AirHint found the following cheapest return flights from Washington (IAD) to Prague (PRG) in May 2026 (see full year).
Return flights
| 12 May - 21 May | TAP | ||
| 18 May - 25 May | TAP | ||
| 20 May - 13 Jun | TAP | ||
| 01 May - 10 May | United | ||
| 09 May - 30 May | Turkish Airlines | ||
| 19 May - 30 May | TAP | ||
| 19 May - 31 May | Lufthansa | ||
| 22 May - 13 Jun | TAP |
Also check the deals for one-way flights from Washington to Prague in May.
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