AirHint found the following cheapest return flights from Washington (IAD) to Prague (PRG) in January 2026 (see full year).
Return flights
| 24 Jan - 28 Jan | Scandinavian Airlines | ||
| 06 Jan - 31 Jan | Icelandair | ||
| 08 Jan - 22 Jan | Turkish Airlines | ||
| 16 Jan - 07 Feb | Frontier Airlines | ||
| 13 Jan - 07 Feb | Lufthansa | ||
| 05 Jan - 19 Jan | British Airways |
Also check the deals for one-way flights from Washington to Prague in January.
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