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

Saturday, December 12th, 2026

4 round-trip options

Returning
Sat, Dec 19, 20267 Day Trip
$743 USD
Returning
Sun, Dec 20, 20268 Day Trip
$743 USD
Returning
Mon, Dec 21, 20269 Day Trip
$743 USD
Returning
Tue, Dec 22, 202610 Day Trip
$653 USD