AirHint found the following cheapest return flights from Seattle (SEA) to Frankfurt (FRA) in July 2025 (see full year).

Return flights

29 Jul - 13 Aug	Condor	direct
28 Jul - 13 Aug	Condor	direct
27 Jul - 12 Aug	Condor
27 Jul - 12 Aug	Condor	direct
29 Jul - 10 Aug	Condor
29 Jul - 10 Aug	Condor	direct
30 Jul - 06 Aug	Condor
31 Jul - 03 Aug	Condor
30 Jul - 06 Aug	Condor	direct
31 Jul - 03 Aug	Condor	direct

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

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 July from 630€

Return flights