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$155+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Chicago (CHI)

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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — CHI
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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1. Tell us where you want to go
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Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Chicago are usually found in September or April, booked 56 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap flight deals from Pierre Elliott Trudeau Intl to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Chicago (CHI). 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$240
(FlightHub)

One-way from

$155
(Air Canada)

Popular in

December

Cheapest in

September

Average price

$333

Good round-trip deal

$291 or less

Good one-way deal

$193 or less
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-Chicago (CHI) flights.
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From Montreal Pierre Elliott Trudeau Intl to Chicago (CHI)
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One-way flight from Montreal Pierre Elliott Trudeau Intl to Chicago (CHI)
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Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to Chicago (CHI).
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Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to Chicago (CHI).
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Find flight deals from Pierre Elliott Trudeau Intl to Chicago

Cheapest flights from Pierre Elliott Trudeau Intl to Chicago
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Booking.com deal was found by Cheapflights users on 3/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/101:10 pmYUL - ORD
1 stop5h 14mAir Canada
Sat 5/178:40 amORD - YUL
Nonstop2h 15mAir Canada
Deal found 3/25$238
This FlightHub deal was found by Cheapflights users on 3/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/176:50 amYUL - MDW
1 stop4h 30mPorter Airlines
Tue 4/225:35 pmMDW - YUL
1 stop4h 12mPorter Airlines
Deal found 3/27$240
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Wed 4/301:15 pmYUL - ORD
Nonstop2h 40mUnited Airlines
Sun 5/47:00 amORD - YUL
Nonstop2h 28mUnited Airlines
Deal found 3/26$245
This Delta deal was found by Cheapflights users on 3/27. 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.
Sat 4/197:10 amYUL - MDW
1 stop6h 25mDelta
Sun 4/206:04 amMDW - YUL
1 stop9h 48mDelta
Deal found 3/27$262
This United deal was found by Cheapflights users on 3/26. 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.
Sat 4/196:20 pmYUL - ORD
Nonstop2h 40mMultiple Airlines
Sun 4/201:56 pmORD - YUL
1 stop6h 45mMultiple Airlines
Deal found 3/26$263
This Delta deal was found by Cheapflights users on 3/26. 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.
Sat 4/193:06 pmYUL - ORD
1 stop9h 53mDelta
Sun 4/276:45 amORD - YUL
1 stop8h 15mDelta
Deal found 3/26$269
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Fri 4/2512:30 pmYUL - ORD
Nonstop2h 35mAmerican Airlines
Fri 5/28:30 pmORD - YUL
1 stop12h 20mAmerican Airlines
Deal found 3/27$287
This FlightHub deal was found by Cheapflights users on 3/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:00 pmYUL - ORD
1 stop6h 46mWestJet
Thu 11/275:20 pmORD - YUL
1 stop4h 58mWestJet
Deal found 3/25$309
This Kissandfly.com deal was found by Cheapflights users on 3/27. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1910:00 amYUL - MDW
2 stops10h 47mMultiple Airlines
Sun 4/2011:15 amMDW - YUL
1 stop5h 47mMultiple Airlines
Deal found 3/27$336
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/216:45 amYUL - MDW
2 stops15h 53mWestJet
Tue 6/249:21 amMDW - YUL
1 stop12h 57mWestJet
Deal found 3/27$341

Cheapflights Fare Finder

Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Chicago 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 March 28, 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Chicago

Route

Depart

Return

Price

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 5/10

1:10 pm-5:24 pm

1 stop5h 14m

Chicago O'Hare Intl

Sat 5/17

8:40 am-11:55 am

Nonstop2h 15m

$238

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Thu 4/17

6:50 am-10:20 am

1 stop4h 30m

Chicago Midway

Tue 4/22

5:35 pm-10:47 pm

1 stop4h 12m

$240

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 4/30

1:15 pm-2:55 pm

Nonstop2h 40m

Chicago O'Hare Intl

Sun 5/4

7:00 am-10:28 am

Nonstop2h 28m

$245

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sat 4/19

7:10 am-12:35 pm

1 stop6h 25m

Chicago Midway

Sun 4/20

6:04 am-4:52 pm

1 stop9h 48m

$262

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/19

6:20 pm-8:00 pm

Nonstop2h 40m

Chicago O'Hare Intl

Sun 4/20

1:56 pm-9:41 pm

1 stop6h 45m

$263

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/19

3:06 pm-11:59 pm

1 stop9h 53m

Chicago O'Hare Intl

Sun 4/27

6:45 am-4:00 pm

1 stop8h 15m

$269

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 4/25

12:30 pm-2:05 pm

Nonstop2h 35m

Chicago O'Hare Intl

Fri 5/2

8:30 pm-9:50 am

1 stop12h 20m

$287

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 7/29

6:00 am-8:34 pm

1 stop15h 34m

Chicago O'Hare Intl

Sat 8/2

9:30 am-11:18 pm

1 stop12h 48m

$309

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sat 4/19

10:00 am-7:47 pm

2 stops10h 47m

Chicago Midway

Sun 4/20

11:15 am-6:02 pm

1 stop5h 47m

$336

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sat 6/21

6:45 am-9:38 pm

2 stops15h 53m

Chicago Midway

Tue 6/24

9:21 am-11:18 pm

1 stop12h 57m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 20 results
1
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Compare providers for flights from Pierre Elliott Trudeau Intl to Chicago

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 Chicago in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 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 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 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 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 flights, Cheapflights users trust FlightHub the most. FlightHub 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 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 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 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 city transfer, 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 Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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

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

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to Chicago. Price data was last updated on March 21, 2025.

The best time to book flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago is 56 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?

Currently, August is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago (average of $245). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago in March is currently the most expensive (average of $323). 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 CHI?

Find hourly flight availability from Pierre Elliott Trudeau Intl to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

It’s optimal to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago at noon. By choosing this option you can save up to 22% 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?

Use this chart to determine the cheapest time to fly round-trip from Pierre Elliott Trudeau Intl to Chicago. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to Chicago flight should consider departing on Thursday evenings 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.

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago 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 when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, 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 Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated March 28, 2025.
Get a feel of what it's like to fly with Delta, Porter Airlines and United Airlines from Montreal to Chicago by reading reviews from past customers. 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.
Delta
8.0
Very good
7,897 reviews

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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
Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
7,897 reviews

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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
8,603 reviews
Delta
8.0
Very good
7,897 reviews

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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
7,897 reviews

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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
2,785 reviews
Delta
8.0
Very good
7,897 reviews

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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 Chicago. 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 round-trip?

    Porter Airlines, at $240, was found to be the cheapest airline from Montreal Pierre Elliott Trudeau Intl Airport to Chicago.Alternate airlines to your destination round-trip include Air Canada and United Airlines. Porter Airlines is 27% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $155. Users have also found prices from $161 and $162 on Porter Airlines and United Airlines, respectively.

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

    Before booking your flight to Chicago from Montreal Pierre Elliott Trudeau Intl Airport, check out the most reliable airlines to get you to your destination on time: Emirates (100%), ANA (89%), Avianca( 87%).

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

    The cheapest flight price from Montreal Pierre Elliott Trudeau Intl Airport to Chicago is $158. On average you can expect to pay $1,521. The most popular route, (Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl), can usually be booked for $245.

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

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

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Chicago?

    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 Chicago.

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

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Chicago 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?

    Currently, August is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago (average of $245). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago in March is currently the most expensive (average of $323). 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
Merrillville
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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Alternative routes for Pierre Elliott Trudeau Intl to Chicago

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

Top 5 airlines flying from Pierre Elliott Trudeau Intl to Chicago

Discover the top 5 airlines that operate flights from Pierre Elliott Trudeau Intl to Chicago. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$112Average$495FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$256Average$464FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$267Average$325FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$282Average$387FlexibilityNo cancel feeOn-time71%
WestJetCheapest$334Average$363FlexibilityNo cancel feeOn-time60%
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