AirHint found the following cheapest return flights from Seattle (SEA) to Frankfurt (FRA) in June 2026 (see full year).
Return flights
| 04 Jun - 18 Jun | Condor | direct | |
| 11 Jun - 17 Jun | Condor | direct | |
| 07 Jun - 21 Jun | Condor | direct | |
| 02 Jun - 16 Jun | Condor | ||
| 22 Jun - 02 Jul | Condor | direct | |
| 17 Jun - 27 Jun | Condor | direct |
Also check the deals for one-way flights from Seattle to Frankfurt in June.
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