AirHint found the following cheapest return flights from Shanghai (SHA) to Seattle (SEA) in May 2026 (see full year).
Return flights
| 08 May - 15 May | Asiana Airlines | ||
| 14 May - 23 May | Asiana Airlines | ||
| 14 May - 23 May | Delta | direct | |
| 01 May - 10 May | Delta | direct | |
| 08 May - 15 May | Delta | direct |
Also check the deals for one-way flights from Shanghai to Seattle in May.
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