What’s the cheapest layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Toronto (YYZ) is the most affordable 1-stop option, with an average round-trip price of $339.

What’s the top layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Toronto (YYZ) – chosen by Cheapflights users on 88% of 1-stop itineraries from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco on Cheapflights.

What’s the fastest layover option from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 8h 55m.

Which airport typically offers the quickest layover for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 36m.

Weekly flight availability from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco

The most flights from YUL to SFO are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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

Consider Air New Zealand (65%), Air Canada (62%) or United Airlines (62%) when booking your flight. These represent the most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco.

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

When booking a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco, you may want to consider flying on Air Canada, Porter Airlines or United Airlines as they are the most popular for this route.

Most accurate provider : When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-San Francisco 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-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-San Francisco 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-San Francisco 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-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to San Francisco from Montreal Pierre Elliott Trudeau Intl?

If you book a flight to San Francisco from Montreal Pierre Elliott Trudeau Intl, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There are 9 flights from Montreal Pierre Elliott Trudeau Intl to San Francisco per day from 3 different airlines.

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

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 San Francisco.

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

Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$203+ Flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco

Q: What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

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

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Find cheap flights from Pierre Elliott Trudeau Intl to San Francisco 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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to San Francisco are usually found in April or September, booked 69 days in advance, depart on a Friday or Tuesday and return on a Wednesday

Cheap flight deals from Pierre Elliott Trudeau Intl to San Francisco

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$324 (Kiwi.com)
One-way from	$203 (Trip.com)
Popular in	December
Cheapest in	April
Average price	$375
Good round-trip deal	$400 or less
Good one-way deal	$230 or less

Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-San Francisco flight deals.

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Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-San Francisco flights.

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From Montreal Pierre Elliott Trudeau Intl to San Francisco

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One-way flight from Montreal Pierre Elliott Trudeau Intl to San Francisco

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Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to San Francisco.

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Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to San Francisco.

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Find flight deals from Pierre Elliott Trudeau Intl to San Francisco

Cheapest flights from Pierre Elliott Trudeau Intl to San Francisco
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2025.

Fri 11/146:45 amYUL - SFO

2 stops17h 50mMultiple Airlines

Sun 11/1610:15 amSFO - YUL

1 stop27h 12mMultiple Airlines

Deal found 9/26

$324

Tue 10/2111:00 amYUL - SFO

3 stops25h 30mMultiple Airlines

Thu 11/610:15 amSFO - YUL

3 stops28h 25mMultiple Airlines

Deal found 9/26

$325

Thu 10/306:45 amYUL - SFO

1 stop8h 55mMultiple Airlines

Sun 11/910:15 amSFO - YUL

1 stop27h 12mMultiple Airlines

Deal found 9/26

$327

Thu 11/134:15 pmYUL - SFO

1 stop22h 57mMultiple Airlines

Sat 11/1510:15 amSFO - YUL

1 stop27h 12mMultiple Airlines

Deal found 9/26

$333

Tue 11/116:45 amYUL - SFO

2 stops12h 58mMultiple Airlines

Sun 11/1610:15 amSFO - YUL

1 stop27h 12mMultiple Airlines

Deal found 9/26

$338

Fri 10/177:00 amYUL - SFO

1 stop29h 30mMultiple Airlines

Sat 11/16:28 pmSFO - YUL

2 stops43h 59mMultiple Airlines

Deal found 9/26

$341

Mon 11/106:45 amYUL - SFO

2 stops29h 45mMultiple Airlines

Sun 11/1610:15 amSFO - YUL

1 stop27h 12mMultiple Airlines

Deal found 9/26

$342

Wed 11/126:45 amYUL - SFO

1 stop8h 55mMultiple Airlines

Sat 11/1510:15 amSFO - YUL

1 stop27h 12mMultiple Airlines

Deal found 9/26

$343

Thu 10/2312:36 pmYUL - SFO

1 stop12h 54mDelta

Sun 10/266:10 amSFO - YUL

1 stop8h 24mDelta

Deal found 9/26

$344

Sat 11/86:45 amYUL - SFO

1 stop8h 55mMultiple Airlines

Sat 11/1510:15 amSFO - YUL

1 stop27h 12mMultiple Airlines

Deal found 9/26

$349

Best flights from Pierre Elliott Trudeau Intl to San Francisco
Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 27, 2025.

Tue 10/216:30 pmYUL - SFO

Nonstop6h 10mUnited Airlines

Sat 10/255:05 amSFO - YUL

2 stops14h 01mUnited Airlines

Deal found 9/24

$377

Fri 10/176:30 pmYUL - SFO

Nonstop6h 10mMultiple Airlines

Sat 11/18:25 amSFO - YUL

Nonstop5h 24mMultiple Airlines

Deal found 9/26

$391

Tue 10/216:15 amYUL - SFO

1 stop10h 20mUnited Airlines

Fri 10/246:35 pmSFO - YUL

1 stop13h 05mUnited Airlines

Deal found 9/24

$382

Sat 10/186:30 pmYUL - SFO

Nonstop6h 10mUnited Airlines

Sat 11/111:59 pmSFO - YUL

2 stops11h 29mUnited Airlines

Deal found 9/26

$391

Thu 10/236:30 pmYUL - SFO

Nonstop6h 10mUnited Airlines

Tue 11/410:45 pmSFO - YUL

1 stop13h 31mUnited Airlines

Deal found 9/25

$392

Fri 11/149:15 amYUL - SFO

1 stop13h 05mUnited Airlines

Fri 11/1411:15 pmSFO - YUL

1 stop11h 45mUnited Airlines

Deal found 9/26

$405

Thu 11/207:00 amYUL - SFO

2 stops11h 16mUnited Airlines

Wed 11/268:55 pmSFO - YUL

2 stops14h 05mUnited Airlines

Deal found 9/26

$411

Wed 11/126:00 amYUL - SFO

1 stop10h 25mUnited Airlines

Sat 11/156:30 amSFO - YUL

2 stops12h 12mUnited Airlines

Deal found 9/26

$411

Wed 11/123:00 pmYUL - SFO

1 stop11h 58mUnited Airlines

Mon 11/1712:43 amSFO - YUL

2 stops11h 33mUnited Airlines

Deal found 9/26

$411

Tue 11/182:13 pmYUL - SFO

2 stops12h 59mUnited Airlines

Thu 11/275:00 amSFO - YUL

2 stops13h 17mUnited Airlines

Deal found 9/26

$411

Sat 11/156:00 amYUL - SFO

2 stops12h 16mUnited Airlines

Mon 11/1712:43 amSFO - YUL

2 stops11h 33mUnited Airlines

Deal found 9/26

$411

Fri 11/72:13 pmYUL - SFO

2 stops20h 22mUnited Airlines

Mon 11/106:45 pmSFO - YUL

2 stops16h 15mUnited Airlines

Deal found 9/26

$411

Last-minute flights from Pierre Elliott Trudeau Intl to San Francisco
Discover last-minute flight deals from Pierre Elliott Trudeau Intl to San Francisco. Data last updated September 27, 2025 and is based on user searches.

Fri 10/177:00 amYUL - SFO

1 stop29h 30mMultiple Airlines

Sat 11/16:28 pmSFO - YUL

2 stops43h 59mMultiple Airlines

Deal found 9/26

$341

Fri 10/177:00 amYUL - SFO

1 stop29h 30mMultiple Airlines

Thu 10/2310:15 amSFO - YUL

2 stops24h 55mMultiple Airlines

Deal found 9/26

$356

Fri 10/176:30 pmYUL - SFO

Nonstop6h 10mUnited Airlines

Thu 10/236:35 pmSFO - YUL

1 stop13h 05mUnited Airlines

Deal found 9/26

$359

Tue 10/2111:00 amYUL - SFO

3 stops25h 30mMultiple Airlines

Thu 11/610:15 amSFO - YUL

3 stops28h 25mMultiple Airlines

Deal found 9/26

$325

Tue 10/216:30 pmYUL - SFO

Nonstop6h 10mUnited Airlines

Wed 11/58:25 amSFO - YUL

1 stop8h 23mUnited Airlines

Deal found 9/26

$365

Wed 10/226:30 pmYUL - SFO

Nonstop6h 10mMultiple Airlines

Fri 10/2411:40 amSFO - YUL

Nonstop5h 25mMultiple Airlines

Deal found 9/26

$360

Thu 10/2312:36 pmYUL - SFO

1 stop12h 54mDelta

Sun 10/266:10 amSFO - YUL

1 stop8h 24mDelta

Deal found 9/26

$344

Thu 10/306:45 amYUL - SFO

1 stop8h 55mMultiple Airlines

Sun 11/910:15 amSFO - YUL

1 stop27h 12mMultiple Airlines

Deal found 9/26

$327

One-way flights from Pierre Elliott Trudeau Intl to San Francisco
Search for one-way flight options from Pierre Elliott Trudeau Intl to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 27, 2025.

Fri 11/146:45 amYUL - SFO

2 stops17h 50mMultiple Airlines

Deal found 9/25

$203

Thu 10/236:45 amYUL - SFO

3 stops18h 08mMultiple Airlines

Deal found 9/25

$205

Mon 10/206:45 amYUL - SFO

1 stop8h 38mPorter Airlines

Deal found 9/25

$212

Sun 10/266:45 amYUL - SFO

1 stop8h 55mPorter Airlines

Deal found 9/25

$214

Thu 10/238:05 amYUL - SFO

Nonstop6h 06mAir Canada

Deal found 9/25

$215

Sun 11/96:45 amYUL - SFO

1 stop8h 55mPorter Airlines

Deal found 9/25

$217

Tue 11/46:45 amYUL - SFO

1 stop8h 55mPorter Airlines

Deal found 9/26

$218

Fri 10/246:45 amYUL - SFO

1 stop8h 38mPorter Airlines

Deal found 9/25

$219

Mon 10/206:45 amYUL - SFO

2 stops31h 10mMultiple Airlines

Deal found 9/25

$221

Tue 11/45:50 pmYUL - SFO

Nonstop6h 32mAir Canada

Deal found 9/26

$223

Thu 10/236:15 amYUL - SFO

2 stops14h 21mUnited Airlines

Deal found 9/25

$226

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 10/21

6:30 pm-9:40 pm

Nonstop6h 10m

San Francisco

Sat 10/25

5:05 am-10:06 pm

2 stops14h 01m

$377

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 10/21

6:15 am-1:35 pm

1 stop10h 20m

San Francisco

Fri 10/24

6:35 pm-10:40 am

1 stop13h 05m

$382

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 10/17

6:30 pm-9:40 pm

Nonstop6h 10m

San Francisco

Sat 11/1

8:25 am-4:49 pm

Nonstop5h 24m

$391

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 10/18

6:30 pm-9:40 pm

Nonstop6h 10m

San Francisco

Sat 11/1

11:59 pm-1:28 pm

2 stops11h 29m

$391

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 10/23

6:30 pm-9:40 pm

Nonstop6h 10m

San Francisco

Tue 11/4

10:45 pm-3:16 pm

1 stop13h 31m

$392

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 11/14

9:15 am-7:20 pm

1 stop13h 05m

San Francisco

Fri 11/14

11:15 pm-2:00 pm

1 stop11h 45m

$405

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 11/20

7:00 am-3:16 pm

2 stops11h 16m

San Francisco

Wed 11/26

8:55 pm-2:00 pm

2 stops14h 05m

$411

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 11/12

6:00 am-1:25 pm

1 stop10h 25m

San Francisco

Sat 11/15

6:30 am-9:42 pm

2 stops12h 12m

$411

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 11/12

3:00 pm-11:58 pm

1 stop11h 58m

San Francisco

Mon 11/17

12:43 am-3:16 pm

2 stops11h 33m

$411

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 11/18

2:13 pm-12:12 am

2 stops12h 59m

San Francisco

Thu 11/27

5:00 am-9:17 pm

2 stops13h 17m

$411

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/25

Showing 1-10 of 22 results

Compare providers for flights from Pierre Elliott Trudeau Intl to San Francisco

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 San Francisco in September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Gotogate	Price Accuracy2 stars	Trust Score*2 stars
Cheapflightsfares	Price Accuracy2 stars	Trust Score*1 star
Priceline	Price Accuracy1 star	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 Montreal Pierre Elliott Trudeau Intl Airport-San Francisco 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-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-San Francisco 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-San Francisco 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-San Francisco 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 San Francisco flights

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

Airports

YUL

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

SFO

Take BART from SFO to downtown San Francisco for the least expensive travel option, taking about 40 minutes.

Our travel experts

John Walton

Expert on YUL

Harriet Baskas

Expert on SFO

Best time to book a flight from Pierre Elliott Trudeau Intl to San Francisco

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

Prices

Airlines

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

The best time to book flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco is 69 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 San Francisco?

Currently, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco (average of $276). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in June is currently the most expensive (average of $357). 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 SFO?

It’s optimal to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco at noon. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing San Francisco

Get a feel of what it's like to fly with Porter Airlines, United Airlines, and Air Canada from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

7.9

Good

369 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Porter Airlines

7.9

Good

369 reviews

Porter Airlines

7.9

Good

369 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Sep 2025

YYZ - OPO

United Airlines

7.4

Good

8,926 reviews

Porter Airlines

7.9

Good

369 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Sep 2025

YYZ - OPO

Air Canada

7.1

Good

10,000 reviews

Porter Airlines

7.9

Good

369 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Sep 2025

YYZ - OPO

Related info for your journey

What airport do you fly into for flights to San Francisco from Montreal Pierre Elliott Trudeau Intl?
If you book a flight to San Francisco from Montreal Pierre Elliott Trudeau Intl, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There are 9 flights from Montreal Pierre Elliott Trudeau Intl to San Francisco per day from 3 different airlines.
How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?
Departing from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco will take you 6h 10m. The distance from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco is about 2531 mi. Generally, flights for this route are nonstop.
What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco round-trip?
Porter Airlines, at $245, was found to be the cheapest airline from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco.Alternate airlines to your destination round-trip include Air Canada and United Airlines. You may be able to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco for 40% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco one-way?
The cheapest airlines for a one-way flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco are Porter Airlines ($214), Air Canada ($223), and United Airlines ($226).
What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?
Consider Air New Zealand (65%), Air Canada (62%) or United Airlines (62%) when booking your flight. These represent the most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco.
What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?
The cheapest flight price from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco is $185. On average you can expect to pay $543. The most popular route, (Montreal Pierre Elliott Trudeau Intl - San Francisco), can usually be booked for $339.
Can I find deals for flights from Pierre Elliott Trudeau Intl to San Francisco that include hotel bookings?
Yes. In addition to deals on Pierre Elliott Trudeau Intl to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Pierre Elliott Trudeau Intl to San Francisco?
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 San Francisco.
Can I find deals for business class flights from Pierre Elliott Trudeau Intl to San Francisco?
Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to San Francisco 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 San Francisco?
Currently, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco (average of $276). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in June is currently the most expensive (average of $357). 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

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Top 3 airlines flying from Pierre Elliott Trudeau Intl to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	Cheapest$245	Average$319	FlexibilityNo cancel fee	On-time52%
Air Canada	Cheapest$289	Average$404	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$341	Average$556	FlexibilityNo cancel fee	On-time69%

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$203+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to San Francisco (SFO)

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Pierre Elliott Trudeau Intl to San Francisco with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to San Francisco are usually found in April or September, booked 69 days in advance, depart on a Friday or Tuesday and return on a Wednesday

Cheap flight deals from Pierre Elliott Trudeau Intl to San Francisco

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 Pierre Elliott Trudeau Intl to San Francisco

Cheapest flights from Pierre Elliott Trudeau Intl to San FranciscoExplore the most affordable flight options available from Pierre Elliott Trudeau Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2025.

Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Pierre Elliott Trudeau Intl to San Francisco

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 San Francisco in September.

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

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

Airports

YUL

SFO

Our travel experts

Best time to book a flight from Pierre Elliott Trudeau Intl to San Francisco

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

Cheapflights Insights

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

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

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

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

Weekly flight availability from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco

What’s the top layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

What’s the fastest layover option from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

What’s the fastest layover option from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Which airport typically offers the quickest layover for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

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What airport do you fly into for flights to San Francisco from Montreal Pierre Elliott Trudeau Intl?

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

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

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Top 3 airlines flying from Pierre Elliott Trudeau Intl to San Francisco

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Cheapest flights from Pierre Elliott Trudeau Intl to San Francisco
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2025.