How does KAYAK find such low prices on flights from Illinois to Ottawa?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Ottawa.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Ottawa?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ottawa from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Ottawa?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ottawa with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Ottawa?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ottawa from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$137 CHEAP FLIGHTS from Illinois to Ottawa

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Cheap Flights from Illinois to Ottawa

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Ottawa

Fri, Nov 13 - Sun, Nov 15

10:15 am - 12:44 amORD Chicago O'Hare Intl-YOW Ottawa

13h 29m1 stop Toronto Pearson Intl

5:30 am - 7:58 pmYOW Ottawa-ORD Chicago O'Hare Intl

15h 28m1 stop Toronto Pearson Intl

$356Multiple Airlines

Mon, Oct 26 - Sun, Nov 8

8:04 am - 5:58 pmORD Chicago O'Hare Intl-YOW Ottawa

32h 54m2 stops Fort Lauderdale Toronto Pearson Intl

5:30 am - 5:40 pmYOW Ottawa-ORD Chicago O'Hare Intl

13h 10m1 stop Toronto Pearson Intl

$372Multiple Airlines

Tue, Oct 20 - Tue, Oct 27

3:20 pm - 11:27 amMDW Chicago Midway-YOW Ottawa

19h 07m1 stop Toronto Island

7:05 am - 11:47 pmYOW Ottawa-MDW Chicago Midway

17h 42m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson

$392Multiple Airlines

Sat, Oct 17 - Sun, Oct 18

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

6h 22m1 stop Toronto Island

6:25 pm - 11:00 amYOW Ottawa-MDW Chicago Midway

17h 35m1 stop Toronto Pearson Intl

$401Multiple Airlines

Tue, Oct 20 - Sat, Oct 24

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

10h 36m1 stop Newark

6:05 am - 6:39 pmYOW Ottawa-ORD Chicago O'Hare Intl

13h 34m1 stop Newark

$638United Airlines

Thu, Oct 1 - Tue, Oct 6

8:55 am - 3:10 pmSTL Lambert-St Louis-YOW Ottawa

5h 15m1 stop Toronto Pearson Intl

2:50 pm - 6:41 pmYOW Ottawa-STL Lambert-St Louis

4h 51m1 stop Montreal Pierre Elliott Trudeau Intl

$667Air Canada

Wed, Oct 28 - Sat, Oct 31

9:59 am - 9:56 pmSTL Lambert-St Louis-YOW Ottawa

10h 57m1 stop Newark

3:10 pm - 10:54 pmYOW Ottawa-STL Lambert-St Louis

8h 44m1 stop Newark

$671United Airlines

Thu, Oct 1 - Tue, Oct 6

1:09 pm - 6:55 pmSTL Lambert-St Louis-YOW Ottawa

4h 46m1 stop Washington, D.C. Dulles Intl

2:52 pm - 9:21 pmYOW Ottawa-STL Lambert-St Louis

7h 29m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$680United Airlines

Sat, Oct 17 - Sat, Oct 24

2:00 pm - 7:52 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 52m1 stop Toronto Island

10:00 am - 1:23 pmYOW Ottawa-ORD Chicago O'Hare Intl

4h 23m1 stop Toronto Pearson Intl

$728Air Canada

Sat, Oct 24 - Sun, Oct 25

2:00 pm - 7:52 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 52m1 stop Toronto Island

5:10 am - 9:23 amYOW Ottawa-ORD Chicago O'Hare Intl

5h 13m1 stop Toronto Pearson Intl

$741Air Canada

Recent last minute flight deals from Illinois to Ottawa

Wed, Sep 23 - Wed, Sep 30

3:50 pm - 12:52 pmORD Chicago O'Hare Intl-YOW Ottawa

20h 02m3 stops Orlando Newark Toronto Island

2:10 pm - 9:20 amYOW Ottawa-ORD Chicago O'Hare Intl

20h 10m2 stops Newark Atlanta Hartsfield-Jackson

$695Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

3:50 pm - 12:52 pmORD Chicago O'Hare Intl-YOW Ottawa

20h 02m3 stops Orlando Newark Toronto Island

8:00 am - 9:20 amYOW Ottawa-ORD Chicago O'Hare Intl

26h 20m3 stops Toronto Island Newark Atlanta Hartsfield-Jackson

$737Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

3:50 pm - 12:52 pmORD Chicago O'Hare Intl-YOW Ottawa

20h 02m3 stops Orlando Newark Toronto Island

2:10 pm - 9:20 amYOW Ottawa-ORD Chicago O'Hare Intl

20h 10m2 stops Newark Atlanta Hartsfield-Jackson

$738Multiple Airlines

Fri, Sep 25 - Mon, Sep 28

5:30 pm - 5:58 pmORD Chicago O'Hare Intl-YOW Ottawa

23h 28m1 stop Calgary

2:10 pm - 10:59 pmYOW Ottawa-ORD Chicago O'Hare Intl

33h 49m2 stops Newark Orlando

$741Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

6:21 pm - 9:35 pmORD Chicago O'Hare Intl-YOW Ottawa

2h 14mnonstop

5:10 am - 9:00 amYOW Ottawa-ORD Chicago O'Hare Intl

4h 50m1 stop Toronto Pearson Intl

$1,062Air Canada

Wed, Sep 23 - Wed, Sep 30

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

$1,154United Airlines

Tue, Sep 22 - Sat, Sep 26

3:32 pm - 9:35 pmSTL Lambert-St Louis-YOW Ottawa

5h 03m1 stop Chicago O'Hare Intl

10:37 am - 7:41 pmYOW Ottawa-STL Lambert-St Louis

10h 04m1 stop Chicago O'Hare Intl

$1,196United Airlines

Wed, Sep 23 - Mon, Sep 28

6:21 pm - 9:35 pmORD Chicago O'Hare Intl-YOW Ottawa

2h 14mnonstop

6:01 pm - 7:42 amYOW Ottawa-ORD Chicago O'Hare Intl

14h 41m1 stop Newark

$1,201United Airlines

Wed, Sep 23 - Mon, Sep 28

7:25 am - 1:17 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 52m1 stop Toronto Island

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

2h 23mnonstop

$1,239Air Canada

Fri, Sep 25 - Sun, Sep 27

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

2h 21mnonstop

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

2h 23mnonstop

$1,245Air Canada

Useful Info

Low season	January
High season	December
Cheapest flight	$137

Best time to beat the crowds with an average 13% drop in price.

Most popular time to fly and prices are also 3% lower on average.

Flight from Chicago O'Hare Airport to Ottawa

Verified travelerFlew with Air Canada-Nov 2024

Ottawa, as a small airport is easiest to navigate! Overhead baggage compartments seem to be smaller, and on every flight they seem to need travellers to volunteer to put carryons in checked luggage instead.

Verified travelerFlew with United Airlines-Jan 2024

I always expect issues with United but there doesn't seem to be another airline to use. Advice: Give yourself and extra day to get anywhere - don't be in a hurry to get home either.

How does KAYAK find such low prices on flights from Illinois to Ottawa?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Ottawa.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Ottawa?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ottawa from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Ottawa?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ottawa with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Ottawa?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ottawa from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.