Cheapest return flights from Seattle to Barcelona in November from $446

AirHint found the following cheapest return flights from Seattle (SEA) to Barcelona (BCN) in November 2025 (see full year).

Return flights

12 Nov - 19 Nov Aer Lingus
19 Nov - 26 Nov Aer Lingus
19 Nov - 27 Nov Icelandair
05 Nov - 13 Nov Icelandair
18 Nov - 25 Nov British Airways
07 Nov - 15 Nov Icelandair
11 Nov - 19 Nov Icelandair
17 Nov - 25 Nov Icelandair
02 Nov - 10 Nov Aer Lingus
09 Nov - 17 Nov Aer Lingus
25 Nov - 03 Dec KLM
26 Nov - 04 Dec United
24 Nov - 02 Dec United
23 Nov - 01 Dec Aer Lingus

Also check the deals for one-way flights from Seattle to Barcelona in November.

Skyscanner

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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