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

Most accurate provider | Gotogate 3 stars |
|---|---|
Most trusted provider | Gotogate 3 stars |
Round-trip from | $350 (Kiwi.com) |
One-way from | $228 (Air Canada) |
Popular in | December |
Cheapest in | April |
Average price | $391 |
Good round-trip deal | $538 or less |
Good one-way deal | $284 or less |
Fly from
Fly to
Route
Depart
Return
Price
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Thu 12/4
12:50 pm-10:31 pm
2 stops12h 41m
San Francisco
Wed 12/10
10:30 am-11:47 pm
2 stops10h 17m
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Sun 3/1
6:45 am-12:40 pm
1 stop8h 55m
San Francisco
Mon 3/2
1:40 pm-12:35 am
1 stop7h 55m
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Wed 12/17
7:00 am-9:05 pm
2 stops17h 05m
San Francisco
Tue 12/30
8:50 pm-2:00 pm
2 stops14h 10m
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Sun 1/25
2:40 pm-11:47 pm
1 stop12h 07m
San Francisco
Wed 2/4
12:47 am-1:42 pm
1 stop9h 55m
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Wed 2/4
9:15 am-5:19 pm
1 stop11h 04m
San Francisco
Sun 2/15
10:50 pm-2:00 pm
1 stop12h 10m
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Mon 2/2
12:54 pm-11:27 pm
1 stop13h 33m
San Francisco
Thu 2/5
12:47 am-1:42 pm
1 stop9h 55m
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Wed 2/4
9:15 am-10:57 pm
1 stop16h 42m
San Francisco
Mon 2/16
11:59 pm-2:00 pm
1 stop11h 01m
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Thu 12/4
2:13 pm-9:01 pm
1 stop9h 48m
San Francisco
Wed 12/10
8:25 am-7:48 pm
1 stop8h 23m
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Mon 2/9
6:02 pm-12:50 pm
2 stops21h 48m
San Francisco
Tue 2/17
10:54 pm-6:37 pm
2 stops16h 43m
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Mon 2/9
6:45 am-12:10 pm
2 stops32h 25m
San Francisco
Fri 2/13
1:00 pm-12:38 am
2 stops32h 38m
| 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 | |
| Price Accuracy1 star | Trust Score*3 stars |
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.
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 $219). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in October is currently the most expensive (average of $292). 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.
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.
About 15% of weekly flights between Montreal and San Francisco have experienced delays in the past year, with the average delay time being 145 minutes.
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.
Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Air New Zealand have had the lowest number of delays on this route, with just 14% of flights being delayed.
Toronto (YYZ) – chosen by Cheapflights users on 88% of 1-stop itineraries from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco on Cheapflights.
Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 8h 55m.
Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 8h 55m.
Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 36m.
Crew
Comfort
Food
Overall
Boarding
Entertainment
Reviews
Kelly,Nov 2025
YVR - YUL
Crew
Comfort
Food
Overall
Boarding
Entertainment
Reviews
Kelly,Nov 2025
YVR - YUL
Crew
Comfort
Food
Overall
Boarding
Entertainment
Reviews
Kelly,Nov 2025
YVR - YUL
Crew
Comfort
Food
Overall
Boarding
Entertainment
Reviews
Kelly,Nov 2025
YVR - YUL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$253 | Average$324 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$289 | Average$423 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$341 | Average$525 | FlexibilityNo cancel fee | On-time69% |