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There is a great new deal available on cheap flights from San Francisco, United States to Barcelona, Spain for as low as $315 return! That works out to a cost of just 2.7 Cents Per Mile for this 11900-mile journey.
Availability is a bit limited, but March 2021 still has the most dates with good prices.
Sample date(s) with Skyscanner.com booking link
We post many cheap flights like this one from San Francisco, United States to Barcelona, Spain every single day, so have a look at our Travel Deals page, or check out the related posts below!
Note: Prices are valid at the time of publishing this post, but may change in the future.