Cheapest return flights from Philadelphia to Lisbon in May from $703

AirHint found the following cheapest return flights from Philadelphia (PHL) to Lisbon (LIS) in May 2026 (see full year).

Return flights

13 May - 22 May TAP
14 May - 24 May TAP
19 May - 02 Jun TAP
16 May - 25 May TAP
22 May - 05 Jun TAP
15 May - 24 May TAP
13 May - 22 May Iberia direct
14 May - 24 May Iberia direct
15 May - 24 May Iberia direct
19 May - 02 Jun Iberia direct
16 May - 25 May Iberia direct
22 May - 05 Jun Iberia direct

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

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