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Cheap flights from Illinois to Ottawa from C$ 255

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 7/9. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 a.m. - 12:54 p.m.
ORD
-
YOW
4h 54m
1 stop
Multiple Airlines Logo
6:25 p.m. - 11:00 a.m.
YOW
-
ORD
17h 35m
1 stop
C$ 518Multiple Airlines
Sat, 5 Sep - Sat, 5 Sep
Multiple Airlines Logo
7:00 a.m. - 5:35 p.m.
ORD
-
YOW
9h 35m
1 stop
Multiple Airlines Logo
6:25 p.m. - 11:00 a.m.
YOW
-
ORD
17h 35m
1 stop
C$ 558Multiple Airlines
Fri, 4 Sep - Sat, 5 Sep
Multiple Airlines Logo
3:20 p.m. - 12:20 a.m.
ORD
-
YOW
8h 00m
1 stop
Multiple Airlines Logo
6:25 p.m. - 11:00 a.m.
YOW
-
ORD
17h 35m
1 stop
C$ 569Multiple Airlines
Thu, 3 Sep - Sat, 5 Sep
Porter Airlines Logo
7:00 a.m. - 12:54 p.m.
ORD
-
YOW
4h 54m
1 stop
Porter Airlines Logo
10:40 a.m. - 2:35 p.m.
YOW
-
ORD
4h 55m
1 stop
C$ 576Porter Airlines
Sat, 5 Sep - Tue, 8 Sep
Multiple Airlines Logo
8:05 a.m. - 3:15 p.m.
ORD
-
YOW
30h 10m
1 stop
Multiple Airlines Logo
5:55 p.m. - 9:35 p.m.
YOW
-
ORD
4h 40m
1 stop
C$ 585Multiple Airlines
Sun, 30 Aug - Wed, 2 Sep
Porter Airlines Logo
3:15 p.m. - 12:54 p.m.
MDW
-
YOW
20h 39m
1 stop
Porter Airlines Logo
8:45 p.m. - 9:45 a.m.
YOW
-
MDW
14h 00m
1 stop
C$ 606Porter Airlines
Fri, 14 Aug - Mon, 17 Aug
Porter Airlines Logo
10:25 a.m. - 12:54 p.m.
MDW
-
YOW
25h 29m
1 stop
Porter Airlines Logo
10:40 a.m. - 2:35 p.m.
YOW
-
MDW
4h 55m
1 stop
C$ 626Porter Airlines
Fri, 17 Jul - Thu, 23 Jul
WestJet Logo
4:00 p.m. - 12:20 a.m.
BMI
-
YOW
31h 20m
2 stops
WestJet Logo
6:55 a.m. - 11:17 a.m.
YOW
-
BMI
29h 22m
2 stops
C$ 1,809WestJet
Sat, 17 Oct - Wed, 21 Oct
WestJet Logo
4:00 p.m. - 12:20 a.m.
BMI
-
YOW
31h 20m
2 stops
WestJet Logo
6:55 a.m. - 11:17 a.m.
YOW
-
BMI
29h 22m
2 stops
C$ 1,810WestJet
Sat, 17 Oct - Wed, 21 Oct
WestJet Logo
4:00 p.m. - 12:20 a.m.
BMI
-
YOW
31h 20m
2 stops
WestJet Logo
6:55 a.m. - 11:17 a.m.
YOW
-
BMI
29h 22m
2 stops
C$ 1,825WestJet
Sat, 17 Oct - Wed, 21 Oct

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Porter Airlines flights from Illinois to Ottawa

Our best Porter Airlines deals on Illinois to Ottawa flight tickets
Porter Airlines
5 Sep
ORD7:00 a.m.Chicago O'Hare Intl
4h 54m
1 stop
YOW12:54 p.m.Ottawa
8 Sep
YOW10:40 a.m.Ottawa
4h 55m
1 stop
ORD2:35 p.m.Chicago O'Hare Intl
C$ 576
Porter Airlines
14 Aug
MDW3:15 p.m.Chicago Midway
20h 39m
1 stop
YOW12:54 p.m.Ottawa
17 Aug
YOW8:45 p.m.Ottawa
14h 00m
1 stop
MDW9:45 a.m.Chicago Midway
C$ 606
Porter Airlines
17 Jul
MDW10:25 a.m.Chicago Midway
25h 29m
1 stop
YOW12:54 p.m.Ottawa
23 Jul
YOW10:40 a.m.Ottawa
4h 55m
1 stop
MDW2:35 p.m.Chicago Midway
C$ 626

American Airlines flights from Illinois to Ottawa

Our best American Airlines deals on Illinois to Ottawa flight tickets
American Airlines
24 Jul
ORD2:39 p.m.Chicago O'Hare Intl
5h 41m
1 stop
YOW9:20 p.m.Ottawa
28 Jul
YOW8:40 a.m.Ottawa
6h 42m
1 stop
ORD2:22 p.m.Chicago O'Hare Intl
C$ 655
American Airlines
22 Jul
ORD2:38 p.m.Chicago O'Hare Intl
5h 42m
1 stop
YOW9:20 p.m.Ottawa
27 Jul
YOW8:40 a.m.Ottawa
6h 42m
1 stop
ORD2:22 p.m.Chicago O'Hare Intl
C$ 657
American Airlines
6 Sep
ORD8:09 a.m.Chicago O'Hare Intl
5h 46m
1 stop
YOW2:55 p.m.Ottawa
9 Sep
YOW7:00 a.m.Ottawa
6h 45m
1 stop
ORD12:45 p.m.Chicago O'Hare Intl
C$ 671

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 96,600 searches. Data last updated 24 June 2026.
Use the filters below to find and compare flights from Illinois to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sat 5/9

7:00 a.m.-12:54 p.m.

1 stop4h 54m

Ottawa

Sat 5/9

6:25 p.m.-11:00 a.m.

1 stop17h 35m

C$ 518

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 4/9

7:00 a.m.-5:35 p.m.

1 stop9h 35m

Ottawa

Sat 5/9

6:25 p.m.-11:00 a.m.

1 stop17h 35m

C$ 558

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 3/9

3:20 p.m.-12:20 a.m.

1 stop8h 00m

Ottawa

Sat 5/9

6:25 p.m.-11:00 a.m.

1 stop17h 35m

C$ 569
Quickest round-trip

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sat 5/9

7:00 a.m.-12:54 p.m.

1 stop4h 54m

Ottawa

Tue 8/9

10:40 a.m.-2:35 p.m.

1 stop4h 55m

C$ 576

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sun 30/8

8:05 a.m.-3:15 p.m.

1 stop30h 10m

Ottawa

Wed 2/9

5:55 p.m.-9:35 p.m.

1 stop4h 40m

C$ 585

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 14/8

3:15 p.m.-12:54 p.m.

1 stop20h 39m

Ottawa

Mon 17/8

8:45 p.m.-9:45 a.m.

1 stop14h 00m

C$ 606

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 17/7

10:25 a.m.-12:54 p.m.

1 stop25h 29m

Ottawa

Thu 23/7

10:40 a.m.-2:35 p.m.

1 stop4h 55m

C$ 626

BloomingtonOttawa

BMI - YOW

BMIYOW

Bloomington-Normal

Sat 17/10

4:00 p.m.-12:20 a.m.

2 stops31h 20m

Ottawa

Wed 21/10

6:55 a.m.-11:17 a.m.

2 stops29h 22m

C$ 1,809

BloomingtonOttawa

BMI - YOW

BMIYOW

Bloomington-Normal

Sat 17/10

4:00 p.m.-12:20 a.m.

2 stops31h 20m

Ottawa

Wed 21/10

6:55 a.m.-11:17 a.m.

2 stops29h 22m

C$ 1,810

BloomingtonOttawa

BMI - YOW

BMIYOW

Bloomington-Normal

Sat 17/10

4:00 p.m.-12:20 a.m.

2 stops31h 20m

Ottawa

Wed 21/10

6:55 a.m.-11:17 a.m.

2 stops29h 22m

C$ 1,825

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 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

What is the cheapest month to fly to Ottawa?

The month of September is, on average, the cheapest month to fly to Ottawa from Illinois, with most prices found around C$ 228. If you aren’t able to travel to Ottawa during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of C$ 247.

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

Our data shows that Monday is the least expensive day to fly to Ottawa. Tickets to fly out on this day can be as low as C$ 721. Flights from Illinois to Ottawa on a Tuesday will generally be more expensive and average around C$ 1,029. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Ottawa is in the morning. Flights from Illinois to Ottawa during this time can be as low as C$ 903. At noon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,029 per ticket.

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 2 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 43% 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

C$ 240

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 C$ 240. The best round-trip flight deal from Illinois to Ottawa found on momondo in the last 72 hours is C$ 1,029.
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 old do you have to be to fly from Illinois to Ottawa Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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?

Travelling to a place near Ottawa?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ottawa from Illinois.

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

momondo does allow users to show only those flights to Ottawa from Illinois which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Ottawa from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.

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