Prices are in Canadian Dollars.

Cheap flights from Longueuil to San Francisco International

Round-trip
Economy
Montreal (YMQ)
San Francisco (SFO)
Depart
Return
Any month
Compare vs. Cheapflights |

The best prices from Longueuil to San Francisco International are usually found in January or August, booked 18 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

How to find the cheapest flight from
Longueuil (YMQ) to San Francisco International (SFO)

YMQ - SFO
Price
C$ 440 - C$ 766

Popular in

December

High demand for flights, 24% potential price rise

Cheapest in

January

Best time to find cheap flights, 24% potential price drop

Average price

C$ 440

Average for round-trip flights in January 2021

Round-trip from

C$ 440

From Longueuil to San Francisco International

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Longueuil to San Francisco International?

Saturday flights are generally found to be more expensive for flights from Longueuil to San Francisco International. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Francisco International.

How far in advance should I book a flight from Longueuil to San Francisco International?

Find a great deal and save up to 27% by booking at least 59 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Longueuil to San Francisco International within the next two weeks, with the cheapest ticket starting at C$ 692.

What is the cheapest month to fly from Longueuil to San Francisco International?

Our data shows that August tends to be the cheapest month to fly to San Francisco International from Longueuil. Users have commonly found prices around C$ 618 for the month, but tickets can be as low as C$ 519. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from Longueuil to San Francisco International (YMQ - SFO)?

One of the essential ways to save on airfare from Longueuil to San Francisco International is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 12% on airfare.

Cheap flights from Longueuil to San Francisco International in January, February 2021

19 Feb - 24 Feb
C$ 423pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
American Airlines
   
2 STOPS
YUL
Montreal Pierre Elliott Trudeau Intl
15 Feb - 24 Feb
C$ 451pp
YUL
Montreal Pierre Elliott Trudeau Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
United Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
25 Feb - 4 Mar
C$ 453pp
YUL
Montreal Pierre Elliott Trudeau Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
United Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl

Longueuil to San Francisco International 2021 flight deals

21 Apr - 25 Apr
C$ 421pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
American Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
19 Feb - 24 Feb
C$ 423pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
American Airlines
   
2 STOPS
YUL
Montreal Pierre Elliott Trudeau Intl
15 Feb - 24 Feb
C$ 451pp
YUL
Montreal Pierre Elliott Trudeau Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
United Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl

Direct flights to San Francisco International from Longueuil

10 May - 17 May
C$ 505pp
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
Direct
SFO
San Francisco
SFO
San Francisco
Air Canada
Direct
YUL
Montreal Pierre Elliott Trudeau Intl
21 Apr - 25 Apr
C$ 546pp
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
Direct
SFO
San Francisco
SFO
San Francisco
Air Canada
Direct
YUL
Montreal Pierre Elliott Trudeau Intl

Last minute flights from Longueuil to San Francisco International

3 Feb - 10 Feb
C$ 762pp
YUL
Montreal Pierre Elliott Trudeau Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
United Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
3 Feb - 10 Feb
C$ 775pp
YUL
Montreal Pierre Elliott Trudeau Intl
Multiple Airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
United Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
3 Feb - 10 Feb
C$ 827pp
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
Air Canada
   
2 STOPS
YUL
Montreal Pierre Elliott Trudeau Intl

Related info for your journey

Flight FAQs

From Longueuil to San Francisco International

Can I find flights from Longueuil to San Francisco International for under C$ 509 on Cheapflights?

Yes, there are multiple flights from Longueuil to San Francisco International for under C$ 509. The cheapest flight booked recently is on American Airlines for just C$ 421, but on average you can expect to pay C$ 507.

What safety measures are being taken by airlines flying from Montreal to San Francisco to control the spread of COVID-19?

New policies can now be found on Delta to help keep travellers safe while flying. Some of the new policies that have been implemented to accommodate travellers flying from Montreal to San Francisco are improved sanitation, HEPA filters, mask requirements, socially-distanced seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Montreal to San Francisco have flexible cancellations due to COVID-19?

Air Canada, American Airlines, and Delta are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Are there direct flights from Longueuil to San Francisco International for under C$ 509 on Cheapflights?

Cheapflights has 2 direct flights from Longueuil to San Francisco International under C$ 509. A good price for a direct flight from Longueuil to San Francisco International is less than C$ 526.

Are there last-minute flights available from Longueuil to San Francisco International for under C$ 764?

There are currently 3+ open flights from Longueuil to San Francisco International within the next 7 days for less than C$ 764.

Is Montreal weather warmer or cooler than San Francisco?

Temperatures around the 27 °C's can be experienced in July. The weather in San Francisco is colder than in Montreal. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Longueuil to San Francisco International?

There are many flights that can get you from Longueuil to San Francisco International in 6h 15m. Fly via Air Canada, Delta, or United Airlines to get the fastest option. This flight may include one or multiple stops.

What are the cheapest airlines to flying from Longueuil to San Francisco International round-trip?

Cheapflights users have booked flights from Longueuil to San Francisco International round-trip from C$ 422. Other airlines that can offer you cheap pricing are United Airlines, from C$ 497, and Air Canada, from C$ 499. These flights start at 27% lower than the current average price 3 months from now.

Related searches

Flights to San Francisco International from Longueuil
Flights to Longueuil Flights to San Francisco International

Rent a Car

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Destination information for San Francisco International

Today's exchange rate
C$ 1 = $0.79
Flight duration
5h 51m

Airports servicing Montreal

Saint-Hubert Airport (YHU)

Airports servicing San Francisco

Top 5 airlines flying from Longueuil to San Francisco International

Airline Cheapest Average Flexibility On-time COVID-19 safety
American Airlines
C$ 182 C$ 355 No cancel fee 71%
Search American Airlines flights
Delta
C$ 241 C$ 384 No cancel fee N/A
Search Delta flights
WestJet
C$ 226 C$ 423 No cancel fee 60%
Search WestJet flights
United Airlines
C$ 332 C$ 505 No cancel fee 69%
Search United Airlines flights
Air Canada
C$ 396 C$ 559 No cancel fee 67%
Search Air Canada flights
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