AirHint found the following cheapest return flights from Seattle (SEA) to Prague (PRG) in April 2026 (see full year).
Return flights
| 20 Apr - 04 May | British Airways | ||
| 17 Apr - 01 May | British Airways | ||
| 16 Apr - 07 May | Delta | ||
| 20 Apr - 02 May | Delta | ||
| 05 Apr - 12 Apr | Lufthansa |
Also check the deals for one-way flights from Seattle to Prague in April.
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