AirHint found the following cheapest return flights from Seattle (SEA) to Frankfurt (FRA) in April 2026 (see full year).
Return flights
| 20 Apr - 06 May | Condor | direct | |
| 26 Apr - 10 May | Icelandair | ||
| 27 Apr - 30 Apr | Condor | ||
| 26 Apr - 10 May | Condor | direct | |
| 27 Apr - 30 Apr | Condor | direct | |
| 14 Apr - 21 Apr | Turkish Airlines | ||
| 17 Apr - 19 Apr | Air France |
Also check the deals for one-way flights from Seattle to Frankfurt in April.
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