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

Monday, December 14th, 2026

4 round-trip options

Returning
Mon, Dec 21, 20267 Day Trip
$709 USD
Returning
Tue, Dec 22, 20268 Day Trip
$619 USD
Returning
Wed, Dec 23, 20269 Day Trip
$619 USD
Returning
Thu, Dec 24, 202610 Day Trip
$609 USD