Cheapest return flights from Washington to Prague in December from 400€

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

Return flights

05 Dec - 13 Dec Icelandair
07 Dec - 13 Dec Icelandair
04 Dec - 10 Dec SWISS
04 Dec - 11 Dec SWISS
27 Dec - 17 Jan Austrian Airlines
13 Dec - 13 Jan Delta
10 Dec - 24 Dec Air France
07 Dec - 14 Dec SWISS
15 Dec - 23 Dec SWISS
04 Dec - 09 Dec Lufthansa
26 Dec - 17 Jan KLM
14 Dec - 11 Jan United
14 Dec - 21 Dec British Airways
05 Dec - 27 Dec SWISS
23 Dec - 07 Jan British Airways
27 Dec - 05 Jan British Airways
10 Dec - 03 Jan TAP
13 Dec - 03 Jan Frontier Airlines
29 Dec - 01 Jan SWISS
29 Dec - 02 Jan Turkish Airlines

Also check the deals for one-way flights from Washington to Prague in December.

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