San Francisco to Barcelona or Madrid, Spain from only $412 roundtrip

Missed the deal?

Become a Secret Flying member to receive alerts to your inbox the moment we publish a flight deal.

You'll never miss a Secret Flying deal again.

Cheap flights from San Francisco to Barcelona or Madrid, Spain from only $412 roundtrip.

Fly to:
Barcelona: $412-$432
Madrid: $466

DEPART:
San Francisco, USA

ARRIVE:
Barcelona/Madrid, Spain

RETURN:
San Francisco, USA

DATES:
Availability from September 2025 to February 2026 (excluding Christmas/New Year)

Example dates:

San Francisco – Barcelona: $412-$432
20th-27th Sep
27th Sep – 4th Oct
14th-21st Oct

San Francisco – Madrid: $466
20th-27th Jan
21st-28th Jan
28th Jan – 4th Feb
3rd-10th Feb
4th-11th Feb
11th-18th Feb
17th-24th Feb

and more…

STOPS:

AIRLINES:
Level