AirHint found the following cheapest one-way flights from San Francisco (SFO) to Barcelona (BCN) in May 2026 (see full year).
One-Way flights
| 05 May | LEVEL | direct | |
| 02 May | Alaska Airlines | ||
| 10 May | LEVEL | direct | |
| 12 May | LEVEL | direct | |
| 06 May | Alaska Airlines | ||
| 21 May | LEVEL | direct | |
| 01 May | Alaska Airlines | ||
| 23 May | WestJet | ||
| 26 May | LEVEL | direct | |
| 15 May | WestJet |
Also check the deals for return flights from San Francisco to Barcelona in May.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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