AirHint found the following cheapest return flights from Phoenix (PHX) to Lisbon (LIS) in May 2026 (see full year).
Return flights
| 13 May - 20 May | Air Canada | ||
| 19 May - 13 Jun | British Airways | ||
| 18 May - 13 Jun | British Airways | ||
| 12 May - 06 Jun | British Airways | ||
| 21 May - 13 Jun | Lufthansa | ||
| 20 May - 13 Jun | Lufthansa | ||
| 26 May - 18 Jun | United |
Also check the deals for one-way flights from Phoenix to Lisbon in May.
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