find Deal

Thu, Jan 8 - Thu, Jan 15

12:48 pm - 12:42 amORD-YOW

34h 54m2 stops

7:00 am - 8:57 pmYOW-ORD

14h 57m1 stop

$256Multiple Airlines

Find Deal

Thu, Jan 8 - Thu, Jan 15

8:27 pm - 5:13 pmORD-YOW

19h 46m1 stop

7:00 am - 8:57 pmYOW-ORD

14h 57m1 stop

$260Multiple Airlines

Find Deal

Thu, Jan 8 - Thu, Jan 15

11:05 am - 5:29 pmMDW-YOW

5h 24m1 stop

7:00 am - 10:05 amYOW-MDW

4h 05m1 stop

$297Porter Airlines

Find Deal

Fri, Jan 9 - Fri, Jan 16

11:00 am - 5:29 pmMDW-YOW

5h 29m1 stop

8:55 pm - 10:05 amYOW-MDW

14h 10m1 stop

$317Porter Airlines

Find Deal

Thu, Jan 29 - Wed, Feb 4

Porter Airlines flights from Chicago to Ottawa

Our best Porter Airlines deals on Chicago to Ottawa flight tickets

Porter Airlines

Jan 9

MDW11:05 amChicago Midway

5h 24m

1 stop

YOW5:29 pmOttawa

Jan 16

YOW7:00 amOttawa

4h 05m

1 stop

MDW10:05 amChicago Midway

$297

Find similar

Porter Airlines

Jan 29

MDW11:00 amChicago Midway

5h 29m

1 stop

YOW5:29 pmOttawa

Feb 4

YOW8:55 pmOttawa

14h 10m

1 stop

MDW10:05 amChicago Midway

$317

Find similar

Porter Airlines

Dec 29

MDW4:15 pmChicago Midway

3h 39m

1 stop

YOW8:54 pmOttawa

Jan 5

YOW6:50 amOttawa

4h 20m

1 stop

MDW10:10 amChicago Midway

$357

Find similar

WestJet flights from Chicago to Ottawa

Our best WestJet deals on Chicago to Ottawa flight tickets

WestJet

May 22

ORD5:30 pmChicago O'Hare Intl

23h 55m

1 stop

YOW6:25 pmOttawa

May 24

YOW6:00 amOttawa

11h 43m

1 stop

ORD4:43 pmChicago O'Hare Intl

$341

Find similar

WestJet

Dec 1

MDW10:47 amChicago Midway

12h 55m

2 stops

YOW12:42 amOttawa

Dec 5

YOW5:45 pmOttawa

20h 25m

2 stops

MDW1:10 pmChicago Midway

$1,142

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 1/8

5:15 am-5:25 pm

1 stop11h 10m

Ottawa

Sun 1/11

4:20 pm-8:54 pm

3 stops29h 34m

$233

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 1/8

5:45 am-12:25 am

2 stops17h 40m

Ottawa

Sun 1/11

4:20 pm-11:46 pm

3 stops32h 26m

$244

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 1/8

8:27 pm-5:13 pm

1 stop19h 46m

Ottawa

Thu 1/15

7:00 am-8:57 pm

1 stop14h 57m

$245

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 1/9

7:29 am-5:25 pm

1 stop8h 56m

Ottawa

Fri 1/16

4:20 pm-11:46 pm

3 stops32h 26m

$248

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 1/29

2:47 pm-5:25 pm

1 stop25h 38m

Ottawa

Thu 2/5

7:00 am-7:17 pm

1 stop13h 17m

$253

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 1/8

8:27 pm-5:13 pm

1 stop19h 46m

Ottawa

Thu 1/15

7:00 am-8:57 pm

1 stop14h 57m

$254

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 1/8

12:48 pm-12:42 am

2 stops34h 54m

Ottawa

Thu 1/15

7:00 am-8:57 pm

1 stop14h 57m

$256

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 1/8

8:27 pm-5:13 pm

1 stop19h 46m

Ottawa

Thu 1/15

7:00 am-8:57 pm

1 stop14h 57m

$260

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 1/9

11:05 am-5:29 pm

1 stop5h 24m

Ottawa

Fri 1/16

7:00 am-10:05 am

1 stop4h 05m

$297

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 1/29

11:00 am-5:29 pm

1 stop5h 29m

Ottawa

Wed 2/4

8:55 pm-10:05 am

1 stop14h 10m

$317

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 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

Prices

Airlines

Delays

Other information

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 Thursday. Travelers who choose to depart for Ottawa on a Thursday will often find tickets for as low as $550. 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?

At noon is the cheapest time of day to fly from Chicago to Ottawa when you can find flight prices for as low as $551. Flying to Ottawa at noon 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 $634 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 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 44% on your flight if you consider stops on a Chicago to Ottawa flight.

How have Chicago to Ottawa flight prices changed over time?

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	$626
Fastest flight time	2h 01m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sat
Airports in Ottawa	1 airport

The best flight deal from Chicago to Ottawa found on momondo in the last 72 hours is $626

The fastest flight from Chicago to Ottawa takes 2h 01m

Direct flights go from Chicago to Ottawa on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. The only airline offering direct flights is United Airlines.

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 3h 39m.
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?
There are 3 operators available for flights from Chicago to Ottawa Airport as of November 2025.
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?
Based on momondo bookings for flights between Chicago and Ottawa, the leading plane model is Embraer 175 (Enhanced Winglets), making up 38.79% of the total bookings. Other popular models include Canadair (Bombardier) Regional Jet CRJ-550 with 18.97%, Airbus A330-300 with 7.33%, and Airbus A330-200 with 4.31%.
What is the most popular airline from Chicago to Ottawa?
momondo data reveals that the most frequently booked airline on the route from Chicago to Ottawa is United Airlines, representing 44% of all bookings. The subsequent popular airlines are Air Canada at 33% and Porter Airlines at 24%.

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 Canada	PriceFrom $189	Free Cancellation	Rating 7.1 10,476 reviews	Search Air Canada flights
United Airlines	PriceFrom $236	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights
Porter Airlines	PriceFrom $250	Free Cancellation	Rating 8.0 394 reviews	Search Porter Airlines flights

United Airlines Flights From Chicago to Ottawa
United Airlines flies from Chicago to Ottawa around 20 times per week, with 9,046 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 $545 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 $328. Air Canada operates 20 flights to Ottawa from Chicago in an average week. Users have rated it 7.1/10 across 10,476 reviews.

Gatineau

Pembroke

Calabogie

Brockville

Petawawa

Smiths Falls

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.

An easier way to manage your Ottawa 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Fri 12/26

Fri 1/2

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada

Airports servicing Ontario

Popular cities in Canada

Flights to Torontofrom $73

Flights to Vancouverfrom $83

Flights to Montrealfrom $156

Flights to Calgaryfrom $145

Flights to Halifaxfrom $230

Flights to Winnipegfrom $161

Flights to Québec Cityfrom $175

Flights to Saskatoonfrom $195

Flights to Kelownafrom $131

Flights to St. John'sfrom $238

Flights to Reginafrom $175

Flights to Monctonfrom $419

Cheap flights from Chicago to Ottawa from $110

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 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Chicago to Ottawa

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Porter Airlines flights from Chicago to Ottawa

Our best Porter Airlines deals on Chicago to Ottawa flight tickets

WestJet flights from Chicago to Ottawa

Our best WestJet deals on Chicago to Ottawa flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Chicago to Ottawa that are best for you.

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?

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

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

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 44% on your flight if you consider stops on a Chicago to Ottawa flight.

How have Chicago to Ottawa flight prices changed over time?

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

Porter Airlines is the most popular carrier operating from Chicago to Ottawa

What airlines fly to Ottawa?

How often are flights from Chicago to Ottawa delayed?

Historically, on average around 11% of flights between Chicago and Ottawa have experienced a delay on any given week. The average delay length over the past 12 months has been 137 minutes.

What is the most punctual flight time for Chicago to Ottawa flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Chicago to Ottawa flights?

According to our data, Delta have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

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

As of November 2025, 11 flights take off from Chicago and land in Ottawa each day. The most common flight departure time for this route is 6:00PM, with 39% of daily flights taking off in the evening.

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

81 flights are operational weekly from Chicago to Ottawa as of November 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.

When to book flights from Chicago to Ottawa

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

Fastest flight time

Direct flights

Airports in Ottawa

How far is Chicago to Ottawa by plane?

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

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?

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

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

United Airlines Flights From Chicago to Ottawa

Air Canada Flights From Chicago to Ottawa

Traveling to a place near Ottawa?

Why use momondo?

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

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

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

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

An easier way to manage your Ottawa 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 Canada

Airports servicing Ontario