San Francisco (SFO) to Barcelona (BCN) flight deal from $434 USD in economy class

AYFinnair

Round Trip•Economy

SFO

San Francisco International Airport

San Francisco, United States

BCN

Barcelona Airport

Barcelona, Spain

$977 USD

-56%$434 USD

Verified Dec 1, 2025 at 9:02 AM

December 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 2$1,276 3$3,355 4 5$1,338 6$3,734 7$1,248 8 9$1,036 10 11$3,048 12 13 14$1,316 15$1,004 16$1,191 17$1,571 18 19$3,815 20$3,605 21$3,605 22 23$3,605 24 25$1,868 26 27$1,763 28 29 30$1,178 31$718 1$756 2 3 4

Extremely Rare Availability

3% of dates checked are available within 10% of the lowest price

Thursday, December 11th, 2025

8 round-trip options

Returning

Tue, Dec 16, 2025•5 Day Trip

$3,355 USD

Google Flights

Returning

Wed, Dec 17, 2025•6 Day Trip

$3,766 USD

Google Flights

Returning

Thu, Dec 18, 2025•7 Day Trip

$3,470 USD

Google Flights

Returning

Fri, Dec 19, 2025•8 Day Trip

$5,563 USD

Google Flights

Returning

Sat, Dec 20, 2025•9 Day Trip

$12,046 USD

Google Flights

Returning

Sun, Dec 21, 2025•10 Day Trip

$3,460 USD

Google Flights

Returning

Mon, Dec 22, 2025•11 Day Trip

$4,431 USD

Google Flights

Returning

Tue, Dec 23, 2025•12 Day Trip

$3,048 USD

Google Flights