Cheap flights from San Francisco International to Cancún International from $249
Updated 2026-06-17
2405 miles great-circle distance, typically flown in 5h 14m with 7 airlines operating direct service from San Francisco International (SFO) to Cancún International (CUN). Cheapest fares are usually in Jul (around $249 return), with peak prices in Jul (around $747). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from San Francisco International
San Francisco International is United's main Pacific hub and Alaska Airlines' largest non-Seattle base. Four terminals form a single ring connected by the AirTrain shuttle, with BART running from the dedicated airport station directly to Powell Street downtown in around 30 minutes for $10. Heavy fog from May through August causes chronic morning delays — book mid-day departures during summer where possible. International long-haul to Asia and Europe is the deepest on the West Coast.
Arriving in Cancún
Cancún International is 16 km south of Cancún's hotel zone. ADO bus runs direct to the centre and the Riviera Maya for 110–230 MXN; private resort transfers cost $40–$80 per person. The route from the US is one of the busiest international corridors in the world, with daily fares from any major US hub. Hurricane season (June–November) brings cheaper fares and fewer crowds; peak demand is Christmas, spring break and US Thanksgiving.
Who flies SFO to CUN?
| Airline | IATA | Flight time | Cabin |
| United Airlines | UA | 5h 14m | Economy |
| Alaska Airlines | AS | 5h 14m | Economy |
| American Airlines | AA | 5h 14m | Economy |
| Delta Air Lines | DL | 5h 14m | Economy |
| Southwest Airlines | WN | 5h 14m | Economy |
| JetBlue Airways | B6 | 5h 14m | Economy |
| Hawaiian Airlines | HA | 5h 14m | Economy |
7 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly SFO→CUN
Aggregated from 12 months of Travelpayouts fare data. Cheapest months in green, peak in red.
Source: Travelpayouts route data, refreshed every 30 days. Cheapest day-of-week typically Tuesday.
San Francisco to Cancún FAQs
Direct flights from San Francisco International (SFO) to Cancún International (CUN) take approximately 5h 14m for the 2405-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
Jul is typically the cheapest month on this route, with one-way fares from $249. Jul is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
7 carriers operate direct service from San Francisco International (SFO) to Cancún International (CUN): United Airlines, Alaska Airlines, American Airlines, Delta Air Lines, Southwest Airlines and 2 more. Frequencies vary by season and carrier — United Airlines typically operates the highest weekly count on this corridor.
No visa required for US passport holders for stays up to 180 days. FMM tourist card included with airfare and issued at arrival. Always check travel.state.gov for the latest entry requirements before booking.
Cancún International (CUN) is the primary international airport for Cancún. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.