Cheapest return flights from Phoenix to Lisbon in May from 687€

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

Return flights

09 May - 21 May Frontier Airlines
23 May - 31 May Frontier Airlines
28 May - 08 Jun WestJet
19 May - 02 Jun Frontier Airlines
19 May - 08 Jun Frontier Airlines
22 May - 02 Jun Frontier Airlines
25 May - 07 Jun Frontier Airlines
25 May - 02 Jun Frontier Airlines
03 May - 08 May Alaska Airlines
03 May - 07 May Alaska Airlines
20 May - 02 Jun Frontier Airlines
21 May - 02 Jun Frontier Airlines

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

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