International route
Cheap flights from Montreal to San Francisco
Montréal-Trudeau International Airport (YUL) to San Francisco International Airport (SFO). 2,533 miles, 5h 30m nonstop.
YUL to SFO at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 2,533 milesgreat-circle
- Typical flight time
- 5h 30mnonstop, gate to gate
- Nonstop airlines
- DLUAWNAS8 airlinesDelta, United, Southwest
- Nonstop flights per day
- 14all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday17% less than Sunday
- Time difference
- 3h behindSan Francisco vs Montreal
Montreal to San Francisco
Round trips from $158
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 5.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppMontreal to San Francisco fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Montreal to San Francisco
8 airlines fly nonstop with 14 departures a day combined, plus 8 more with one stop.
- ACAir CanadaStar AllianceNonstop · 3 flights a day · first checked bag from $35
- ASAlaska AirlinesoneworldNonstop · 3 flights a day · first checked bag from $35
- UAUnited AirlinesStar AllianceNonstop · 3 flights a day · first checked bag from $40
- G4Allegiant AirLow-costNonstop · 1 flight a day · first checked bag from $50
- DLDelta Air LinesSkyTeamNonstop · 1 flight a day · first checked bag from $35
- WNSouthwest AirlinesLow-costNonstop · 1 flight a day · first checked bag from $35
- NKSpirit AirlinesLow-costNonstop · 1 flight a day · first checked bag from $55
- SYSun Country AirlinesLow-costNonstop · 1 flight a day · first checked bag from $45
- AMAeroméxicoSkyTeamConnecting via MTY, GDL · first checked bag from $40
- AAAmerican AirlinesoneworldConnecting via DFW, CLT, ORD, MIA, PHX, PHL, LAX, DCA, JFK · first checked bag from $40
- MXBreeze AirwaysLow-costConnecting via PVD, CHS, TPA, RDU, BDL, ORF · first checked bag from $45
- F9Frontier AirlinesLow-costConnecting via DEN, LAS, MCO, PHL, ATL, PHX, CLE · first checked bag from $55
- B6JetBlueConnecting via JFK, BOS, FLL, MCO, LAX · first checked bag from $40
- VBVivaLow-costConnecting via MTY, GDL · first checked bag from $45
- Y4VolarisLow-costConnecting via GDL, TIJ · first checked bag from $45
- WSWestJetConnecting via YYC, YVR, YYZ · first checked bag from $35
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Guadalajara (GDL)AMVBY43 airlines
- Phoenix (PHX)AAF92 airlines
- Philadelphia (PHL)AAF92 airlines
- Los Angeles (LAX)AAB62 airlines
- New York (JFK)AAB62 airlines
Which airport should I use?
MontrealSan Francisco has 3 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.
Tips for this route
- Delta, United, Southwest and Alaska all fly YUL to SFO nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $158; September 2026 is the most expensive at $205 and up, a difference of $47 per traveler.
- Departing on a Tuesday averages 17% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays.
- San Francisco is 3 hours behind Montreal. A morning departure lands in San Francisco with most of the day left; an evening flight arrives close to local dinner time.
Destination guide
San Francisco: Fog, hills and the Golden Gate
San Francisco packs cable cars, the Golden Gate Bridge, Alcatraz and world-class food into 49 square miles. SFO is the main gateway; Oakland and San Jose are handy alternatives with lower fares on many routes.
Best time to visit: September and October are the warmest, clearest months. Spring (April–May) is green and mild. Summer fog ('Karl') keeps the coast cool; winter is rainy but inexpensive.
Flying the other way? San Francisco to MontrealFares, airlines and tips for SFO to YUL.Ready to compare live fares?
See every airline on YUL–SFO side by side with bags and seat rules spelled out.
Search Montreal to San FranciscoMontreal to San Francisco: common questions
How long is the flight from Montreal to San Francisco?
A nonstop flight from Montreal (YUL) to San Francisco (SFO) takes about 5h 30m gate to gate, covering 2,533 miles. Connecting itineraries add the layover, typically 2 to 5 hours more in total.
Which airlines fly nonstop from YUL to SFO?
Delta Air Lines, United Airlines, Southwest Airlines, Alaska Airlines, Spirit Airlines, Allegiant Air, Sun Country Airlines and Air Canada operate nonstop flights from Montreal (YUL) to San Francisco (SFO), with 14 nonstop departures a day between them. One-stop options connect through GDL, PHX and PHL.
What is the cheapest month to fly from Montreal to San Francisco?
Over the next six months, January 2027 has the lowest round-trip fares from Montreal (YUL) to San Francisco (SFO), starting at $158 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Montreal to San Francisco flights?
Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Montreal and San Francisco?
San Francisco is 3 hours behind Montreal. YUL is on America/Toronto time and SFO on America/Los Angeles time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.
More flights from Montreal
All routesMore flights to San Francisco
All routes- New York to San FranciscoJFK → SFOfrom $239
- Chicago to San FranciscoORD → SFOfrom $159
- Los Angeles to San FranciscoLAX → SFOfrom $63
- Seattle to San FranciscoSEA → SFOfrom $80
- Honolulu to San FranciscoHNL → SFOfrom $243
- Vancouver to San FranciscoYVR → SFOfrom $107
- London to San FranciscoLHR → SFOfrom $513
- Paris to San FranciscoCDG → SFOfrom $508