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

Return flights

07 Oct - 01 Nov	Icelandair
23 Oct - 03 Nov	Icelandair
23 Oct - 30 Oct	Scandinavian Airlines
14 Oct - 21 Oct	TAP
17 Oct - 08 Nov	Scandinavian Airlines
09 Oct - 23 Oct	Scandinavian Airlines
09 Oct - 16 Oct	Scandinavian Airlines
19 Oct - 02 Nov	TAP
12 Oct - 17 Oct	Aer Lingus
20 Oct - 15 Nov	Scandinavian Airlines
17 Oct - 24 Oct	Scandinavian Airlines
15 Oct - 20 Oct	Turkish Airlines
09 Oct - 01 Nov	Scandinavian Airlines
22 Oct - 25 Oct	Scandinavian Airlines
01 Oct - 13 Oct	Air France
17 Oct - 19 Oct	Turkish Airlines

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

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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Cheapest return flights from Washington to Prague in October from $402

Return flights