International route
Cheap flights from Cancun to San Francisco
Cancún International Airport (CUN) to San Francisco International Airport (SFO). 2,406 miles, 5h 35m nonstop.
CUN to SFO at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 2,406 milesgreat-circle
- Typical flight time
- 5h 35mnonstop, gate to gate
- Nonstop airlines
- UAASF9G47 airlinesUnited, Alaska, Frontier
- Nonstop flights per day
- 13all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday20% less than Sunday
- Time difference
- 2h behindSan Francisco vs Cancun
Cancun to San Francisco
Round trips from $175
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 WhatsAppCancun 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 Cancun to San Francisco
7 airlines fly nonstop with 13 departures a day combined, plus 10 more with one stop.
- ASAlaska AirlinesoneworldNonstop · 3 flights a day · first checked bag from $35
- UAUnited AirlinesStar AllianceNonstop · 3 flights a day · first checked bag from $40
- VBVivaLow-costNonstop · 2 flights a day · first checked bag from $45
- Y4VolarisLow-costNonstop · 2 flights a day · first checked bag from $45
- G4Allegiant AirLow-costNonstop · 1 flight a day · first checked bag from $50
- F9Frontier 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 MEX, MTY, GDL · first checked bag from $40
- ACAir CanadaStar AllianceConnecting via YVR, YYC · first checked bag from $35
- AAAmerican AirlinesoneworldConnecting via DFW, CLT, ORD, MIA, PHX, LAX, DCA · first checked bag from $40
- AVAviancaStar AllianceConnecting via SAL · first checked bag from $45
- MXBreeze AirwaysLow-costConnecting via CHS, TPA, RDU, ORF · first checked bag from $45
- DLDelta Air LinesSkyTeamConnecting via ATL, MSP, DTW, SLC, SEA, LAX · first checked bag from $35
- B6JetBlueConnecting via FLL, MCO, LAX · first checked bag from $40
- WNSouthwest AirlinesLow-costConnecting via DAL, HOU, MDW, BWI, DEN, LAS, PHX, MCO, ATL, BNA, LAX, SAN, STL, AUS · first checked bag from $35
- NKSpirit AirlinesLow-costConnecting via FLL, LAS, DTW, MCO, DFW, ATL, IAH · first checked bag from $55
- WSWestJetConnecting via YYC, YVR · first checked bag from $35
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Los Angeles (LAX)AADLWNB64 airlines
- Atlanta (ATL)DLWNNK3 airlines
- Orlando (MCO)WNB6NK3 airlines
- Dallas (DFW)AANK2 airlines
- Phoenix (PHX)AAWN2 airlines
Which airport should I use?
CancunSan 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
- United, Alaska, Frontier and Allegiant Air all fly CUN 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 $175; September 2026 is the most expensive at $229 and up, a difference of $54 per traveler.
- Departing on a Tuesday averages 20% 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 2 hours behind Cancun. 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 CancunFares, airlines and tips for SFO to CUN.Ready to compare live fares?
See every airline on CUN–SFO side by side with bags and seat rules spelled out.
Search Cancun to San FranciscoCancun to San Francisco: common questions
How long is the flight from Cancun to San Francisco?
A nonstop flight from Cancun (CUN) to San Francisco (SFO) takes about 5h 35m gate to gate, covering 2,406 miles. Connecting itineraries add the layover, typically 2 to 5 hours more in total.
Which airlines fly nonstop from CUN to SFO?
United Airlines, Alaska Airlines, Frontier Airlines, Allegiant Air, Sun Country Airlines, Viva and Volaris operate nonstop flights from Cancun (CUN) to San Francisco (SFO), with 13 nonstop departures a day between them. One-stop options connect through LAX, ATL and MCO.
What is the cheapest month to fly from Cancun to San Francisco?
Over the next six months, January 2027 has the lowest round-trip fares from Cancun (CUN) to San Francisco (SFO), starting at $175 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Cancun 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 Cancun and San Francisco?
San Francisco is 2 hours behind Cancun. CUN is on America/Cancun 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 Cancun
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