San Francisco (SFO) to Lisbon (LIS) flight deal from $577 USD in economy class

AAAmerican Airlines

AYFinnair

San Francisco International Airport

San Francisco, United States

LIS

Portela Airport

Lisbon, Portugal

$843 USD

-32%$577 USD

Verified Nov 3, 2025 at 3:42 AM

December 2025

Today

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1$585 2$585 3$585 4$635 5$635 6$599 7$585 8$585 9$585 10$585 11$635 12$729 13$622 14$616 15$616 16$802 17$1,162 18$1,360 19$1,817 20$1,729 21$1,681 22$1,216 23$975 24$991 25$914 26$860 27$728 28$678 29$612 30$585 31$585 1 2 3 4

Limited Availability

15% of dates checked are available within 10% of the lowest price

Saturday, December 20th, 2025

10 round-trip options

Returning

Thu, Dec 25, 2025•5 Day Trip

$1,807 USD

Google Flights

Returning

Fri, Dec 26, 2025•6 Day Trip

$1,870 USD

Google Flights

Returning

Sat, Dec 27, 2025•7 Day Trip

$1,930 USD

Google Flights

Returning

Sun, Dec 28, 2025•8 Day Trip

$1,856 USD

Google Flights

Returning

Mon, Dec 29, 2025•9 Day Trip

$1,856 USD

Google Flights

Returning

Tue, Dec 30, 2025•10 Day Trip

$1,729 USD

Google Flights

Returning

Wed, Dec 31, 2025•11 Day Trip

$1,729 USD

Google Flights

Returning

Thu, Jan 1, 2026•12 Day Trip

$2,177 USD

Google Flights

Returning

Fri, Jan 2, 2026•13 Day Trip

$2,833 USD

Google Flights

Returning

Sat, Jan 3, 2026•14 Day Trip

$2,903 USD

Google Flights