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

Monday, December 21st, 2026

4 round-trip options

Returning
Mon, Dec 28, 20267 Day Trip
$1,202 USD
Returning
Tue, Dec 29, 20268 Day Trip
$1,202 USD
Returning
Wed, Dec 30, 20269 Day Trip
$1,202 USD
Returning
Thu, Dec 31, 202610 Day Trip
$1,077 USD