International route
Cheap flights from San Francisco to Cancun
San Francisco International Airport (SFO) to Cancún International Airport (CUN). 2,406 miles, 5h 5m nonstop.
SFO to CUN 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 5mnonstop, gate to gate
- Nonstop airlines
- UAASF9G47 airlinesUnited, Alaska, Frontier
- Nonstop flights per day
- 13all airlines combined
- Cheapest month
- October 2026over the next six months
- Best day to fly
- Tuesday19% less than Friday
- Time difference
- 2h aheadCancun vs San Francisco
San Francisco to Cancun
Round trips from $208
Per traveler, taxes and fees included. Lowest fare we found departs Wed, Oct 7.
Cheapest month: October 2026
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppSan Francisco to Cancun 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 San Francisco to Cancun
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?
San 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 SFO to CUN 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.
- October 2026 is the cheapest month to fly over the next six months, with round trips from $208; September 2026 is the most expensive at $239 and up, a difference of $31 per traveler.
- Departing on a Tuesday averages 19% less than a Friday 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.
- Cancun is 2 hours ahead of San Francisco. Expect to lose 2 hours on the clock heading east, so an overnight or late-afternoon departure tends to arrive at a more usable hour.
Destination guide
Cancún: Caribbean water three hours from most of the US
Cancún is the most-flown international destination from the United States, with nonstops from more than 40 US cities. The Hotel Zone's beaches, the Riviera Maya's cenotes and Mayan ruins, and all-inclusive resorts keep it competitive year-round.
Best time to visit: December–April is dry and sunny (and priciest around Christmas and spring break). May–June and November are warm with lower fares; August–October brings the highest storm risk and the cheapest all-inclusive rates.
Flying the other way? Cancun to San FranciscoFares, airlines and tips for CUN to SFO.Ready to compare live fares?
See every airline on SFO–CUN side by side with bags and seat rules spelled out.
Search San Francisco to CancunSan Francisco to Cancun: common questions
How long is the flight from San Francisco to Cancun?
A nonstop flight from San Francisco (SFO) to Cancun (CUN) takes about 5h 5m 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 SFO to CUN?
United Airlines, Alaska Airlines, Frontier Airlines, Allegiant Air, Sun Country Airlines, Viva and Volaris operate nonstop flights from San Francisco (SFO) to Cancun (CUN), 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 San Francisco to Cancun?
Over the next six months, October 2026 has the lowest round-trip fares from San Francisco (SFO) to Cancun (CUN), starting at $208 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book San Francisco to Cancun 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 San Francisco and Cancun?
Cancun is 2 hours ahead of San Francisco. SFO is on America/Los Angeles time and CUN on America/Cancun 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 San Francisco
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- San Francisco to SeattleSFO → SEAfrom $80
- San Francisco to HonoluluSFO → HNLfrom $244
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