AirHint found the following cheapest return flights from Seattle (SEA) to Naples (NAP) in May 2026 (see full year).
Return flights
| 10 May - 17 May | Lufthansa | ||
| 19 May - 26 May | Aer Lingus | ||
| 20 May - 27 May | Icelandair | ||
| 28 May - 04 Jun | WestJet | ||
| 30 May - 29 Jun | WestJet | ||
| 29 May - 05 Jun | Icelandair |
Also check the deals for one-way flights from Seattle to Naples in May.
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