Cheapest return flights from Phoenix to Lisbon in May from 736€

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

Return flights

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 - 26 May Allegiant Air
20 May - 02 Jun Frontier Airlines
20 May - 04 Jun Allegiant Air
21 May - 02 Jun Frontier Airlines
26 May - 31 May Delta

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

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