AirHint found the following cheapest return flights from Philadelphia (PHL) to Athens (ATH) in April 2026 (see full year).

Return flights

01 Apr - 12 Apr	SWISS
05 Apr - 12 Apr	British Airways
06 Apr - 12 Apr	British Airways
02 Apr - 19 Apr	British Airways
03 Apr - 19 Apr	British Airways
04 Apr - 12 Apr	SWISS
01 Apr - 12 Apr	Finnair	direct
06 Apr - 12 Apr	Finnair	direct
04 Apr - 12 Apr	Finnair	direct
03 Apr - 19 Apr	Finnair	direct

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

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 Athens in April from $673

Return flights