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

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

What airlines fly to Ottawa?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Ottawa from Illinois 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 5 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

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

As of October 2026, there are 73 flights per week flying from Illinois to Ottawa. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

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

10 flights are operational daily from Illinois to Ottawa as of October 2026. The most popular departure time for this route is 10:00AM, with 36% of flights per day taking off at noon.

How long does it take to fly to Ottawa?

Average flight duration from Illinois to Ottawa depends on which airport you fly into and out of. Flying from Chicago to Montreal Pierre Elliott Trudeau Intl Airport is 2h 56m on average, while flying from Peoria to Montreal Pierre Elliott Trudeau Intl Airport is 10h 15m on average. Montreal Pierre Elliott Trudeau Intl Airport is the most popular airport in Ottawa.

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

Prices for flights from Illinois to Ottawa Airport are refreshed on a daily basis.

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

As of October 2026, there are 2 operators available to choose from for flights from Illinois to Ottawa Airport.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois 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.

$181 Cheap Flights from Illinois to Ottawa in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Ottawa

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 5:20 pmORD Chicago O'Hare Intl-YOW Ottawa

8h 20m1 stop Fort Lauderdale

8:25 am - 11:40 amYOW Ottawa-ORD Chicago O'Hare Intl

4h 15m1 stop Toronto Island

$398Multiple Airlines

Thu, Oct 29 - Sun, Nov 1

8:00 am - 5:20 pmORD Chicago O'Hare Intl-YOW Ottawa

8h 20m1 stop Fort Lauderdale

7:05 am - 3:37 pmYOW Ottawa-ORD Chicago O'Hare Intl

9h 32m1 stop Fort Lauderdale

$414Multiple Airlines

Thu, Oct 29 - Sun, Nov 1

8:00 am - 5:20 pmORD Chicago O'Hare Intl-YOW Ottawa

8h 20m1 stop Fort Lauderdale

8:25 am - 11:40 amYOW Ottawa-ORD Chicago O'Hare Intl

4h 15m1 stop Toronto Island

$417Multiple Airlines

Thu, Oct 29 - Sun, Nov 1

12:20 pm - 6:14 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 54m1 stop Toronto Island

8:25 am - 11:40 amYOW Ottawa-ORD Chicago O'Hare Intl

4h 15m1 stop Toronto Island

$423Porter Airlines

Mon, Nov 2 - Wed, Nov 4

3:45 pm - 12:45 amORD Chicago O'Hare Intl-YOW Ottawa

8h 00m1 stop Toronto Pearson Intl

9:55 am - 1:25 pmYOW Ottawa-ORD Chicago O'Hare Intl

4h 30m1 stop Toronto Island

$525Air Canada

Tue, Oct 13 - Wed, Oct 14

3:45 pm - 12:45 amORD Chicago O'Hare Intl-YOW Ottawa

8h 00m1 stop Toronto Pearson Intl

2:50 pm - 8:12 pmYOW Ottawa-ORD Chicago O'Hare Intl

6h 22m1 stop Montreal Pierre Elliott Trudeau Intl

$621Air Canada

Tue, Oct 13 - Thu, Oct 15

9:00 am - 10:35 pmORD Chicago O'Hare Intl-YOW Ottawa

12h 35m1 stop Newark

3:10 pm - 11:21 pmYOW Ottawa-ORD Chicago O'Hare Intl

9h 11m1 stop Newark

$732United Airlines

Tue, Oct 20 - Sat, Oct 24

5:00 am - 4:38 pmORD Chicago O'Hare Intl-YOW Ottawa

10h 38m1 stop Newark

6:05 am - 2:45 pmYOW Ottawa-ORD Chicago O'Hare Intl

9h 40m1 stop Newark

$732United Airlines

Tue, Oct 20 - Sat, Oct 24

9:35 pm - 9:11 amORD Chicago O'Hare Intl-YOW Ottawa

10h 36m1 stop Newark

3:10 pm - 11:21 pmYOW Ottawa-ORD Chicago O'Hare Intl

9h 11m1 stop Newark

$751United Airlines

Tue, Oct 20 - Sat, Oct 24

10:57 am - 2:09 pmORD Chicago O'Hare Intl-YOW Ottawa

2h 12mnonstop

10:50 am - 3:00 pmYOW Ottawa-ORD Chicago O'Hare Intl

5h 10m1 stop Montreal Pierre Elliott Trudeau Intl

$826Air Canada

Fri, Nov 13 - Fri, Nov 20

Cheap last minute flights

Enter your travel dates to find the best prices.

11:45 am - 7:07 pmMDW Chicago Midway-YOW Ottawa

6h 22m1 stop Toronto Island

7:15 am - 5:46 pmYOW Ottawa-MDW Chicago Midway

35h 31m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson

$808Multiple Airlines

Sat, Oct 3 - Mon, Oct 5

11:45 am - 7:07 pmMDW Chicago Midway-YOW Ottawa

6h 22m1 stop Toronto Island

8:50 pm - 11:00 amYOW Ottawa-MDW Chicago Midway

15h 10m1 stop Toronto Island

$836Porter Airlines

Sat, Oct 3 - Mon, Oct 5

3:20 pm - 8:02 pmMDW Chicago Midway-YOW Ottawa

3h 42m1 stop Toronto Island

6:50 am - 2:35 pmYOW Ottawa-MDW Chicago Midway

8h 45m1 stop Toronto Pearson Intl

$939Multiple Airlines

Tue, Oct 6 - Thu, Oct 8

7:11 am - 8:00 pmORD Chicago O'Hare Intl-YOW Ottawa

11h 49m2 stops Fort Lauderdale Toronto Pearson Intl

7:15 am - 12:45 amYOW Ottawa-ORD Chicago O'Hare Intl

18h 30m2 stops Fort Lauderdale Dallas/Fort Worth

$947Multiple Airlines

Sat, Oct 3 - Mon, Oct 5

12:55 pm - 6:55 pmORD Chicago O'Hare Intl-YOW Ottawa

5h 00m1 stop Washington, D.C. Dulles Intl

10:37 am - 12:00 pmYOW Ottawa-ORD Chicago O'Hare Intl

2h 23mnonstop

$1,184Air Canada

Tue, Oct 6 - Thu, Oct 8

1:55 pm - 5:16 pmORD Chicago O'Hare Intl-YOW Ottawa

2h 21mnonstop

5:20 pm - 6:46 pmYOW Ottawa-ORD Chicago O'Hare Intl

2h 26mnonstop

$1,184Air Canada

Tue, Oct 6 - Thu, Oct 8

1:55 pm - 5:16 pmORD Chicago O'Hare Intl-YOW Ottawa

2h 21mnonstop

6:25 am - 7:44 amYOW Ottawa-ORD Chicago O'Hare Intl

2h 19mnonstop

$1,230Air Canada

Tue, Oct 6 - Fri, Oct 9

10:40 am - 1:59 pmORD Chicago O'Hare Intl-YOW Ottawa

2h 19mnonstop

5:10 am - 9:44 amYOW Ottawa-ORD Chicago O'Hare Intl

5h 34m1 stop Toronto Pearson Intl

$1,510United Airlines

Wed, Oct 7 - Mon, Oct 26

10:40 am - 1:59 pmORD Chicago O'Hare Intl-YOW Ottawa

2h 19mnonstop

6:25 am - 7:44 amYOW Ottawa-ORD Chicago O'Hare Intl

2h 19mnonstop

$1,540United Airlines

Wed, Oct 7 - Sat, Oct 24

10:40 am - 1:59 pmORD Chicago O'Hare Intl-YOW Ottawa

2h 19mnonstop

5:20 pm - 6:46 pmYOW Ottawa-ORD Chicago O'Hare Intl

2h 26mnonstop

$1,540United Airlines

Wed, Oct 7 - Fri, Oct 23

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

WestJet flights from Illinois to Ottawa

Our best WestJet deals on Illinois to Ottawa flight tickets

WestJet

Oct 15

ORD5:30 pmChicago O'Hare Intl

22h 45m

1 stop

YOW5:15 pmOttawa

Oct 25

YOW5:30 amOttawa

13h 59m

2 stops

ORD6:29 pmChicago O'Hare Intl

$868

WestJet

Oct 15

ORD5:30 pmChicago O'Hare Intl

17h 05m

2 stops

YOW11:35 amOttawa

Oct 25

YOW5:30 amOttawa

13h 59m

2 stops

ORD6:29 pmChicago O'Hare Intl

$902

WestJet

Nov 6

MDW6:44 pmChicago Midway

29h 00m

2 stops

YOW12:44 amOttawa

Nov 8

YOW5:30 amOttawa

13h 30m

2 stops

MDW6:00 pmChicago Midway

$907

Porter Airlines flights from Illinois to Ottawa

Our best Porter Airlines deals on Illinois to Ottawa flight tickets

Porter Airlines

Nov 2

ORD12:20 pmChicago O'Hare Intl

4h 54m

1 stop

YOW6:14 pmOttawa

Nov 4

YOW8:25 amOttawa

4h 15m

1 stop

ORD11:40 amChicago O'Hare Intl

$423

Porter Airlines

Oct 27

ORD12:20 pmChicago O'Hare Intl

4h 54m

1 stop

YOW6:14 pmOttawa

Nov 3

YOW12:15 pmOttawa

6h 25m

1 stop

ORD5:40 pmChicago O'Hare Intl

$438

Porter Airlines

Oct 28

ORD12:20 pmChicago O'Hare Intl

4h 54m

1 stop

YOW6:14 pmOttawa

Nov 4

YOW8:25 amOttawa

4h 15m

1 stop

ORD11:40 amChicago O'Hare Intl

$444

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Thu 10/29

8:00 am-5:20 pm

1 stop8h 20m

Ottawa

Sun 11/1

8:25 am-11:40 am

1 stop4h 15m

$398

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Thu 10/29

8:00 am-5:20 pm

1 stop8h 20m

Ottawa

Sun 11/1

7:05 am-3:37 pm

1 stop9h 32m

$414

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Thu 10/29

8:00 am-5:20 pm

1 stop8h 20m

Ottawa

Sun 11/1

8:25 am-11:40 am

1 stop4h 15m

$417

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Mon 11/2

12:20 pm-6:14 pm

1 stop4h 54m

Ottawa

Wed 11/4

8:25 am-11:40 am

1 stop4h 15m

$423

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Tue 10/13

3:45 pm-12:45 am

1 stop8h 00m

Ottawa

Wed 10/14

9:55 am-1:25 pm

1 stop4h 30m

$525

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Tue 10/13

3:45 pm-12:45 am

1 stop8h 00m

Ottawa

Thu 10/15

2:50 pm-8:12 pm

1 stop6h 22m

$621

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Tue 10/20

9:00 am-10:35 pm

1 stop12h 35m

Ottawa

Sat 10/24

3:10 pm-11:21 pm

1 stop9h 11m

$732

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Tue 10/20

5:00 am-4:38 pm

1 stop10h 38m

Ottawa

Sat 10/24

6:05 am-2:45 pm

1 stop9h 40m

$732

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Tue 10/20

9:35 pm-9:11 am

1 stop10h 36m

Ottawa

Sat 10/24

3:10 pm-11:21 pm

1 stop9h 11m

$751

Quickest round-trip

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Fri 11/13

10:57 am-2:09 pm

Nonstop2h 12m

Ottawa

Fri 11/20

10:50 am-3:00 pm

1 stop5h 10m

$826

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 Illinois 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

Other information

What is the cheapest month to fly to Ottawa?

In general, April is the cheapest month to fly from Illinois to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $400. The month of September is another great option to travel to Ottawa, with average flight prices from Illinois averaging around $574.

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

The cheapest day to depart from Illinois to Ottawa is on a Thursday. Travelers who choose to depart for Ottawa on a Thursday will often find tickets for as low as $703. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Sunday is $997.

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

In the afternoon is the cheapest time of day to fly from Illinois to Ottawa when you can find flight prices for as low as $661. Flying to Ottawa in the afternoon 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 morning when prices are $869 on average. Flights to Ottawa from Illinois in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to Ottawa flight route?

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

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

There are 4 cabin classes available to choose from on Illinois 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 Illinois to Ottawa flights?

You could potentially save up to 37% on your flight if you consider stops on a Illinois to Ottawa flight.

Cheap Illinois to Ottawa flight deals and tips

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

Best Price Found	$181
Fastest flight time	2h 12m
Direct flights	Every day
Airports in Ottawa	1 airport

The best one-way flight to Ottawa from Illinois in the past 72 hours is $181. The best round-trip flight deal from Illinois to Ottawa found on momondo in the last 72 hours is $398.

The fastest flight from Illinois to Ottawa takes 2h 12m

Direct flights go from Illinois to Ottawa every day.

There is 1 airport in Ottawa. From Illinois there are direct flights to Ottawa (YOW).

Search flight deals

Frequently asked questions about flying from Illinois to Ottawa

When did momondo last update prices for flights from Illinois to Ottawa Airport?
Prices for flights from Illinois to Ottawa Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Ottawa Airport?
As of October 2026, there are 2 operators available to choose from for flights from Illinois to Ottawa Airport.
How old do you have to be to fly from Illinois to Ottawa Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois 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 Illinois to Ottawa?
Based on momondo bookings for flights between Illinois and Ottawa, the leading plane model is Embraer 175 (Enhanced Winglets), making up 36.36% of the total bookings. Other popular models include Airbus A319 with 28.48%, Boeing 737 MAX 8 with 6.06%, and Canadair (Bombardier) Regional Jet CRJ-550 with 3.64%.

Best airlines flying from Illinois to Ottawa

Compare and see reviews for airlines that fly from Illinois to Ottawa with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $349	Free Cancellation	Rating 7.1 11,706 reviews		Search Air Canada flights
United Airlines	PriceFrom $437	Free Cancellation	Rating 7.4 10,270 reviews		Search United Airlines flights

Gatineau

Brockville

Pembroke

Petawawa

Calabogie

Prescott

Smiths Falls

Perth

Wakefield

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Ottawa for you.

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

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

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

Once you have performed a search for Illinois to Ottawa flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Illinois to Ottawa now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ottawa and let you know when they 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

Sat 10/31

Sat 11/7

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

Nearby airports

Airlines

Cabin classes

Other Canada destinations

Other flights from Illinois

Complete your trip

Feeling lucky

Cheap flights from Illinois to Ottawa from $181

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Ottawa departing on 11/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Illinois to Ottawa

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

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

WestJet flights from Illinois to Ottawa

Our best WestJet deals on Illinois to Ottawa flight tickets

Porter Airlines flights from Illinois to Ottawa

Our best Porter Airlines deals on Illinois to Ottawa flight tickets

momondo Fare Finder

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

See travel insights to Ottawa from

How to get the cheapest flight ticket from Illinois to Ottawa

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 Illinois to Ottawa flight route?

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

Can stopping save me money on Illinois to Ottawa flights?

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

What airlines fly to Ottawa?

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

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

How long does it take to fly to Ottawa?

Cheap Illinois to Ottawa flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Ottawa

Frequently asked questions about flying from Illinois to Ottawa

Best airlines flying from Illinois to Ottawa

Compare and see reviews for airlines that fly from Illinois to Ottawa with momondo

Traveling to a place near Ottawa?

Why use momondo?

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

Fly your favorite airline to Ottawa

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Ottawa

List of cabin classes available on flights landing in Ottawa. Availability may vary depending on flight origin and airline.

Popular cities in Canada

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Illinois

According to popular flight searches on momondo this year

Complete your trip to Ottawa

Explore popular destinations other users love

According to popular flight searches on momondo this year