United AirlinesDepart23:00
Mon, Nov 30SFO → CUN
5h 13m · Direct
$192one way, per person
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- Cheapest fare
- $192
- Cheapest month
- November
- Direct flights
- Yes
- Flight time
- 5h 13m
United Airlines · Mon, Nov 30
from $192
United Airlines
3,870 km
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Cheapest month to fly from San Francisco to Cancun
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
See every date in November 2026 →
Plan the rest of your trip to Cancun
Where to stay, what to do and getting around, from our travel partners.
Getting around
About flights from San Francisco to Cancun
San Francisco (SFO) and Cancun (CUN) are about 3,870 km apart. Direct flights take around 5h 13m, and recent direct fares were with United Airlines. Over the next few months, one-way fares start from $192, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from San Francisco to Cancun?
The cheapest one-way fare we've seen recently is $192 with United Airlines, departing Monday, November 30, 2026. Over the coming months, the lowest fare in each month ranges from $192 to $241.
What is the cheapest month to fly from San Francisco to Cancun?
November 2026 currently has the lowest fares, from $192 one way.
Are there direct flights from San Francisco to Cancun?
Yes. Recent direct fares were with United Airlines.
How long is the flight from San Francisco to Cancun?
A direct flight takes about 5h 13m. San Francisco and Cancun are around 3,870 km apart.
Which airlines fly from San Francisco to Cancun?
Recent fares on this route were with United Airlines, Air Canada, Southwest Airlines and Frontier Airlines.
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