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$266+ 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SFO
Jan 25 — Feb 11
1 adult, Economy
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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
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 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 Thursday and return on a Wednesday
Cheap 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 December 26, 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 December 26, 2025.
This Delta deal was found by Cheapflights users on 12/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:40 pmYUL - SFO
1 stop12h 19mDelta
Mon 1/512:40 amSFO - YUL
1 stop10h 02mDelta
Deal found 12/25![Delta logo]()
$702
This Air Canada deal was found by Cheapflights users on 12/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:45 pmYUL - SFO
1 stop10h 18mAir Canada
Fri 1/26:30 amSFO - YUL
1 stop7h 28mAir Canada
Deal found 12/26![Air Canada logo]()
$706
This Air Canada deal was found by Cheapflights users on 12/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:10 pmYUL - SFO
2 stops13h 04mAir Canada
Sun 1/411:18 pmSFO - YUL
1 stop9h 05mAir Canada
Deal found 12/26![Air Canada logo]()
$719
This Air Canada deal was found by Cheapflights users on 12/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:10 pmYUL - SFO
1 stop16h 23mAir Canada
Fri 1/28:25 amSFO - YUL
Nonstop5h 24mAir Canada
Deal found 12/26![Air Canada logo]()
$743
This FlightHub deal was found by Cheapflights users on 12/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:45 amYUL - SFO
1 stop8h 55mPorter Airlines
Tue 12/301:40 pmSFO - YUL
1 stop7h 55mPorter Airlines
Deal found 12/26![Porter Airlines logo]()
$745
This Air Canada deal was found by Cheapflights users on 12/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:10 pmYUL - SFO
1 stop16h 23mAir Canada
Sun 1/411:18 pmSFO - YUL
1 stop8h 05mAir Canada
Deal found 12/26![Air Canada logo]()
$750
This Delta deal was found by Cheapflights users on 12/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/262:40 pmYUL - SFO
1 stop12h 17mDelta
Mon 1/512:40 amSFO - YUL
1 stop10h 02mDelta
Deal found 12/25![Delta logo]()
$764
This Air Canada deal was found by Cheapflights users on 12/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:25 pmYUL - SFO
1 stop19h 20mAir Canada
Fri 1/28:25 amSFO - YUL
Nonstop5h 24mAir Canada
Deal found 12/26![Air Canada logo]()
$767
This Air Canada deal was found by Cheapflights users on 12/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:25 pmYUL - SFO
1 stop8h 40mAir Canada
Sun 1/411:18 pmSFO - YUL
1 stop9h 05mAir Canada
Deal found 12/26![Air Canada logo]()
$774
This Air Canada deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:10 pmYUL - SFO
1 stop8h 29mAir Canada
Mon 1/57:30 amSFO - YUL
1 stop10h 24mAir Canada
Deal found 12/24![Air Canada logo]()
$785
This Air Canada deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:00 amYUL - SFO
1 stop10h 25mAir Canada
Sun 1/411:18 pmSFO - YUL
1 stop9h 05mAir Canada
Deal found 12/24![Air Canada logo]()
$791
Find flight deals from Pierre Elliott Trudeau Intl to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to San Francisco (SFO). 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 December 26, 2025.
Most accurate provider | Gotogate 3 stars |
|---|---|
Most trusted provider | Gotogate 3 stars |
Round-trip from | $391 (WestJet) |
One-way from | $266 (Delta) |
Popular in | December |
Cheapest in | April |
Average price | $550 |
Good round-trip deal | $436 or less |
Good one-way deal | $319 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to San Francisco 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 December 26, 2025.
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
Pierre Elliott Trudeau Intl
Fly to
San Francisco
Route
Depart
Return
Price
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Mon 3/16
6:45 am-12:45 pm
1 stop9h 00m
San Francisco
Sun 3/22
9:33 pm-12:38 am
2 stops48h 05m
$391
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Thu 4/23
3:20 pm-11:18 pm
1 stop10h 58m
San Francisco
Sat 5/2
11:47 pm-11:15 am
1 stop8h 28m
$391
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Thu 4/23
6:45 am-12:10 pm
2 stops32h 25m
San Francisco
Thu 4/30
7:30 am-12:40 am
2 stops14h 10m
$391
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Fri 5/1
6:45 am-12:23 pm
1 stop8h 38m
San Francisco
Tue 5/5
1:25 pm-12:37 am
1 stop8h 12m
$395
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Wed 5/6
8:05 am-11:17 am
Nonstop6h 12m
San Francisco
Sat 5/9
11:50 am-8:15 pm
Nonstop5h 25m
$400
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Thu 2/19
6:45 am-12:45 pm
1 stop9h 00m
San Francisco
Wed 3/4
8:00 am-10:45 pm
2 stops11h 45m
$405
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Wed 2/18
6:45 am-12:45 pm
1 stop9h 00m
San Francisco
Wed 3/4
8:00 am-1:00 pm
2 stops26h 00m
$405
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Wed 2/18
5:50 pm-9:22 pm
Nonstop6h 32m
San Francisco
Thu 3/5
8:25 am-4:49 pm
Nonstop5h 24m
$407
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Sun 1/25
5:50 pm-9:22 pm
Nonstop6h 32m
San Francisco
Thu 2/5
7:30 am-7:25 pm
1 stop8h 55m
$407
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Tue 2/17
5:50 pm-9:22 pm
Nonstop6h 32m
San Francisco
Wed 3/4
8:25 am-4:49 pm
Nonstop5h 24m
$407
Showing 1-10 of 22 results
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 December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-San Francisco flights, users find the pricing of Gotogate to be most consistent on Cheapflights vs. Gotogate Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-San Francisco flight deals on Cheapflights vs. Gotogate >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 Gotogate the most. Gotogate 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.
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
Delays
How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?
Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to San Francisco. Price data was last updated on December 19, 2025.
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, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco (average of $218). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in December is currently the most expensive (average of $293). 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?
Find hourly flight availability from Pierre Elliott Trudeau Intl to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 26, 2025.
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 61% on the cost of your flight, compared to a flight in the evening.
How often are flights from Montreal to San Francisco delayed?
About 18% of weekly flights between Montreal and San Francisco have experienced delays in the past year, with the average delay time being 142 minutes.
What is the most punctual flight time for Montreal to San Francisco flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Montreal to San Francisco flights?
Over the last year, Air Canada have had the lowest number of delays on this route, with just 16% of flights being delayed.
The best insider tips for Montreal Pierre Elliott Trudeau Intl Airport to San Francisco 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 Montreal Pierre Elliott Trudeau Intl Airport to San Francisco trip
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated December 26, 2025.
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.
Crew
8.6
Boarding
8.2
Food
7.6
Entertainment
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Crew
8.6
Boarding
8.2
Food
7.6
Entertainment
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Crew
8.6
Boarding
8.2
Food
7.6
Entertainment
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Crew
8.6
Boarding
8.2
Food
7.6
Entertainment
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Related info for your journey
Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsRoseville
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Alternative routes for Pierre Elliott Trudeau Intl to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Pierre Elliott Trudeau Intl to San Francisco
Discover the top 3 airlines that operate flights from Pierre Elliott Trudeau Intl to San Francisco. 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 December 26, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$253 | Average$354 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$289 | Average$425 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$341 | Average$562 | FlexibilityNo cancel fee | On-time69% |