YOW - ORD

C$ 195 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 13/6. 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

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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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.

Recent round-trip flight deals from Ottawa to O'Hare Intl

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ottawa to O'Hare Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Air Canada Logo
6:00 a.m. - 9:52 a.m.YOW-ORD
4h 52m1 stop
Air Canada Logo
9:35 a.m. - 3:04 p.m.ORD-YOW
4h 29m1 stop
C$ 332Air Canada
Find Deal
Sat, 24 May - Sat, 31 May
Air Canada Logo
5:25 p.m. - 6:54 p.m.YOW-ORD
2h 29mdirect
Air Canada Logo
6:19 p.m. - 9:35 p.m.ORD-YOW
2h 16mdirect
C$ 343Air Canada
Find Deal
Sat, 17 May - Sun, 18 May
United Airlines Logo
6:30 a.m. - 12:01 p.m.YOW-ORD
6h 31m1 stop
United Airlines Logo
6:15 p.m. - 9:35 p.m.ORD-YOW
2h 20mdirect
C$ 360United Airlines
Find Deal
Thu, 22 May - Mon, 26 May
United Airlines Logo
6:30 a.m. - 10:54 a.m.YOW-ORD
5h 24m1 stop
United Airlines Logo
3:50 p.m. - 9:09 p.m.ORD-YOW
4h 19m1 stop
C$ 377United Airlines
Find Deal
Thu, 22 May - Mon, 26 May
 Logo
5:55 a.m. - 12:55 p.m.YOW-ORD
8h 00m1 stop
 Logo
6:30 p.m. - 12:22 a.m.ORD-YOW
4h 52m1 stop
C$ 414
Find Deal
Sat, 7 Jun - Sat, 14 Jun
 Logo
5:55 a.m. - 5:24 p.m.YOW-ORD
12h 29m1 stop
 Logo
10:00 a.m. - 12:22 a.m.ORD-YOW
13h 22m1 stop
C$ 431
Find Deal
Sat, 7 Jun - Sat, 14 Jun
WestJet Logo
5:55 a.m. - 10:41 p.m.YOW-ORD
17h 46m2 stops
WestJet Logo
7:10 a.m. - 12:22 a.m.ORD-YOW
16h 12m2 stops
C$ 727WestJet
Find Deal
Mon, 12 May - Sun, 18 May
WestJet Logo
5:15 p.m. - 4:44 p.m.YOW-ORD
24h 29m2 stops
WestJet Logo
5:30 p.m. - 6:45 a.m.ORD-YOW
12h 15m1 stop
C$ 782WestJet
Find Deal
Thu, 8 May - Sat, 10 May
Delta Logo
6:10 a.m. - 11:59 p.m.YOW-ORD
18h 49m2 stops
Delta Logo
6:15 p.m. - 6:21 p.m.ORD-YOW
23h 06m2 stops
C$ 872Delta
Find Deal
Fri, 6 Jun - Tue, 10 Jun
Delta Logo
5:55 a.m. - 9:51 a.m.YOW-ORD
28h 56m2 stops
Delta Logo
6:40 a.m. - 12:22 a.m.ORD-YOW
16h 42m2 stops
C$ 956Delta
Find Deal
Sun, 25 May - Sun, 1 Jun

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

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are specific to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Air Canada

Air Canada offers priority boarding for Business Class and elite status passengers, enhancing travel efficiency.


Air Canada's Wi-Fi is free for messaging to Aeroplan members, ideal for staying connected.

Read more about Air Canadaby Stefanie Waldek
United Airlines

United offers Priority Boarding to avoid overhead bin space issues, useful for carry-on bags.


United's Wi-Fi offers free messaging; check coverage map for quality before purchasing.

Airports
YOW

Ottawa airport offers quick security lines due to low flight volume. Check estimated wait times online before heading to the gate.

Read more about YOWby Mark Stachiew
ORD

Take the CTA Blue Line train from ORD to downtown Chicago in about 45 minutes, avoiding traffic delays.

Read more about ORDby Stefanie Waldek
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada, United Airlines and ORD

Stefanie Waldek

Stefanie Waldek

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.

Read more
Mark Stachiew

Mark Stachiew

Expert on YOW

Mark Stachiew

Mark Stachiew

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.

Read more

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.
If you are looking for a flight deal from Ottawa to Chicago O'Hare Airport, look for departures on Tuesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Chicago O'Hare Airport, Thursday 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 December, where tickets cost C$ 645 (return) on average. On the other hand, the most expensive months are March and July, where the average cost of round-trip tickets is C$ 953 and C$ 861 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure 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 average of all the values for each week.
To get a below average price on the flight from Ottawa to Chicago O'Hare Intl Airport, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low season

January

High season

October

Cheapest flight

C$ 195
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 7% 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$ 141 for a one-way ticket and C$ 240 for a round-trip.

  • 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 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$ 759 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$ 721 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 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.

See more FAQs

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$ 322 or less one-way and C$ 566 or less round-trip.

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

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

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, +2 more

ANA,Air Canada, +3 more

Thursday

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

ANA,Air Canada, +3 more

Friday

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

ANA,Air Canada, +3 more

Saturday

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

ANA,Air Canada, +3 more

Sunday

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

ANA,Air Canada, +3 more

See more nonstop flights

Direct returns

Chicago O'Hare Intl to Ottawa

Monday

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

ANA,Air Canada, +4 more

Tuesday

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

ANA,Air Canada, +4 more

Wednesday

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

ANA,Air Canada, +4 more

Thursday

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

ANA,Air Canada, +4 more

Friday

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

ANA,Air Canada, +4 more

Saturday

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

ANA,Air Canada, +4 more

Sunday

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

ANA,Air Canada, +4 more

See more nonstop flights
See more nonstop 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 8685 reviews
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
Airline reviews

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

10.0 ExcellentDr. Joseph, Apr 2025IAH - ORD
Read more United Airlines reviews

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

Very modern plane. Good seat spacing. Meals were good. Screens had tons of movies and worked

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The crew were very nice. The Chocolate is good and v there’s no entertainment. Thanks

The crew were very nice. I would have appreciated a pillow for comfort. I had a special meal that was sloppy, but the salad was great. Thanks

The plane was in Moline all night. Consequently, we assumed an on time departure at 8:15am. Unfortunately, and as is the normal case with United in Moline, we departed 2.5 hours late. When the crew came, it was discovered that there was very little heat in the plane. Seems this should have been checked hours before the crew arrived. Then when we boarded and the plane was to be de-iced, the United de-icing truck was not working! We awaited the American Airlines truck. All of this caused us to miss our connection in Chicago. My suggestion is never take United Airlines flight from Moline. We have been disappointed 80% of the time and have vowed to not take United again from Moline.

Flight was delayed two hours. No snacks and no tv screens. My bag got stuck in Chicago

The aircrew was solid, the flight was chill, I had no issues. The gate agent was not the best. I was trying to use a military bag upgrade to move my bag from under the seat to the overhead bins and he told me there’s no overhead bins on the plane, argued with me why booking put a military member in basic economy (I don’t really understand this) and made it an issue to even try to help me stating I’d have to call reservations to get a bag upgrade. When every other agent with United can add it at the gate, this man couldn’t be bothered.

They lost my checked in luggage, why do I pay for my cargo not arriving at the same destination as me?

My flight was overbooked and they would not let me board. I had to book another flight and pay the full amount of that flight. I did not get any help at all from Air Canada or United Airlines.

Everything was made rather simple, so I appreciate that. All the people I dealt with from entering the airport in Jacksonville to my lonnnnnnng walk to my next gate in Chicago were excellent and very helpful.

Terrible. 3 missed flights and 24 hours delayed with lost bag and promised $100 compensation from United and absolutely nothing from them…

Poor planning meant the plane was delayed an hour, then a thunder storm started and the ground staff couldn't work. Eventual arrival in Santiago was 3 hours late resulting in missed connections and the need to buy new tickets.

The take off was delayed as we were told that the baggages had to be rearranged to balance the weight. I only took a carry-on and a personal item, but the overhead bin was extremely small, even a normal size carryon can’t fit it, so they had to check it in for free. The seat was really tight and no entertainment at all.

flight was delayed 6 hours for weather, then cancelled because of the crash in toronto, but none of the links to cancel or rebook my flights are working

The pork noodles were disgusting. The tuna sandwich had hardly any tuna and the bread was stale. A salad would have been better. An apple or a muffin.

Ok Did not like that the second leg of flight was moved earlier making it a rush to make it

Air Canada is the worst but the only option for my route

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

Information on your arrival and departure airports

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