Lisbon (LIS) to San Francisco (SFO) cheap flight deal from $3776 USD in first class

AAAmerican Airlines

BABritish Airways

Round Trip•First Class

LIS

Portela Airport

Lisbon, Portugal

SFO

San Francisco International Airport

San Francisco, United States

$9,506 USD

-60%$3,776 USD

Verified Sep 19, 2025 at 1:30 PM

September 2025

Today

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20$7,074 21 22$11,251 23$11,212 24$11,259 25$11,265 26$10,509 27$10,509 28$7,545 29$10,545 30$10,509 1$10,545 2$10,545 3$11,259 4$11,259 5

Fair Availability

23% of dates checked are available within 10% of the lowest price

Monday, September 29th, 2025

8 round-trip options

Returning

Sat, Oct 4, 2025•5 Day Trip

$15,495 USD

Google Flights

Returning

Sun, Oct 5, 2025•6 Day Trip

$15,495 USD

Google Flights

Returning

Mon, Oct 6, 2025•7 Day Trip

$10,545 USD

Google Flights

Returning

Tue, Oct 7, 2025•8 Day Trip

$10,545 USD

Google Flights

Returning

Wed, Oct 8, 2025•9 Day Trip

$11,294 USD

Google Flights

Returning

Thu, Oct 9, 2025•10 Day Trip

$15,515 USD

Google Flights

Returning

Fri, Oct 10, 2025•11 Day Trip

$11,294 USD

Google Flights

Returning

Sat, Oct 11, 2025•12 Day Trip

$11,294 USD

Google Flights