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O'Hare Intl

$129+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ORD
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl are usually found in May or September, booked 83 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) 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 April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$229
(Air Canada)

One-way from

$129
(Air Canada)

Popular in

January

Cheapest in

May

Average price

$392

Good round-trip deal

$300 or less

Good one-way deal

$178 or less
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-Chicago O'Hare Intl flights.
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From Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl
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One-way flight from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl
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Highest demand for flights based on searches. 9% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl.
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Find flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl

Cheapest flights from Pierre Elliott Trudeau Intl to O'Hare Intl
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This Air Canada deal was found by Cheapflights users on 4/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2210:15 amYUL - ORD
1 stop4h 46mAir Canada
Mon 5/268:25 pmORD - YUL
1 stop4h 26mAir Canada
Deal found 4/23$229
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2212:30 pmYUL - ORD
Nonstop2h 35mAmerican Airlines
Mon 5/268:24 amORD - YUL
Nonstop2h 20mAmerican Airlines
Deal found 4/23$231
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/212:56 pmYUL - ORD
1 stop4h 34mDelta
Fri 6/61:45 pmORD - YUL
1 stop8h 31mDelta
Deal found 4/23$238
This United deal was found by Cheapflights users on 4/22. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/28:20 amYUL - ORD
Nonstop2h 32mMultiple Airlines
Fri 6/610:00 amORD - YUL
1 stop5h 21mMultiple Airlines
Deal found 4/22$261
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/226:40 pmYUL - ORD
Nonstop2h 32mUnited Airlines
Mon 5/267:19 amORD - YUL
Nonstop2h 21mUnited Airlines
Deal found 4/23$276
This WestJet deal was found by Cheapflights users on 4/23. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/216:00 amYUL - ORD
1 stop7h 41mWestJet
Mon 5/266:24 amORD - YUL
2 stops17h 19mWestJet
Deal found 4/23$335

Cheapflights Fare Finder

Customize your flight search to find flights from Pierre Elliott Trudeau Intl 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 April 24, 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

O'Hare Intl

Route

Depart

Return

Price

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 5/22

10:15 am-2:01 pm

1 stop4h 46m

Chicago O'Hare Intl

Mon 5/26

8:25 pm-1:51 am

1 stop4h 26m

$229

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 5/22

12:30 pm-2:05 pm

Nonstop2h 35m

Chicago O'Hare Intl

Mon 5/26

8:24 am-11:44 am

Nonstop2h 20m

$231

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 6/2

12:56 pm-4:30 pm

1 stop4h 34m

Chicago O'Hare Intl

Fri 6/6

1:45 pm-11:16 pm

1 stop8h 31m

$238

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 6/2

8:20 am-9:52 am

Nonstop2h 32m

Chicago O'Hare Intl

Fri 6/6

10:00 am-4:21 pm

1 stop5h 21m

$261

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 5/22

6:40 pm-8:12 pm

Nonstop2h 32m

Chicago O'Hare Intl

Mon 5/26

7:19 am-10:40 am

Nonstop2h 21m

$276

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 6/7

7:00 am-12:20 pm

1 stop6h 20m

Chicago O'Hare Intl

Sat 6/7

3:45 pm-11:19 pm

1 stop6h 34m

$329

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 5/23

6:15 am-7:59 am

Nonstop2h 44m

$129

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 5/14

12:30 pm-2:05 pm

Nonstop2h 35m

$130

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 5/27

6:00 am-12:41 pm

1 stop7h 41m

$148

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 5/16

8:05 am-12:29 am

1 stop17h 24m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 12 results
1
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Compare providers for flights from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl to O'Hare Intl in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice 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 Montreal Pierre Elliott Trudeau Intl Airport-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-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 Montreal Pierre Elliott Trudeau Intl Airport-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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 original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport trip
Airports
YUL

Use YULExpress to pre-book security fast track up to 72 hours before departure for a smoother experience.

Read more about YULby John Walton
ORD

For a quick exit, take the 'L' train from ORD to downtown Chicago, avoiding traffic delays.

Read more about ORDby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
John Walton

John Walton

Expert on YUL

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more

Best time to book a flight from Pierre Elliott Trudeau Intl to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Pierre Elliott Trudeau Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to O'Hare Intl. Price data was last updated on April 18, 2025.

The best time to book flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 YUL to ORD?

Find hourly flight availability from Pierre Elliott Trudeau Intl 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 April 24, 2025.

It’s optimal to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport at noon. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Pierre Elliott Trudeau Intl to O'Hare Intl. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

Explore weekly flight availability from Pierre Elliott Trudeau Intl to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 24, 2025.

The most flights from YUL to ORD are scheduled on a Tuesday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 April 24, 2025.
Read through reviews of airlines operating flights from Montreal to Chicago, such as Delta, United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,685 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,816 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
9,192 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl 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 are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport round-trip?

    According to our current data, Air Canada ($229), American Airlines ($231), and Delta ($238) offers the cheapest pricing from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport. Air Canada is currently priced 42% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport one-way?

    The cheapest airlines for a one-way flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport are Air Canada ($129), American Airlines ($130), and Delta ($148).

  • What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport on time: Sun Country Air (100%), Emirates (93%), ANA (91%).

  • What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    While on average a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport is generally $985, our data shows the cheapest flight currently is $148. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl), you can expect to pay $219 for that flight.

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

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

  • How can I find direct flights from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl to O'Hare Intl.

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

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Schaumburg
Hoffman Estates
Rosemont
Beloit
Racine
Skokie
Naperville
Tinley Park
Kenosha
Rockford
Arlington Heights
Elgin
Joliet
Orland Park
Merrillville
Northbrook
Des Plaines
Lake Geneva
Waukegan
Glenview

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Alternative routes for Pierre Elliott Trudeau Intl to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Midway flights

Top 4 airlines flying from Pierre Elliott Trudeau Intl to O'Hare Intl

Discover the top 4 airlines that operate flights from Pierre Elliott Trudeau Intl 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$112Average$495FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$251Average$463FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$282Average$386FlexibilityNo cancel feeOn-time71%
WestJetCheapest$334Average$354FlexibilityNo cancel feeOn-time60%

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