Cheapest return flights from Philadelphia to Lisbon in October from $531

Best time to book flights for Philadelphia (PHL) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest return flights from Philadelphia (PHL) to Lisbon (LIS) in October 2025 (see full year).

Return flights

14 Oct - 21 Oct Finnair
08 Oct - 16 Oct Delta
08 Oct - 13 Oct British Airways
06 Oct - 13 Oct British Airways
16 Oct - 23 Oct British Airways
16 Oct - 26 Oct British Airways
26 Oct - 02 Nov United
01 Oct - 08 Oct United
06 Oct - 08 Oct Finnair
08 Oct - 13 Oct American Airlines direct
25 Oct - 30 Oct TAP

Also check the deals for one-way flights from Philadelphia to Lisbon in October.

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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