Cheapest one-way flights from Seattle (SEA) to Barcelona (BCN), October

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
13 Oct Alaska Airlines
21 Oct Alaska Airlines
17 Oct Icelandair
05 Oct Icelandair
16 Oct Icelandair
24 Oct Icelandair
22 Oct Icelandair
23 Oct Icelandair
09 Oct Icelandair
13 Oct Air France
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deals for return flights from Seattle to Barcelona in October.

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Updated Jul 17, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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