YOW

$157 Find Cheap Flights from Illinois to Ottawa - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ottawa departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Illinois to Ottawa

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Ottawa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to Ottawa

Tue, Sep 1 - Tue, Sep 1
Air Canada Logo
10:40 am - 1:59 pm
ORD
-
YOW
2h 19mnonstop
Air Canada Logo
5:20 pm - 8:41 pm
YOW
-
ORD
4h 21m
1 stop
$268Air Canada
Tue, Sep 1 - Tue, Sep 1
Air Canada Logo
8:45 am - 2:17 pm
ORD
-
YOW
4h 32m
1 stop
Air Canada Logo
5:20 pm - 8:41 pm
YOW
-
ORD
4h 21m
1 stop
$320Air Canada
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
11:05 am - 12:20 am
ORD
-
YOW
12h 15m
2 stops
Multiple Airlines Logo
6:55 am - 7:48 pm
YOW
-
ORD
13h 53m
1 stop
$375Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
2:15 pm - 12:20 am
ORD
-
YOW
9h 05m
1 stop
Multiple Airlines Logo
6:55 am - 2:55 pm
YOW
-
ORD
9h 00m
1 stop
$376Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
2:15 pm - 12:20 am
ORD
-
YOW
9h 05m
1 stop
Multiple Airlines Logo
6:55 am - 2:55 pm
YOW
-
ORD
9h 00m
1 stop
$379Multiple Airlines
Fri, Aug 28 - Fri, Sep 4
United Airlines Logo
7:25 am - 1:59 pm
STL
-
YOW
5h 34m
1 stop
United Airlines Logo
6:25 am - 10:12 am
YOW
-
STL
4h 47m
1 stop
$591United Airlines
Fri, Sep 11 - Tue, Sep 15
Air Canada Logo
8:55 am - 3:10 pm
STL
-
YOW
5h 15m
1 stop
Air Canada Logo
2:45 pm - 6:41 pm
YOW
-
STL
4h 56m
1 stop
$602Air Canada
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
7:25 am - 1:59 pm
STL
-
YOW
5h 34m
1 stop
United Airlines Logo
10:37 am - 5:06 pm
YOW
-
STL
7h 29m
1 stop
$603United Airlines
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
8:30 am - 5:16 pm
STL
-
YOW
7h 46m
1 stop
United Airlines Logo
10:37 am - 10:00 pm
YOW
-
STL
12h 23m
1 stop
$605United Airlines
Wed, Sep 2 - Sat, Sep 12
Air Canada Logo
2:40 pm - 9:20 pm
STL
-
YOW
5h 40m
1 stop
Air Canada Logo
10:00 am - 2:00 pm
YOW
-
STL
5h 00m
1 stop
$607Air Canada
Useful Info

Good to know

Low season

January

Cheapest flight

$157
Best time to beat the crowds with an average 14% drop in price.
Flight from Chicago O'Hare Airport to Ottawa

Flights from Illinois to Ottawa: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Illinois to Ottawa 
Learn how KAYAK collects reviews and tips from users.
Verified travelerFlew with Air Canada
ORD
-
YOW
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
ORD
-
YOW
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.

FAQs for booking flights from Illinois to Ottawa

  • 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.

Everything you need to know for your flight to Ottawa

Information on the airport you'll fly into in Ottawa

Ottawa (YOW)