San Francisco (SFO) to Cancún (CUN) flight deal in economy from $345

Sunday, December 20th, 2026

4 round-trip options

Returning
Sun, Dec 27, 20267 Day Trip
$1,409 USD
Returning
Mon, Dec 28, 20268 Day Trip
$1,252 USD
Returning
Tue, Dec 29, 20269 Day Trip
$1,252 USD
Returning
Wed, Dec 30, 202610 Day Trip
$1,252 USD