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

Thursday, December 31st, 2026

4 round-trip options

Returning
Thu, Jan 7, 20277 Day Trip
$529 USD
Returning
Fri, Jan 8, 20278 Day Trip
$634 USD
Returning
Sat, Jan 9, 20279 Day Trip
$613 USD
Returning
Sun, Jan 10, 202710 Day Trip
$709 USD