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

Return flights

20 Aug - 26 Aug	Finnair	direct
10 Aug - 19 Aug	British Airways	direct
19 Aug - 26 Aug	United
13 Aug - 20 Aug	United
15 Aug - 22 Aug	United
06 Aug - 17 Aug	British Airways	direct
11 Aug - 18 Aug	Finnair	direct
21 Aug - 28 Aug	United
07 Aug - 14 Aug	United
25 Aug - 01 Sep	United
09 Aug - 16 Aug	United
27 Aug - 03 Sep	United
28 Aug - 01 Sep	Frontier Airlines
30 Aug - 06 Sep	United

Also check the deals for one-way flights from Philadelphia to Amsterdam 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 Amsterdam in August from 461€

Return flights