Cheapest return flights from San Francisco to Cancun in May from $333

AirHint found the following cheapest return flights from San Francisco (SFO) to Cancun (CUN) in May 2026 (see full year).

Return flights

02 May - 05 May Aeromexico
14 May - 18 May Aeromexico
05 May - 09 May United
01 May - 05 May United
15 May - 22 May Aeromexico
15 May - 20 May Delta
07 May - 10 May Aeromexico
22 May - 24 May jetBlue
21 May - 27 May Avianca
21 May - 25 May Aeromexico
24 May - 04 Jun Delta

Also check the deals for one-way flights from San Francisco to Cancun in May.

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