AirHint found the following cheapest return flights from Seattle (SEA) to Frankfurt (FRA) in January 2026 (see full year).

Return flights

12 Jan - 19 Jan	Icelandair
22 Jan - 29 Jan	Icelandair
12 Jan - 19 Jan	Condor	direct
15 Jan - 22 Jan	Condor	direct
22 Jan - 29 Jan	Condor	direct
17 Jan - 24 Jan	Condor	direct
19 Jan - 26 Jan	Condor	direct
26 Jan - 02 Feb	Condor	direct
29 Jan - 05 Feb	Condor	direct
31 Jan - 14 Feb	Condor	direct
10 Jan - 17 Jan	Condor	direct
05 Jan - 12 Jan	Condor	direct
08 Jan - 15 Jan	Condor	direct
31 Jan - 07 Feb	Condor	direct
27 Jan - 03 Feb	Icelandair

Also check the deals for one-way flights from Seattle to Frankfurt in January.

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 Frankfurt in January from $506

Return flights