YOW - ORD

$197 Find Cheap Flights from Ottawa to Chicago O'Hare Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to O'Hare Intl departing on 4/24. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Chicago, as well as popular online travel agencies
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$347
Overall average: $528
Multiple Airlines
Wed 4/15Mon 4/20
YOW - ORD • 1 stop
Cheapest non-stop
$599
Typical prices: $490-$599
United Airlines
Thu 4/16Sun 4/19
YOW - ORD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus adds 6 inches of legroom.
Air Canada's Preferred Economy adds 4 inches of legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with United Airlines. Average duration is 2h 36m
Direct flights
Direct flights
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+1
Direct flights
Direct flights
+1
When to travel
Cheapest • 36% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to O'Hare Intl!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Ottawa to O'Hare Intl (YOW-ORD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to O'Hare Intl 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 Ottawa to O'Hare Intl

Wed, Apr 15 - Mon, Apr 20
Multiple Airlines Logo
7:00 am - 9:17 pm
YOW
-
ORD
15h 17m
1 stop
Multiple Airlines Logo
12:47 pm - 5:25 pm
ORD
-
YOW
27h 38m
1 stop
$347Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Multiple Airlines Logo
5:40 am - 12:22 am
YOW
-
ORD
19h 42m
2 stops
Multiple Airlines Logo
2:09 pm - 12:35 pm
ORD
-
YOW
21h 26m
1 stop
$353Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Multiple Airlines Logo
3:55 pm - 12:22 am
YOW
-
ORD
9h 27m
1 stop
Multiple Airlines Logo
2:09 pm - 12:35 pm
ORD
-
YOW
21h 26m
1 stop
$358Multiple Airlines
Wed, Apr 15 - Mon, Apr 20
Multiple Airlines Logo
7:00 am - 9:17 pm
YOW
-
ORD
15h 17m
1 stop
Multiple Airlines Logo
2:09 pm - 5:25 pm
ORD
-
YOW
26h 16m
1 stop
$367Multiple Airlines
Tue, Apr 14 - Wed, Apr 15
Multiple Airlines Logo
7:00 am - 9:17 pm
YOW
-
ORD
15h 17m
1 stop
Multiple Airlines Logo
7:15 pm - 5:25 pm
ORD
-
YOW
21h 10m
2 stops
$371Multiple Airlines
Tue, Apr 14 - Wed, Apr 15
Multiple Airlines Logo
7:00 am - 9:17 pm
YOW
-
ORD
15h 17m
1 stop
Multiple Airlines Logo
7:15 pm - 12:25 am
ORD
-
YOW
28h 10m
1 stop
$373Multiple Airlines
Wed, Apr 15 - Mon, Apr 20
Multiple Airlines Logo
7:00 am - 9:17 pm
YOW
-
ORD
15h 17m
1 stop
Multiple Airlines Logo
12:47 pm - 5:25 pm
ORD
-
YOW
27h 38m
1 stop
$383Multiple Airlines
Tue, Apr 14 - Wed, Apr 22
Multiple Airlines Logo
7:00 am - 9:36 am
YOW
-
ORD
27h 36m
1 stop
Multiple Airlines Logo
7:15 pm - 5:25 pm
ORD
-
YOW
21h 10m
2 stops
$384Multiple Airlines
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
7:00 am - 9:36 am
YOW
-
ORD
27h 36m
1 stop
Multiple Airlines Logo
8:58 pm - 5:35 am
ORD
-
YOW
31h 37m
2 stops
$388Multiple Airlines
Tue, Apr 14 - Wed, Apr 22
Multiple Airlines Logo
7:00 am - 9:36 am
YOW
-
ORD
27h 36m
1 stop
Multiple Airlines Logo
5:05 am - 5:25 pm
ORD
-
YOW
11h 20m
1 stop
$391Multiple Airlines
Booking Insights

KAYAK's insights & trends for Ottawa to O'Hare Intl flights

Get data-powered insights and trends into flights from Ottawa to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ottawa to Chicago O'Hare Airport?

The average price of all round-trip flights from Ottawa to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Chicago O'Hare Airport on a Saturday and more expensive on a Monday. On your return trip to Ottawa, you should consider flying back on a Saturday, and avoid Tuesdays for better deals.

What is the cheapest month to fly from Ottawa to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ottawa to Chicago O'Hare Intl Airport is September, where tickets cost $342 (return) on average. On the other hand, the most expensive months are January and March, where the average cost of round-trip tickets is $806 and $800 respectively.

Can I save money by flying with a layover from Ottawa to Chicago O'Hare Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $444 on average.

Expert advice

Expert advice for your flight from Ottawa to O'Hare Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonFebruary
Cheapest flight$197
Best time to beat the crowds but there is an average 48% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Ottawa to Chicago O'Hare Airport

When to book flights from Ottawa to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Ottawa to O'Hare Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Ottawa to Chicago O'Hare Airport flights

  • What is the cheapest flight from Ottawa to Chicago O'Hare Intl Airport?

    In the last 3 days, the lowest price for a flight from Ottawa to Chicago O'Hare Intl Airport was $197 for a one-way ticket and $347 for a round-trip.

  • Do I need a passport to fly between Ottawa and Chicago O'Hare Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Ottawa and on arrival in Chicago O'Hare Airport.

  • Which airports will I be using when flying from Ottawa to Chicago O'Hare Airport?

    When flying out of Ottawa you will be using Ottawa. You will be landing at Chicago O'Hare Airport, also known as Chicago O'Hare Intl.

  • Which airlines offer Wi-Fi service onboard planes from Ottawa to Chicago O'Hare Airport?

    Air Canada, and Cathay Pacific offer inflight Wi-Fi service on the Ottawa to Chicago O'Hare Airport flight route.

  • Which aircraft models fly most regularly from Ottawa to Chicago O'Hare Airport?

    The Embraer 195 E2 is the aircraft model that flies most regularly on the Ottawa to Chicago O'Hare Airport flight route.

  • Which airline alliances offer flights from Ottawa to Chicago O'Hare Airport?

    Star Alliance is the only airline alliance operating flights between Ottawa and Chicago O'Hare Airport.

  • On which days can I fly direct from Ottawa to Chicago O'Hare Airport?

    There are nonstop flights from Ottawa to Chicago O'Hare Airport on a daily basis.

  • How does KAYAK find such low prices on flights from Ottawa to Chicago O'Hare Airport?

    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 Ottawa to Chicago O'Hare Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ottawa to Chicago O'Hare Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from Ottawa 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 Ottawa to Chicago O'Hare Airport?

    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 Chicago O'Hare Airport with an airline and back to Ottawa with another airline. Booking your flights between Ottawa and ORD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ottawa to Chicago O'Hare Airport?

    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 Chicago O'Hare Airport from Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Ottawa to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $260 or less one-way and $427 or less round-trip.

Prefer to fly direct from Ottawa to Chicago O'Hare Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Ottawa to Chicago O'Hare Intl.
Find which airlines fly direct from Ottawa Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

Ottawa to Chicago O'Hare Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Chicago O'Hare Intl to Ottawa

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top airline flying from Ottawa to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ottawa to O'Hare Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9427 reviews
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

They never clean the toilet, and the food is worse

4.0 OkayAnonymous, Mar 2026
HND - ORD
Read more United Airlines reviews

They never clean the toilet, and the food is worse

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Chargers didn’t work, no entertainment and we had to wait for taxiing for easily 40 minutes after arriving early. Bags were late too!

No real complaints. The in flight food was much better than I expected. The in flight entertainment was excellent.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Horrible Flight significantly delayed. Not due to united issue. But trying to rebook connection flight and get information about overnight accommodation was difficult. Agent did not seem to care or have any interest to help.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

This Japanese airline provides great service and very helpful in assisting their passengers.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Everything you need to know for your flight from Ottawa to O'Hare Intl

Information on your arrival and departure airports