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O'Hare Intl

$149+ Cheap flights from Ottawa (YOW) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — ORD
feb. 14 — feb. 211
sáb. 2/14
sáb. 2/21
1 adult, Economy
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Cheap flight deals from Ottawa to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$257
(Mytrip)

One-way from

$149
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$806

Good round-trip deal

$462 or less

Good one-way deal

$297 or less
Provider with most accurate pricing for Ottawa-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Ottawa-Chicago O'Hare Intl flights.
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From Ottawa to Chicago O'Hare Intl
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One-way flight from Ottawa to Chicago O'Hare Intl
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Highest demand for flights based on searches. 18% potential increase in price ($120 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Ottawa to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Ottawa to Chicago O'Hare Intl.
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Find flight deals from Ottawa to O'Hare Intl

Cheapest flights from Ottawa to O'Hare Intl
Explore the most affordable flight options available from Ottawa to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 15, 2026.

This Mytrip deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/117:00 am
YOW
-
ORD
1 stop15h 03m
Multiple Airlines
mié. 2/187:00 am
ORD
-
YOW
1 stop16h 25m
Multiple Airlines
Deal found 1/13$257
This Kiwi.com deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/24:15 pm
YOW
-
ORD
1 stop20h 07m
Multiple Airlines
mié. 2/187:00 am
ORD
-
YOW
1 stop16h 25m
Multiple Airlines
Deal found 1/13$258
This Kiwi.com deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/104:15 pm
YOW
-
ORD
1 stop20h 07m
Multiple Airlines
mar. 2/174:43 pm
ORD
-
YOW
1 stop30h 42m
Multiple Airlines
Deal found 1/13$262
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/24:15 pm
YOW
-
ORD
2 stops20h 32m
Multiple Airlines
mié. 2/47:20 am
ORD
-
YOW
1 stop16h 05m
Multiple Airlines
Deal found 1/14$266
This Kiwi.com deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 1/304:20 pm
YOW
-
ORD
1 stop25h 20m
Multiple Airlines
mié. 2/187:00 am
ORD
-
YOW
1 stop16h 25m
Multiple Airlines
Deal found 1/13$273
This Kiwi.com deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/73:55 pm
YOW
-
ORD
1 stop7h 47m
Multiple Airlines
mar. 2/1012:44 pm
ORD
-
YOW
1 stop27h 29m
Multiple Airlines
Deal found 1/13$276
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/297:00 am
YOW
-
ORD
1 stop13h 38m
Multiple Airlines
vie. 1/304:38 pm
ORD
-
YOW
1 stop22h 52m
Multiple Airlines
Deal found 1/14$278
This Kiwi.com deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/128:40 am
YOW
-
ORD
2 stops17h 00m
Multiple Airlines
dom. 2/156:51 pm
ORD
-
YOW
1 stop16h 49m
Multiple Airlines
Deal found 1/13$283

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 15, 2026.
Use the filters below to find and compare flights from Ottawa to Chicago O'Hare Intl Airport that are best for you.

Fly from

Ottawa

Fly to

O'Hare Intl

Route

Depart

Return

Price

OttawaChicago

YOW - ORD

YOWORD

Ottawa

mié. 2/11

7:00 am-9:03 pm

1 stop15h 03m

Chicago O'Hare Intl

mié. 2/18

7:00 am-12:25 am

1 stop16h 25m

$257

OttawaChicago

YOW - ORD

YOWORD

Ottawa

lun. 2/2

4:15 pm-11:22 am

1 stop20h 07m

Chicago O'Hare Intl

mié. 2/18

7:00 am-12:25 am

1 stop16h 25m

$258

OttawaChicago

YOW - ORD

YOWORD

Ottawa

vie. 1/30

4:20 pm-4:40 pm

1 stop25h 20m

Chicago O'Hare Intl

mié. 2/18

7:00 am-12:25 am

1 stop16h 25m

$273

OttawaChicago

YOW - ORD

YOWORD

Ottawa

dom. 2/22

4:35 pm-1:03 pm

2 stops21h 28m

Chicago O'Hare Intl

vie. 2/27

6:40 am-5:25 pm

1 stop9h 45m

$300

OttawaChicago

YOW - ORD

YOWORD

Ottawa

vie. 2/13

4:40 pm-12:40 am

2 stops9h 00m

Chicago O'Hare Intl

mié. 2/25

7:00 am-5:25 pm

1 stop9h 25m

$338

OttawaChicago

YOW - ORD

YOWORD

Ottawa

vie. 1/30

9:15 am-10:42 pm

2 stops14h 27m

Chicago O'Hare Intl

lun. 2/2

6:57 pm-12:25 am

3 stops28h 28m

$354

OttawaChicago

YOW - ORD

YOWORD

Ottawa

vie. 3/6

3:35 pm-12:40 am

2 stops10h 05m

Chicago O'Hare Intl

mar. 3/10

6:51 pm-5:25 pm

1 stop21h 34m

$355

OttawaChicago

YOW - ORD

YOWORD

Ottawa

lun. 2/23

1:20 pm-9:22 am

2 stops21h 02m

$168

OttawaChicago

YOW - ORD

YOWORD

Ottawa

sáb. 2/28

3:55 pm-12:40 am

1 stop9h 45m

$176

OttawaChicago

YOW - ORD

YOWORD

Ottawa

mié. 2/18

4:15 pm-11:24 pm

1 stop32h 09m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 15 results
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Compare providers for flights from Ottawa to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ottawa to O'Hare Intl in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ottawa-Chicago O'Hare Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ottawa-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ottawa-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ottawa-Chicago O'Hare Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ottawa to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Ottawa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Ottawa to Chicago O'Hare Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Ottawa to Chicago O'Hare Intl Airport (average of $162). Flying from Ottawa to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $282). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YOW to ORD?

Find hourly flight availability from Ottawa to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 15, 2026.

When flying from Ottawa to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Ottawa to Chicago O'Hare Intl Airport?

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated enero 15, 2026.
Read reviews from past customers who have flown United Airlines and Air Canada from Ottawa to Chicago O'Hare Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,163 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,163 reviews
United Airlines
7.4
Good
9,163 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Air Canada
7.1
Good
10,622 reviews
United Airlines
7.4
Good
9,163 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ottawa to Chicago O'Hare Intl?

    Ottawa (YOW), located 6.6 mi from the city center, is the airport you fly out of when you book flights from Ottawa to Chicago O'Hare Intl. 2 airlines have flights from Ottawa to Chicago O'Hare Intl on a regular basis. Booking flights from Ottawa to Chicago O'Hare Intl should not be difficult; the airport handles an average of 7 outbound flights to Chicago O'Hare Intl per day.

  • What are the cheapest airlines flying from Ottawa to Chicago O'Hare Intl Airport round-trip?

    According to our current data, Air Canada ($306), and United Airlines ($324) offers the cheapest pricing from Ottawa to Chicago O'Hare Intl Airport. These flights start at 40% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Ottawa to Chicago O'Hare Intl Airport?

    The top 3 most reliable airlines when flying from Ottawa to Chicago O'Hare Intl Airport are SkyWest Airlines (100%), ANA (83%) and Avianca (82%).

  • What are the cheapest flights from Ottawa to Chicago O'Hare Intl Airport?

    On average you can expect to pay $783 for a flight from Ottawa to Chicago O'Hare Intl Airport. The cheapest flight overall is $173 while the most popular route, (Ottawa - Chicago O'Hare Intl) is currently priced at $266.

  • Can I find deals for flights from Ottawa to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Ottawa to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to O'Hare Intl.

  • Can I find deals for business class flights from Ottawa to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Ottawa to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, October is the cheapest month in which you can book a flight from Ottawa to Chicago O'Hare Intl Airport (average of $162). Flying from Ottawa to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $282). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Gurnee
Elgin
Naperville
Hoffman Estates
Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
Elk Grove Village
Skokie
Libertyville
Lake Geneva
Bridgeview
Kenosha
Warrenville
Waukegan
Aurora

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Ottawa to O'Hare Intl

Discover the top 2 airlines that operate flights from Ottawa to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$306Average$550FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$324Average$580FlexibilityNo cancel feeOn-time69%

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