Cheapest return flights from Philadelphia to Athens in May from $686

Best time to book flights for Philadelphia (PHL) to Athens (ATH) flights at AirHint

AirHint found the following cheapest return flights from Philadelphia (PHL) to Athens (ATH) in May 2025 (see full year).

Return flights

11 May - 14 May Frontier Airlines
05 May - 19 May Frontier Airlines
04 May - 19 May Frontier Airlines
08 May - 16 May Frontier Airlines
06 May - 13 May United
09 May - 23 May Frontier Airlines
11 May - 18 May United
16 May - 23 May United
10 May - 17 May United
21 May - 28 May United
23 May - 01 Jun Air Canada
26 May - 02 Jun United
31 May - 07 Jun United

Also check the deals for one-way flights from Philadelphia to Athens in May.

Skyscanner

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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