AirHint found the following cheapest return flights from Seattle (SEA) to Rome (CIA) in May 2026 (see full year).
Return flights
| 09 May - 16 May | Icelandair | ||
| 16 May - 27 May | Icelandair | ||
| 13 May - 26 May | Aer Lingus | ||
| 23 May - 30 May | Icelandair | ||
| 20 May - 07 Jun | Aer Lingus | ||
| 26 May - 09 Jun | Icelandair | ||
| 29 May - 12 Jun | Aer Lingus |
Also check the deals for one-way flights from Seattle to Rome in May.
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