Lisbon (LIS) to San Francisco (SFO) flight deal from $611 USD in economy class

AAAmerican Airlines

AYFinnair

Portela Airport

Lisbon, Portugal

SFO

San Francisco International Airport

San Francisco, United States

$891 USD

-31%$611 USD

Verified Nov 3, 2025 at 3:43 AM

December 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1$945 2$802 3$772 4$751 5$751 6$751 7$750 8$751 9$751 10$750 11$905 12$884 13$756 14$756 15$756 16$751 17$751 18$751 19$751 20$798 21$865 22$798 23$772 24$751 25$851 26$882 27$888 28$881 29$1,058 30$1,064 31$1,087 1 2 3 4

Extremely Rare Availability

2% of dates checked are available within 10% of the lowest price

Sunday, December 21st, 2025

10 round-trip options

Returning

Fri, Dec 26, 2025•5 Day Trip

$1,003 USD

Google Flights

Returning

Sat, Dec 27, 2025•6 Day Trip

$898 USD

Google Flights

Returning

Sun, Dec 28, 2025•7 Day Trip

$870 USD

Google Flights

Returning

Mon, Dec 29, 2025•8 Day Trip

$870 USD

Google Flights

Returning

Tue, Dec 30, 2025•9 Day Trip

$865 USD

Google Flights

Returning

Wed, Dec 31, 2025•10 Day Trip

$865 USD

Google Flights

Returning

Thu, Jan 1, 2026•11 Day Trip

$869 USD

Google Flights

Returning

Fri, Jan 2, 2026•12 Day Trip

$1,091 USD

Google Flights

Returning

Sat, Jan 3, 2026•13 Day Trip

$1,030 USD

Google Flights

Returning

Sun, Jan 4, 2026•14 Day Trip

$949 USD

Google Flights