Cheapest return IAD–PRG flights, May

AirHint found the following cheapest return flights from Washington (IAD) to Prague (PRG) in May 2026 (see full year).

Return flights

09 May - 22 May Scandinavian Airlines
24 May - 07 Jun Porter Airlines (Canada) Ltd
10 May - 17 May Icelandair
05 May - 11 May Air France
06 May - 14 May Lufthansa
10 May - 30 May Icelandair
13 May - 18 May SWISS
08 May - 18 May TAP
24 May - 30 May Porter Airlines (Canada) Ltd
08 May - 17 May TAP
20 May - 26 May SWISS

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

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