AirHint found the following cheapest return flights from Washington (IAD) to Prague (PRG) in December 2026 (see full year).
Return flights
| 01 Dec - 08 Dec | Delta | ||
| 08 Dec - 19 Dec | Lufthansa | ||
| 01 Dec - 12 Dec | Air France | ||
| 27 Dec - 09 Jan | Air France | ||
| 26 Dec - 09 Jan | SWISS | ||
| 15 Dec - 26 Dec | Lufthansa |
Also check the deals for one-way flights from Washington to Prague in December.
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