AirHint found the following cheapest one-way flights from Seattle (SEA) to Barcelona (BCN) in July 2026 (see full year).
One-Way flights
| 26 Jul | KLM | ||
| 28 Jul | KLM | ||
| 13 Jul | Air France | ||
| 25 Jul | Icelandair | ||
| 20 Jul | KLM | ||
| 21 Jul | KLM | ||
| 07 Jul | Air France | ||
| 12 Jul | Air France | ||
| 06 Jul | Air France | ||
| 22 Jul | KLM |
Also check the deals for return flights from Seattle to Barcelona in July.
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