AirHint found the following cheapest return flights from Philadelphia (PHL) to Prague (PRG) in August 2025 (see full year).

Return flights

11 Aug - 20 Aug	Air Canada
18 Aug - 25 Aug	Air Canada
04 Aug - 18 Aug	Air Canada
07 Aug - 21 Aug	Air Canada
25 Aug - 01 Sep	Air Canada
18 Aug - 01 Sep	Air Canada
21 Aug - 04 Sep	Air Canada
24 Aug - 31 Aug	Air Canada
28 Aug - 04 Sep	Condor

Also check the deals for one-way flights from Philadelphia to Prague in August.

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 Philadelphia to Prague in August from $590

Return flights