YOW - ORD

C$ 252 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 19/5. 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
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Everything you should know

Cheapest round-trip
C$ 483
Typical prices: C$ 763-C$ 547
Multiple Airlines
Tue 19/5Tue 26/5
YOW - ORD • 2 stops
Cheapest direct flights
C$ 869
Typical prices: C$ 824-C$ 549
United Airlines
Sat 30/5Tue 2/6
YOW - ORD • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Priority Boarding helps with carry-on space.
Ottawa airport has quick security lines for travelers.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from C$ 535 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with United Airlines. Average duration is 2h 28m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to travel
Cheapest • 39% price drop
Most popular
Good to know
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+1
+1
Good to know
Good to know
+1
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We hope you love your trip to O'Hare Intl!
Flight Deals
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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

Tue, 19 May - Tue, 26 May
Multiple Airlines Logo
7:00 a.m. - 11:13 p.m.
YOW
-
ORD
17h 13m
2 stops
Multiple Airlines Logo
5:30 p.m. - 6:00 p.m.
ORD
-
YOW
23h 30m
1 stop
C$ 483Multiple Airlines
Wed, 20 May - Mon, 25 May
WestJet Logo
7:20 a.m. - 4:40 p.m.
YOW
-
ORD
10h 20m
1 stop
WestJet Logo
5:30 p.m. - 5:35 a.m.
ORD
-
YOW
11h 05m
1 stop
C$ 535WestJet
Tue, 19 May - Tue, 26 May
Multiple Airlines Logo
7:00 a.m. - 10:14 p.m.
YOW
-
ORD
16h 14m
2 stops
Multiple Airlines Logo
5:30 p.m. - 2:55 p.m.
ORD
-
YOW
20h 25m
2 stops
C$ 546Multiple Airlines
Mon, 1 Jun - Thu, 4 Jun
Multiple Airlines Logo
7:00 a.m. - 12:37 p.m.
YOW
-
ORD
30h 37m
1 stop
Multiple Airlines Logo
12:59 p.m. - 12:17 p.m.
ORD
-
YOW
22h 18m
1 stop
C$ 547Multiple Airlines
Thu, 21 May - Mon, 25 May
American Airlines Logo
8:40 a.m. - 2:17 p.m.
YOW
-
ORD
6h 37m
1 stop
American Airlines Logo
8:08 a.m. - 2:30 p.m.
ORD
-
YOW
5h 22m
1 stop
C$ 549American Airlines
Mon, 25 May - Mon, 1 Jun
Multiple Airlines Logo
7:20 a.m. - 4:40 p.m.
YOW
-
ORD
10h 20m
1 stop
Multiple Airlines Logo
7:33 p.m. - 5:37 p.m.
ORD
-
YOW
21h 04m
2 stops
C$ 554Multiple Airlines
Tue, 26 May - Tue, 2 Jun
Multiple Airlines Logo
9:05 a.m. - 8:11 p.m.
YOW
-
ORD
12h 06m
1 stop
Multiple Airlines Logo
1:49 p.m. - 5:37 p.m.
ORD
-
YOW
26h 48m
1 stop
C$ 561Multiple Airlines
Tue, 26 May - Tue, 2 Jun
Multiple Airlines Logo
9:05 a.m. - 8:11 p.m.
YOW
-
ORD
12h 06m
1 stop
Multiple Airlines Logo
5:05 a.m. - 8:05 p.m.
ORD
-
YOW
14h 00m
2 stops
C$ 564Multiple Airlines
Fri, 29 May - Tue, 2 Jun
Multiple Airlines Logo
7:00 a.m. - 11:13 p.m.
YOW
-
ORD
17h 13m
1 stop
Multiple Airlines Logo
5:05 a.m. - 8:05 p.m.
ORD
-
YOW
14h 00m
2 stops
C$ 565Multiple Airlines
Fri, 29 May - Mon, 1 Jun
Multiple Airlines Logo
7:00 a.m. - 11:13 p.m.
YOW
-
ORD
17h 13m
1 stop
Multiple Airlines Logo
1:50 p.m. - 4:53 p.m.
ORD
-
YOW
26h 03m
2 stops
C$ 568Multiple 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.

How much is a round-trip flight from Ottawa to Chicago O'Hare Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ottawa to Chicago O'Hare Intl Airport departing in May.

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.

If you are looking for a flight deal from Ottawa to Chicago O'Hare Airport, look for departures on Saturdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Chicago O'Hare Airport, Monday is the cheapest day to fly and Sunday is the most expensive.

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 C$ 468 (return) on average. On the other hand, the most expensive months are March and January, where the average cost of round-trip tickets is C$ 1,211 and C$ 1,103 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 C$ 737 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 United Airlines, Air Canada and ORD

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.

Mark Stachiew

Mark Stachiew

Expert on YOW

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Good to know

Low seasonMarch
Cheapest flightC$ 252
Best time to beat the crowds but there is an average 57% increase in price.
Most popular time to fly and prices are also 22% 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 C$ 252 for a one-way ticket and C$ 483 for a round-trip.

  • 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 175 (Enhanced Winglets) 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 direct flights from Ottawa to Chicago O'Hare Airport on a daily basis.

  • Which is the best airline for flights from Ottawa to Chicago, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Ottawa to Chicago are United Airlines and Air Canada. With an average price for the route of C$ 572 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 548 and an overall rating of 7.1.

  • 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 travellers 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.

  • 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 C$ 314 or less one-way and C$ 587 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 nonstop 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 nonstop flights

Reviews of the top airlines 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 9679 reviews
7.3Comfort
7.7Boarding
7.1Entertainment
8.1Crew
6.6Food
Airline reviews

Flight crew was super friendly and helpful. Food was frequent and honestly pretty good. Plenty of on-board entertainment. Economy seats are super cramped for such a long flight, but the crew allowed people to get up and stretch, and kids could wander with their parents, so we all made it work. Overall a very good experience.

8.0 ExcellentAnonymous, Apr 2026
ZRH - ORD
Read more United Airlines reviews

Flight crew was super friendly and helpful. Food was frequent and honestly pretty good. Plenty of on-board entertainment. Economy seats are super cramped for such a long flight, but the crew allowed people to get up and stretch, and kids could wander with their parents, so we all made it work. Overall a very good experience.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

Very comfortable flight, snacks and drinks were good, good communication from crew. Could have used a little more information on timing of boarding for group 5

The crew was amazing! I was a bit surprised and disappointed that there was not wifi available for personal use. The only thing I would change would be the seat cushions. They are not comfortable at all for long flights.

After 3 hours of delays, they ended up cancelling my flight. And although I could purchase one-way tickets to get to my destination, they would not offer me these flights as compensation for the cancelled flight, and I didn't end up making it home until 13 hours after I was originally supposed to arrive. It made for an extremely strenuous end to an otherwise good trip.

It was a very small plane and was ok. No food or entertainment so there should be an option for NA.

We were happy with the service and cost of checking a bag

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

Flying with Air Canada is still better than the discount airlines like Flair. The seats are more comfortable and the on-board entertainment is better, with each seat having a built in screen and lots of content to watch. Onboard WIFI is also great to have, as well as plugs for charging. I think passengers in general are getting better at not bringing too much luggage onboard, and Air Canada is better at managing this without customers feeling like they are being taken advantage of with extra fees. I have travelled on different airlines and all seem to be loading faster, with fewer people bringing both a carry on and a personal item. Now I just bring one item and it fits under the seat so I don't need to worry about finding a place in the overhead bins. Overall, across the industry, asking customers to pay for carry on baggage is fair because it allows customers to only pay for what they need, and it helps to keep the planes on time. Kudos to Air Canada for its approach - the desired result is achieved without customers feeling that they are being surprised and caught with unexpected extra fees.

Due to the strike by AC flight attendants, my flight was cancelled. Very disappointing! A refund is being processed. This was not a Kayak issue. I will be sure to come back to Kayak in the future.

Bad service as well. Another 3hr delayed flight from chicago to Charlotte.

Very bad service the way back we was on the way for r two days very bad condition and waiting for luggage till now

United had no (zero) record of our flight. It took over an hour of us standing in line with surly employee while others waited to get resolved. I have never experienced such poor service and poor empathy.

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

Information on your arrival and departure airports