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

To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $199. Delta flights start at $199 while deals on United Airlines start at $258 one-way.

Weekly flight availability from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport

The most flights from ATL to YUL are scheduled on a Wednesday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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.

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).

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

Consider KLM (90%), Air Canada (88%) or Delta (84%) when booking your flight. These represent the most reliable airlines when flying from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport.

What are the most popular airlines that fly from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport?

Delta, Air Canada and WestJet are the most popular airlines when flying from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport.

Most accurate provider : When it comes to deals on Atlanta-Montreal Pierre Elliott Trudeau Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Atlanta-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Atlanta-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 Atlanta-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 Atlanta-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.

What airport do you fly from for flights from Atlanta to Montreal Pierre Elliott Trudeau Intl?

If you book a flight to Montreal Pierre Elliott Trudeau Intl from Atlanta, you will be flying from Hartsfield-Jackson, which is the city’s only airport. Atlanta Hartsfield-Jackson (ATL) is located 8.2 mi from the center of Atlanta. There are 12 flights from Hartsfield-Jackson to Montreal Pierre Elliott Trudeau Intl per day from 4 different airlines.

How can I find direct flights from Atlanta 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 Atlanta to Pierre Elliott Trudeau Intl.

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

Yes. Cheapflights offers flight deals from Atlanta 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.

$92+ Flights from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport

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Cheapflights Tip: The best prices from Atlanta Hartsfield-Jackson to Montreal Pierre Elliott Trudeau Intl are usually found in February or January, booked 63 days in advance, depart on a Saturday or Monday and return on a Wednesday

Cheap flight deals from Atlanta to Pierre Elliott Trudeau Intl

Cheapest flights from Atlanta to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Atlanta to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Wed 12/245:15 amATL - YUL

1 stop9h 55mMultiple Airlines

Tue 1/206:45 amYUL - ATL

2 stops16h 23mMultiple Airlines

Deal found 12/16

$330

Thu 12/255:55 amATL - YUL

1 stop18h 35mMultiple Airlines

Tue 1/66:45 amYUL - ATL

1 stop18h 13mMultiple Airlines

Deal found 12/17

$337

Wed 12/315:55 amATL - YUL

1 stop18h 35mMultiple Airlines

Thu 1/298:00 amYUL - ATL

1 stop11h 16mMultiple Airlines

Deal found 12/17

$390

Tue 12/307:46 pmATL - YUL

1 stop28h 44mMultiple Airlines

Wed 1/76:45 amYUL - ATL

2 stops24h 22mMultiple Airlines

Deal found 12/16

$407

Mon 12/225:40 amATL - YUL

1 stop18h 50mMultiple Airlines

Tue 12/306:45 amYUL - ATL

2 stops26h 45mMultiple Airlines

Deal found 12/15

$439

Mon 12/225:40 amATL - YUL

1 stop18h 50mMultiple Airlines

Wed 12/316:45 amYUL - ATL

2 stops14h 34mMultiple Airlines

Deal found 12/15

$448

Tue 12/2310:10 amATL - YUL

1 stop29h 00mMultiple Airlines

Tue 12/306:45 amYUL - ATL

2 stops26h 45mMultiple Airlines

Deal found 12/15

$451

Mon 12/225:40 amATL - YUL

1 stop18h 50mMultiple Airlines

Sun 1/47:20 pmYUL - ATL

2 stops53h 38mMultiple Airlines

Deal found 12/15

$454

Best flights from Atlanta to Pierre Elliott Trudeau Intl
Discover carefully curated flight deals from Atlanta 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 December 18, 2025.

Wed 1/148:58 amATL - YUL

3 stops15h 37mMultiple Airlines

Wed 1/216:45 amYUL - ATL

1 stop7h 35mMultiple Airlines

Deal found 12/17

$298

Tue 1/209:30 amATL - YUL

1 stop9h 07mDelta

Thu 1/299:34 amYUL - ATL

1 stop9h 08mDelta

Deal found 12/16

$430

Sun 1/1812:55 pmATL - YUL

Nonstop2h 39mAir Canada

Thu 1/226:55 pmYUL - ATL

Nonstop2h 58mAir Canada

Deal found 12/17

$536

Wed 1/710:46 pmATL - YUL

2 stops25h 57mMultiple Airlines

Tue 1/137:30 pmYUL - ATL

1 stop11h 22mMultiple Airlines

Deal found 12/17

$318

Tue 1/610:45 pmATL - YUL

2 stops16h 30mMultiple Airlines

Tue 1/137:30 pmYUL - ATL

1 stop11h 22mMultiple Airlines

Deal found 12/17

$329

Fri 1/99:30 amATL - YUL

1 stop9h 07mDelta

Mon 1/127:00 amYUL - ATL

Nonstop3h 28mDelta

Deal found 12/16

$527

Thu 12/255:55 amATL - YUL

1 stop18h 35mMultiple Airlines

Sun 1/47:20 pmYUL - ATL

2 stops36h 57mMultiple Airlines

Deal found 12/16

$488

Last-minute flights from Atlanta to Pierre Elliott Trudeau Intl
Discover last-minute flight deals from Atlanta to Pierre Elliott Trudeau Intl. Data last updated December 18, 2025 and is based on user searches.

Thu 1/89:37 amATL - YUL

2 stops30h 53mMultiple Airlines

Sun 1/118:00 amYUL - ATL

1 stop26h 24mMultiple Airlines

Deal found 12/16

$293

Mon 1/128:21 pmATL - YUL

2 stops28h 22mMultiple Airlines

Mon 1/198:00 amYUL - ATL

1 stop26h 24mMultiple Airlines

Deal found 12/15

$274

Tue 1/134:15 pmATL - YUL

1 stop14h 50mMultiple Airlines

Tue 1/206:45 amYUL - ATL

2 stops12h 31mMultiple Airlines

Deal found 12/16

$286

Wed 1/148:58 amATL - YUL

3 stops15h 37mMultiple Airlines

Wed 1/216:45 amYUL - ATL

1 stop7h 35mMultiple Airlines

Deal found 12/17

$298

Sun 1/188:04 amATL - YUL

2 stops16h 31mMultiple Airlines

Thu 1/228:00 amYUL - ATL

1 stop11h 16mMultiple Airlines

Deal found 12/17

$268

Thu 1/228:21 pmATL - YUL

2 stops20h 39mMultiple Airlines

Mon 1/268:00 amYUL - ATL

1 stop11h 16mMultiple Airlines

Deal found 12/16

$240

Wed 1/2810:20 pmATL - YUL

1 stop18h 02mMultiple Airlines

Sun 2/18:00 amYUL - ATL

1 stop12h 05mMultiple Airlines

Deal found 12/17

$284

Sat 1/3110:50 pmATL - YUL

2 stops40h 04mMultiple Airlines

Sat 2/78:00 amYUL - ATL

1 stop11h 16mMultiple Airlines

Deal found 12/17

$283

One-way flights from Atlanta to Pierre Elliott Trudeau Intl
Search for one-way flight options from Atlanta to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Wed 2/187:45 amATL - YUL

2 stops12h 29mMultiple Airlines

Deal found 12/16

$92

Thu 1/158:21 pmATL - YUL

1 stop20h 01mMultiple Airlines

Deal found 12/16

$96

Wed 1/215:25 amATL - YUL

3 stops19h 10mMultiple Airlines

Deal found 12/16

$104

Tue 1/138:21 pmATL - YUL

3 stops28h 14mMultiple Airlines

Deal found 12/17

$105

Thu 2/195:15 amATL - YUL

2 stops14h 59mMultiple Airlines

Deal found 12/16

$109

Fri 1/165:25 amATL - YUL

1 stop10h 57mMultiple Airlines

Deal found 12/16

$112

Wed 1/148:58 amATL - YUL

3 stops15h 37mMultiple Airlines

Deal found 12/16

$113

Wed 2/117:45 amATL - YUL

2 stops9h 15mMultiple Airlines

Deal found 12/16

$114

Mon 1/1910:45 pmATL - YUL

2 stops25h 58mMultiple Airlines

Deal found 12/17

$124

Fri 1/235:25 amATL - YUL

1 stop9h 45mMultiple Airlines

Deal found 12/17

$125

Find flight deals from Atlanta to Pierre Elliott Trudeau Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$240 (Kiwi.com)
One-way from	$92 (Kiwi.com)
Popular in	September
Cheapest in	February
Average price	$514
Good round-trip deal	$750 or less
Good one-way deal	$357 or less

Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Montreal Pierre Elliott Trudeau Intl flight deals.

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Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-Montreal Pierre Elliott Trudeau Intl flights.

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From Atlanta Hartsfield-Jackson to Montreal Pierre Elliott Trudeau Intl

Search Deals

One-way flight from Atlanta Hartsfield-Jackson to Montreal Pierre Elliott Trudeau Intl

Search Deals

Highest demand for flights based on searches. 19% potential increase in price ($105 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from Atlanta Hartsfield-Jackson to Montreal Pierre Elliott Trudeau Intl.

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Price to beat on a one-way flight from Atlanta Hartsfield-Jackson to Montreal Pierre Elliott Trudeau Intl.

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Wed 1/14

8:58 am-12:35 am

3 stops15h 37m

Montreal Pierre Elliott Trudeau Intl

Wed 1/21

6:45 am-2:20 pm

1 stop7h 35m

$298

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Wed 1/7

10:46 pm-12:43 am

2 stops25h 57m

Montreal Pierre Elliott Trudeau Intl

Tue 1/13

7:30 pm-6:52 am

1 stop11h 22m

$318

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Tue 1/6

10:45 pm-3:15 pm

2 stops16h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 1/13

7:30 pm-6:52 am

1 stop11h 22m

$329

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Tue 1/20

9:30 am-6:37 pm

1 stop9h 07m

Montreal Pierre Elliott Trudeau Intl

Thu 1/29

9:34 am-6:42 pm

1 stop9h 08m

$430

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Thu 12/25

5:55 am-12:30 am

1 stop18h 35m

Montreal Pierre Elliott Trudeau Intl

Sun 1/4

7:20 pm-8:17 am

2 stops36h 57m

$488

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Fri 1/9

9:30 am-6:37 pm

1 stop9h 07m

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

7:00 am-10:28 am

Nonstop3h 28m

$527

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Sun 1/18

12:55 pm-3:34 pm

Nonstop2h 39m

Montreal Pierre Elliott Trudeau Intl

Thu 1/22

6:55 pm-9:53 pm

Nonstop2h 58m

$536

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Thu 1/15

8:21 pm-4:22 pm

1 stop20h 01m

$96

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Tue 1/13

8:45 am-12:43 am

2 stops15h 58m

$113

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Wed 1/14

8:58 am-12:35 am

3 stops15h 37m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 18 results

Compare providers for flights from Atlanta 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 Atlanta to Pierre Elliott Trudeau Intl in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Justfly.com	Price Accuracy3 stars	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star

*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 Atlanta-Montreal Pierre Elliott Trudeau Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Atlanta-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Atlanta-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 Atlanta-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 Atlanta-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.

Best time to book a flight from Atlanta to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Atlanta 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 Atlanta to Montreal Pierre Elliott Trudeau Intl Airport

Prices

Airlines

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

To ensure you get the cheapest price possible for a flight from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport (average of $199). Flying from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport in November is currently the most expensive (average of $273). 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 ATL to YUL?

It’s optimal to fly from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport in the evening. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport?

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

The best insider tips for Atlanta to Montreal Pierre Elliott Trudeau Intl Airport flights

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

Airports

ATL

Consider using MARTA for a quick 15-20 minute ride from downtown Atlanta to ATL's domestic terminal.

YUL

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

Our travel experts

John Walton

Expert on YUL

Chris Dong

Expert on ATL

Reviews of airlines servicing Pierre Elliott Trudeau Intl

See what other customers who have flown with Delta, United Airlines, and WestJet from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

2.0

Mediocre

Santiago,Apr 2024

ATL - JNB

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta

7.9

Good

8,008 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

2.0

Mediocre

Santiago,Apr 2024

ATL - JNB

United Airlines

7.4

Good

9,093 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

2.0

Mediocre

Santiago,Apr 2024

ATL - JNB

WestJet

7.2

Good

3,204 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

2.0

Mediocre

Santiago,Apr 2024

ATL - JNB

Air Canada

7.1

Good

10,534 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

2.0

Mediocre

Santiago,Apr 2024

ATL - JNB

Related info for your journey

What airport do you fly from for flights from Atlanta to Montreal Pierre Elliott Trudeau Intl?
If you book a flight to Montreal Pierre Elliott Trudeau Intl from Atlanta, you will be flying from Hartsfield-Jackson, which is the city’s only airport. Atlanta Hartsfield-Jackson (ATL) is located 8.2 mi from the center of Atlanta. There are 12 flights from Hartsfield-Jackson to Montreal Pierre Elliott Trudeau Intl per day from 4 different airlines.
What are the cheapest airlines flying from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport round-trip?
Our cheapest airline available from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport is Air Canada. Our recent data shows that you can find tickets from as low as $237 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $238 and $243 round-trip. Users have found that Air Canada is 43% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport one-way?
To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $199. Delta flights start at $199 while deals on United Airlines start at $258 one-way.
What are the most reliable airlines from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport?
Consider KLM (90%), Air Canada (88%) or Delta (84%) when booking your flight. These represent the most reliable airlines when flying from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport.
What are the cheapest flights from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport?
While on average a flight from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport is generally $1,090, our data shows the cheapest flight currently is $256. When looking at the most popular route, (Atlanta Hartsfield-Jackson - Montreal Pierre Elliott Trudeau Intl), you can expect to pay $240 for that flight.
Can I find deals for flights from Atlanta to Pierre Elliott Trudeau Intl that include hotel bookings?
Yes. In addition to deals on Atlanta to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Atlanta 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 Atlanta to Pierre Elliott Trudeau Intl.
Can I find deals for business class flights from Atlanta to Pierre Elliott Trudeau Intl?
Yes. Cheapflights offers flight deals from Atlanta 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 Atlanta to Montreal Pierre Elliott Trudeau Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport (average of $199). Flying from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport in November is currently the most expensive (average of $273). 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

Longueuil

Brossard

Dorval

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Top 4 airlines flying from Atlanta to Pierre Elliott Trudeau Intl

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$240	Average$560	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$243	Average$535	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$243	Average$480	FlexibilityNo cancel fee	On-timeN/A
WestJet	Cheapest$464	Average$813	FlexibilityNo cancel fee	On-time60%

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$92+ Cheap flights from Atlanta (ATL) 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Atlanta 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 Atlanta Hartsfield-Jackson to Montreal Pierre Elliott Trudeau Intl are usually found in February or January, booked 63 days in advance, depart on a Saturday or Monday and return on a Wednesday

Cheap flight deals from Atlanta to Pierre Elliott Trudeau Intl

Cheapest flights from Atlanta to Pierre Elliott Trudeau IntlExplore the most affordable flight options available from Atlanta to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Explore the most affordable flight options available from Atlanta to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Find flight deals from Atlanta 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

Cheapflights Fare Finder

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

Compare providers for flights from Atlanta 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 Atlanta to Pierre Elliott Trudeau Intl in December.

Best time to book a flight from Atlanta to Pierre Elliott Trudeau Intl

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

Cheapflights Insights

Everything you need to know about your flight from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport

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

What is the cheapest month to book a flight from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport?

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

What is the cheapest day to fly from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport?

Weekly flight availability from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport

The best insider tips for Atlanta to Montreal Pierre Elliott Trudeau Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.

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

Airports

ATL

YUL

Our travel experts

Reviews of airlines servicing Pierre Elliott Trudeau Intl

See what other customers who have flown with Delta, United Airlines, and WestJet from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Atlanta 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 airport do you fly from for flights from Atlanta to Montreal Pierre Elliott Trudeau Intl?

What are the cheapest airlines flying from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

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

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

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

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

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

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

What is the cheapest month to book a flight from Atlanta to Montreal Pierre Elliott Trudeau Intl Airport?

Traveling to a place near Montreal Pierre Elliott Trudeau Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Atlanta to Pierre Elliott Trudeau Intl

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

Top 4 airlines flying from Atlanta to Pierre Elliott Trudeau Intl

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Cheapest flights from Atlanta to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Atlanta to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.