AirHint found the following cheapest return flights from Seattle (SEA) to Berlin (BER) in October 2025 (see full year).

Return flights

20 Oct - 22 Oct	Condor
15 Oct - 22 Oct	Condor
09 Oct - 16 Oct	Icelandair
15 Oct - 21 Oct	Aer Lingus
29 Oct - 05 Nov	United
21 Oct - 28 Oct	United
24 Oct - 31 Oct	United
03 Oct - 10 Oct	United
18 Oct - 25 Oct	United
06 Oct - 13 Oct	United
12 Oct - 19 Oct	United

Also check the deals for one-way flights from Seattle to Berlin in October.

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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Cheapest return flights from Seattle to Berlin in October from 418€

Return flights