Lisbon (LIS) to San Francisco (SFO) flight deal in economy from $637

Tuesday, December 29th, 2026

5 round-trip options

Returning
Mon, Jan 4, 20276 Day Trip
$879 USD
Returning
Tue, Jan 5, 20277 Day Trip
$879 USD
Returning
Thu, Jan 7, 20279 Day Trip
$809 USD
Returning
Fri, Jan 8, 202710 Day Trip
$793 USD
Returning
Mon, Jan 11, 202713 Day Trip
$781 USD