Cheapest one-way flights from Washington to Prague in December from $346

AirHint found the following cheapest one-way flights from Washington (IAD) to Prague (PRG) in December 2025 (see full year).

One-Way flights

11 Dec Frontier Airlines
28 Dec SWISS
15 Dec Frontier Airlines
23 Dec Air Canada
26 Dec Turkish Airlines

Also check the deals for return flights from Washington to Prague in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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