What are the most popular airlines that fly from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

The most popular airlines flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport are American Airlines, Air Canada and United Airlines. Something to consider prior to booking your flight.

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

Wednesday is generally a great day to depart. Flying on this day could help you save up to 20%.

Most accurate provider : When it comes to deals on Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau 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 Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

Yes. Cheapflights offers flight deals from O'Hare Intl to Pierre Elliott Trudeau 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.

$114+ Flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

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

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

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from O'Hare Intl to Pierre Elliott Trudeau Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl are usually found in September or January, booked 45 days in advance, depart on a Thursday or Friday and return on a Thursday

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$249 (Air Canada)
One-way from	$122 (American Airlines)
Popular in	December
Cheapest in	September
Average price	$381
Good round-trip deal	$482 or less
Good one-way deal	$171 or less

Provider with most accurate pricing for Chicago O'Hare Intl-Montreal Pierre Elliott Trudeau Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Montreal Pierre Elliott Trudeau Intl flights.

Search Deals

From Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl

Search Deals

One-way flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($23 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl.

Search Deals

Price to beat on a one-way flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl.

Search Deals

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

Cheapest flights from O'Hare Intl to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from O'Hare Intl to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

Mon 7/71:56 pmORD - YUL

1 stop6h 50mAir Canada

Fri 7/119:45 amYUL - ORD

Nonstop2h 39mAir Canada

Deal found 4/25

$249

Fri 5/169:05 pmORD - YUL

1 stop13h 35mUnited Airlines

Sun 5/188:20 amYUL - ORD

Nonstop2h 32mUnited Airlines

Deal found 4/25

$253

Fri 5/169:45 pmORD - YUL

1 stop10h 38mMultiple Airlines

Sun 5/1811:15 amYUL - ORD

1 stop5h 36mMultiple Airlines

Deal found 4/24

$265

Thu 5/228:24 amORD - YUL

Nonstop2h 20mBritish Airways

Sun 5/2512:30 pmYUL - ORD

Nonstop2h 35mBritish Airways

Deal found 4/24

$269

Thu 9/257:00 amORD - YUL

1 stop8h 00mDelta

Sun 9/286:00 amYUL - ORD

1 stop4h 25mDelta

Deal found 4/24

$275

Wed 5/216:58 amORD - YUL

1 stop5h 46mAmerican Airlines

Sat 5/2412:30 pmYUL - ORD

Nonstop2h 35mAmerican Airlines

Deal found 4/25

$284

Best flights from O'Hare Intl to Pierre Elliott Trudeau Intl
Discover carefully curated flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 25, 2025.

Mon 7/71:56 pmORD - YUL

1 stop6h 50mAir Canada

Fri 7/119:45 amYUL - ORD

Nonstop2h 39mAir Canada

Deal found 4/25

$249

Fri 5/169:05 pmORD - YUL

1 stop13h 35mUnited Airlines

Mon 5/266:15 amYUL - ORD

Nonstop2h 44mUnited Airlines

Deal found 4/25

$253

Fri 5/306:00 amORD - YUL

1 stop11h 25mMultiple Airlines

Sat 6/148:15 amYUL - ORD

1 stop4h 41mMultiple Airlines

Deal found 4/25

$258

Thu 5/228:24 amORD - YUL

Nonstop2h 20mBritish Airways

Sun 5/2512:30 pmYUL - ORD

Nonstop2h 35mBritish Airways

Deal found 4/24

$269

Wed 5/216:58 amORD - YUL

1 stop5h 46mAmerican Airlines

Sat 5/2412:30 pmYUL - ORD

Nonstop2h 35mAmerican Airlines

Deal found 4/25

$284

Tue 5/135:15 pmORD - YUL

1 stop5h 01mDelta

Sat 5/177:00 amYUL - ORD

1 stop6h 20mDelta

Deal found 4/24

$295

Sat 5/175:15 pmORD - YUL

1 stop5h 01mWestJet

Tue 5/276:45 amYUL - ORD

2 stops13h 03mWestJet

Deal found 4/25

$441

Last-minute flights from O'Hare Intl to Pierre Elliott Trudeau Intl
Discover last-minute flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl. Data last updated April 25, 2025 and is based on user searches.

Thu 5/15:10 pmORD - YUL

1 stop15h 40mAmerican Airlines

Fri 5/212:30 pmYUL - ORD

Nonstop2h 35mAmerican Airlines

Deal found 4/24

$342

Fri 5/27:00 amORD - YUL

Nonstop2h 28mUnited Airlines

Mon 5/126:15 amYUL - ORD

Nonstop2h 47mUnited Airlines

Deal found 4/25

$335

Fri 5/27:00 amORD - YUL

Nonstop2h 28mMultiple Airlines

Mon 5/121:00 pmYUL - ORD

1 stop6h 54mMultiple Airlines

Deal found 4/25

$340

Fri 5/26:45 amORD - YUL

1 stop8h 15mDelta

Mon 5/126:45 pmYUL - ORD

1 stop6h 13mDelta

Deal found 4/25

$360

Fri 5/28:50 amORD - YUL

2 stops14h 47mWestJet

Mon 5/54:50 pmYUL - ORD

1 stop4h 55mWestJet

Deal found 4/24

$635

Mon 5/512:00 pmORD - YUL

1 stop4h 21mAir Canada

Fri 5/99:15 amYUL - ORD

1 stop4h 40mAir Canada

Deal found 4/25

$358

Tue 5/135:15 pmORD - YUL

1 stop5h 01mDelta

Sat 5/177:00 amYUL - ORD

1 stop6h 20mDelta

Deal found 4/24

$295

Fri 5/167:10 amORD - YUL

1 stop15h 16mUnited Airlines

Mon 5/196:15 amYUL - ORD

Nonstop2h 47mUnited Airlines

Deal found 4/25

$253

Fri 5/169:45 pmORD - YUL

1 stop10h 38mMultiple Airlines

Sun 5/1811:15 amYUL - ORD

1 stop5h 36mMultiple Airlines

Deal found 4/24

$265

Sat 5/175:15 pmORD - YUL

1 stop5h 01mWestJet

Tue 5/276:45 amYUL - ORD

2 stops13h 03mWestJet

Deal found 4/25

$441

Wed 5/216:58 amORD - YUL

1 stop5h 46mAmerican Airlines

Sat 5/2412:30 pmYUL - ORD

Nonstop2h 35mAmerican Airlines

Deal found 4/25

$284

Thu 5/228:24 amORD - YUL

Nonstop2h 20mBritish Airways

Sun 5/2512:30 pmYUL - ORD

Nonstop2h 35mBritish Airways

Deal found 4/24

$269

One-way flights from O'Hare Intl to Pierre Elliott Trudeau Intl
Search for one-way flight options from O'Hare Intl to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated April 25, 2025.

Sat 5/108:24 amORD - YUL

Nonstop2h 20mAmerican Airlines

Deal found 4/23

$122

Sun 5/119:35 amORD - YUL

1 stop4h 46mAir Canada

Deal found 4/23

$123

Thu 6/192:00 pmORD - YUL

1 stop8h 13mDelta

Deal found 4/24

$125

Thu 6/2612:35 pmORD - YUL

2 stops11h 02mMultiple Airlines

Deal found 4/24

$127

Thu 5/16:35 amORD - YUL

2 stops41h 02mWestJet

Deal found 4/25

$304

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Mon 7/7

1:56 pm-9:46 pm

1 stop6h 50m

Montreal Pierre Elliott Trudeau Intl

Fri 7/11

9:45 am-11:24 am

Nonstop2h 39m

$249

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 5/16

9:05 pm-11:40 am

1 stop13h 35m

Montreal Pierre Elliott Trudeau Intl

Mon 5/26

6:15 am-7:59 am

Nonstop2h 44m

$253

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 5/16

9:45 pm-9:23 am

1 stop10h 38m

Montreal Pierre Elliott Trudeau Intl

Sun 5/18

11:15 am-3:51 pm

1 stop5h 36m

$265

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 5/22

8:24 am-11:44 am

Nonstop2h 20m

Montreal Pierre Elliott Trudeau Intl

Sun 5/25

12:30 pm-2:05 pm

Nonstop2h 35m

$269

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 5/21

6:58 am-1:44 pm

1 stop5h 46m

Montreal Pierre Elliott Trudeau Intl

Sat 5/24

12:30 pm-2:05 pm

Nonstop2h 35m

$284

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 5/13

5:15 pm-11:16 pm

1 stop5h 01m

Montreal Pierre Elliott Trudeau Intl

Sat 5/17

7:00 am-12:20 pm

1 stop6h 20m

$295

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 5/27

12:00 pm-7:26 pm

2 stops6h 26m

$114

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 5/10

8:24 am-11:44 am

Nonstop2h 20m

$122

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 6/19

2:00 pm-11:13 pm

1 stop8h 13m

$125

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 6/26

12:35 pm-12:37 am

2 stops11h 02m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 11 results

Compare providers for flights from O'Hare Intl to Pierre Elliott Trudeau Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl in April.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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 Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau 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 Chicago O'Hare Intl Airport-Montreal Pierre Elliott Trudeau 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 Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport trip

Airports

ORD

Prepare for long walks between terminals at ORD. Know your airline's terminal to avoid unnecessary transfers.

YUL

Use the Line 747 bus for a cheap ride into downtown Montreal from YUL, running every 10 to 15 minutes.

Our travel experts

Ramsey Qubein

Expert on ORD

John Walton

Expert on YUL

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

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

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

Booking 45 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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 ORD to YUL?

It’s optimal to fly from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in the evening. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight in the morning.

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

The most flights from ORD to YUL are scheduled on a Wednesday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).

Rainfall in Pierre Elliott Trudeau Intl by month

In terms of precipitation, rainfall in Montreal Pierre Elliott Trudeau Intl Airport ranges from 2.5 - 4.4 inches per month. August is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Montreal Pierre Elliott Trudeau Intl Airport when rainfall is around 2.5 in.

Temperature in Pierre Elliott Trudeau Intl by month

If weather is an important factor for your trip to Montreal Pierre Elliott Trudeau 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 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing Pierre Elliott Trudeau Intl

To help decide which airline to fly from Chicago to Montreal, see what other customers have to say about Delta, United Airlines and American Airlines. 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

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,920 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,685 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet

7.2

Good

2,818 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

9,210 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport round-trip?
Flying on Air Canada is currently your cheapest option to Montreal Pierre Elliott Trudeau Intl Airport, with prices starting at $249. Additional round-trip tickets that might be worth considering are offered by United Airlines and British Airways, with the lowest prices starting at $253 and $269, respectively. Air Canada is priced at 40% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport one-way?
For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $122. Users have also found prices from $123 and $125 on Air Canada and Delta, respectively.
What are the most reliable airlines from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?
The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport are Avianca (91%), Copa Airlines (88%) and Air New Zealand (88%).
What are the cheapest flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?
On average you can expect to pay $948 for a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. The cheapest flight overall is $95 while the most popular route, (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at $233.
Can I find deals for flights from O'Hare Intl to Pierre Elliott Trudeau Intl that include hotel bookings?
Yes. In addition to deals on O'Hare Intl to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from O'Hare Intl to Pierre Elliott Trudeau Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Pierre Elliott Trudeau Intl.
Can I find deals for business class flights from O'Hare Intl to Pierre Elliott Trudeau Intl?
Yes. Cheapflights offers flight deals from O'Hare Intl to Pierre Elliott Trudeau 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 Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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

Laval

Dorval

Brossard

Longueuil

Sherbrooke

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from O'Hare Intl to Pierre Elliott Trudeau Intl

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$169	Average$432	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$186	Average$415	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$215	Average$391	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$114+ Cheap flights from O'Hare Intl (ORD) to Pierre Elliott Trudeau Intl (YUL)

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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from O'Hare Intl to Pierre Elliott Trudeau Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl are usually found in September or January, booked 45 days in advance, depart on a Thursday or Friday and return on a Thursday

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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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

Cheapest flights from O'Hare Intl to Pierre Elliott Trudeau IntlExplore the most affordable flight options available from O'Hare Intl to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

Explore the most affordable flight options available from O'Hare Intl to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Compare providers for flights from O'Hare Intl to Pierre Elliott Trudeau 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 O'Hare Intl to Pierre Elliott Trudeau Intl in April.

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

Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport trip

Airports

ORD

YUL

Our travel experts

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

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from O'Hare Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Pierre Elliott Trudeau Intl. Price data was last updated on April 25, 2025.

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

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

Find hourly flight availability from O'Hare Intl to Pierre Elliott Trudeau 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 25, 2025.

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

Rainfall in Pierre Elliott Trudeau Intl by month

Plan your trip to Pierre Elliott Trudeau Intl by taking into account the average rainfall totals by month.

Temperature in Pierre Elliott Trudeau Intl by month

Plan your trip to Pierre Elliott Trudeau Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Related info for your journey

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

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

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

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from O'Hare Intl to Pierre Elliott Trudeau Intl

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from O'Hare Intl to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from O'Hare Intl to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.