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YOW - ORD

Find cheap flights from Ottawa to Chicago O'Hare Airport from $207

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 5/28. 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
0 bags
Fri 5/31
Fri 6/7

Search hundreds of travel sites at once for deals on flights to Chicago O'Hare 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
In the last 7 days travelers have searched 43,740,974 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
4:15 pm - 4:35 pmYOW-ORD
25h 20m2 stops
10:58 am - 11:42 amORD-YOW
23h 44m2 stops
Tue, May 28 - Tue, Jun 4
4:15 pm - 4:35 pmYOW-ORD
25h 20m2 stops
10:58 am - 10:29 amORD-YOW
22h 31m3 stops
Tue, May 28 - Tue, Jun 4
4:15 pm - 4:35 pmYOW-ORD
25h 20m2 stops
7:35 am - 8:07 pmORD-YOW
11h 32m2 stops
Mon, May 20 - Thu, May 23
5:26 pm - 6:51 pmYOW-ORD
2h 25mnonstop
6:30 pm - 9:48 pmORD-YOW
2h 18mnonstop
$524Air Canada
Find Deal
Fri, May 24 - Thu, May 30
5:55 am - 10:01 amYOW-ORD
5h 06m1 stop
7:25 am - 10:33 amORD-YOW
2h 08mnonstop
$527Air Canada
Find Deal
Wed, Aug 21 - Sun, Aug 25
6:05 am - 10:34 amYOW-ORD
5h 29m1 stop
7:25 am - 10:33 amORD-YOW
2h 08mnonstop
$532United Airlines
Find Deal
Thu, Sep 5 - Mon, Sep 9
5:26 pm - 6:51 pmYOW-ORD
2h 25mnonstop
6:30 pm - 9:48 pmORD-YOW
2h 18mnonstop
$555United Airlines
Find Deal
Fri, May 24 - Tue, May 28
6:00 am - 5:05 pmYOW-ORD
12h 05m1 stop
5:55 pm - 6:59 amORD-YOW
12h 04m1 stop
$667WestJet
Find Deal
Fri, May 24 - Thu, May 30
3:25 pm - 4:57 pmYOW-ORD
26h 32m2 stops
5:55 pm - 6:52 amORD-YOW
11h 57m1 stop
$673WestJet
Find Deal
Sun, Jun 30 - Sat, Jul 6
8:00 am - 12:05 amYOW-ORD
17h 05m2 stops
7:40 pm - 12:44 amORD-YOW
28h 04m2 stops
$1,439Delta
Find Deal
Fri, May 17 - Mon, May 20

Flights from Ottawa to O'Hare Intl - Travel Insights & Trends

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 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 Sunday and more expensive on a Monday. On your return trip to Ottawa, you should consider flying back on a Sunday, and avoid Mondays 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 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 February, where tickets cost $450 on average. On the other hand, the most expensive months are March and April, where the average cost of tickets is $666 and $646 respectively.

How far in advance should I book a flight from Ottawa to Chicago O'Hare Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ottawa to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ottawa to Chicago O'Hare Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 30 days before departure.

Which airlines provide the cheapest flights from Ottawa to Chicago O'Hare Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Ottawa to Chicago O'Hare Airport found by KAYAK users in the last 72 hours was for $524 on Air Canada, followed by United Airlines ($532). One-way flight deals have also been found from as low as $287 on United Airlines and from $292 on Air Canada.

Which airlines fly non-stop between Ottawa and Chicago O'Hare Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Ottawa to Chicago O'Hare Intl Airport.
There is just one airline that flies from Ottawa to Chicago O'Hare Intl Airport direct and that is United Airlines. The best one-way deal found from United Airlines for the route is $517.

How many flights are there between Ottawa and Chicago O'Hare Intl Airport per day?

Each day, there are 2 nonstop flights that take off from Ottawa and land in Chicago O'Hare Intl Airport, with an average flight time of 2h 25m. The most common departure time is 5:00 pm and most flights take off in the morning. Each week, there are 14 flights and there are the same amount of flights each day 2.

Which cabin class options are there for flights between Ottawa and Chicago O'Hare Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Ottawa to Chicago O'Hare Airport take?

Nonstop flights from Ottawa generally make it to Chicago O'Hare Airport in 2h 17m. The flying distance between the two cities is 653 miles.

What’s the earliest departure time from Ottawa to Chicago O'Hare Airport?

Early birds can take the earliest flight from Ottawa at 6:35 am and will be landing in Chicago O'Hare Intl Airport at 8:00 am.

What’s the latest departure time from Ottawa to Chicago O'Hare Airport?

If you prefer to fly at night, the latest flight from Ottawa to Chicago O'Hare Intl Airport jets off at 5:26 pm and lands at 6:51 pm.

Good to know

Low season

February

High season

August

Cheapest flight

$207
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 1% increase in price.
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 $207 for a one-way ticket and $392 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?

    Only Air Canada offers 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 nonstop 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 $557 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 $557 and an overall rating of 7.0.

  • 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.

See more FAQs

Top tips for finding a cheap flight from YOW to Chicago O'Hare Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $339 or less one-way and $566 or less round-trip.

Prefer to fly non-stop from Ottawa to Chicago O'Hare Airport?

Find which airlines fly direct from Ottawa to O'Hare Intl, which days they fly and book direct flights.

Nonstop departures

Ottawa to Chicago O'Hare Intl

Monday

ANA, Air Canada, Air New Zealand, +1 more

ANA, Air Canada, +2 more

Tuesday

ANA, Air Canada, Air New Zealand, +1 more

ANA, Air Canada, +2 more

Wednesday

ANA, Air Canada, Air New Zealand, +2 more

ANA, Air Canada, +3 more

Thursday

ANA, Air Canada, Air New Zealand, +1 more

ANA, Air Canada, +2 more

Friday

ANA, Air Canada, Air New Zealand, +2 more

ANA, Air Canada, +3 more

Saturday

ANA, Air Canada, Air New Zealand, +1 more

ANA, Air Canada, +2 more

Sunday

ANA, Air Canada, Air New Zealand, +2 more

ANA, Air Canada, +3 more

See more direct flights

Nonstop returns

Chicago O'Hare Intl to Ottawa

Monday

ANA, Air Canada, Air New Zealand, +2 more

ANA, Air Canada, +3 more

Tuesday

ANA, Air Canada, Air New Zealand, +2 more

ANA, Air Canada, +3 more

Wednesday

ANA, Air Canada, Air New Zealand, +3 more

ANA, Air Canada, +4 more

Thursday

ANA, Air Canada, Air New Zealand, +2 more

ANA, Air Canada, +3 more

Friday

ANA, Air Canada, Air New Zealand, +3 more

ANA, Air Canada, +4 more

Saturday

ANA, Air Canada, Air New Zealand, +2 more

ANA, Air Canada, +3 more

Sunday

ANA, Air Canada, Air New Zealand, +3 more

ANA, Air Canada, +4 more

See more direct flights
See more direct flights

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 11159 reviews
7.7Boarding
7.1Entertainment
8.1Crew
6.7Food
7.2Comfort
Airline reviews

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

8.0 ExcellentAnonymous, Apr 2024YUL - ORD
Read more about United Airlines reviews

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

We were delayed an hour leaving Munich (No fault of the crew). They kept us posted on the status so we knew what was going on, but as a result we missed our connection in Chicago and the communication on connecting flights was pretty poor as we disembarked. It was already stressful and some of that could have been reduced by better communications about where to find transfers, etc.

One problem, but a serious one - the plane is built with electric windows that tint dark to reduce light. Sitting next to the window is VERY UNCOMFORTABLE as it emits so much HEAT in the face when tinted.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

Wifi wasn't working on one of the UA flights after boarding.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Crew was not very helpful. They forgot to serve me coffee and had to wait for a long time.It looked as if they were not very happy with what they were doing.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

It was an excellent experience, traveling from Toronto to Denver with United.

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

Flight was delayed, I had to put my luggage all the way in the back! They served only a beverage no snack on the way in Air Canada, definitely not a good first impression.

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

I didn’t like the fact that all the customs officers went to lunch so I was in line for 90 minutes due to where the staff directed me. We were told three very different reasons for why the plane was delayed. It was a crowded plane with difficult storage situations for the Carry On bags. The Air Canada airline staff were all very good and professional. I was so disappointed in my cheese and fruit box as the cheese had molded and the fruit wasn’t fresh so I couldn’t eat the majority of the food. This was the last meal I could find as the restaurants had closed when I got in to my destination. I think you could work on improving the food quality.

Once again my complaint is how close the seats are together. Also, the bathrooms were not very clean by the second half of the flight.

Excellent in flight service, perhaps the best we've ever had. Business class feels tired and needs improvement to compete with other airlines. The food looked good but tasted terrible. Check in was quick, the flight arrived early and our luggage was on our flight with us.

The staff were so kind and helpful. We flew back from NY with another airline and it was horrible. We will always stick with Air Canada as everything was far better!

The boarding process in Toronto bad as they share space with domestic flights and when those domestic flights come in you are locked out behind closed doors until they are done and then its a mad rush to get your boarding gates and board. This is not so much due to Air Canada but with the GTAA, but Air Canada could use different gates especially early morning in order to prevent such travel angst.

Terrible quality wifi and they charge a lot for it. They nickel and dime you for everything.

Book cheap flights from Ottawa to Chicago

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ottawa to Chicago found on KAYAK in the last 72 hours.
5/28Tue
2 stops
26h 25mYOW-ORD
$207
5/28Tue
3 stops
25h 25mYOW-ORD
$212
6/8Sat
2 stops
12h 42mYOW-ORD
$217
5/28Tue
nonstopUnited Airlines
2h 22mYOW-ORD
$287
6/4Tue
1 stopAir Canada
4h 36mYOW-ORD
$292
6/20Thu
1 stopAir Canada
5h 02mYOW-ORD
$294
6/19Wed
nonstopAir Canada
2h 25mYOW-ORD
$349
6/4Tue
2 stopsUnited Airlines
13h 08mYOW-ORD
$351
5/19Sun
nonstopAir Canada
2h 25mYOW-ORD
$423
5/9Thu
1 stopUnited Airlines
6h 35mYOW-ORD
$500

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Last minute flights from Ottawa to O'Hare Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ottawa to Chicago that are departing in the next 10 days.
5/3Fri
multi-stop
21h 22mYOW-ORD
5/6Mon
multi-stop
7h 56mORD-YOW
$622
5/3Fri
multi-stop
21h 22mYOW-ORD
5/6Mon
multi-stop
17h 27mORD-YOW
$641
5/2Thu
multi-stop
10h 25mYOW-ORD
5/5Sun
multi-stop
44h 05mORD-YOW
$698
5/5Sun
multi-stop
29h 20mYOW-ORD
5/7Tue
multi-stop
7h 56mORD-YOW
$722
5/5Sun
multi-stop
29h 11mYOW-ORD
5/7Tue
multi-stop
21h 07mORD-YOW
$725
5/5Sun
multi-stop
29h 11mYOW-ORD
5/7Tue
multi-stop
20h 54mORD-YOW
$730
5/5Sun
multi-stopUnited Airlines
6h 33mYOW-ORD
5/7Tue
nonstopUnited Airlines
2h 08mORD-YOW
$1,170
5/3Fri
multi-stopUnited Airlines
5h 02mYOW-ORD
5/6Mon
nonstopUnited Airlines
2h 08mORD-YOW
$1,235
5/5Sun
nonstopAir Canada
2h 25mYOW-ORD
5/7Tue
nonstopAir Canada
2h 08mORD-YOW
$1,308
5/3Fri
multi-stopDelta
12h 25mYOW-ORD
5/6Mon
multi-stopDelta
28h 54mORD-YOW
$1,436

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Ottawa - Chicago O'Hare Airport Flights

Departure:

Ottawa (YOW)Canada

Destination:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Chicago O'Hare Airport - Ottawa

Cabin classes:

$978
$1,260
$1,263
$378