AirHint found the following cheapest return flights from Shanghai (SHA) to Seattle (SEA) in March 2026 (see full year).

Return flights

04 Mar - 12 Mar	Hainan Airlines
23 Mar - 30 Mar	Asiana Airlines
22 Mar - 29 Mar	Asiana Airlines
23 Mar - 27 Apr	Asiana Airlines
26 Mar - 29 Mar	Korean Air
23 Mar - 30 Mar	Delta	direct
26 Mar - 29 Mar	Delta	direct
04 Mar - 12 Mar	Delta	direct
22 Mar - 29 Mar	Delta	direct
07 Mar - 05 Apr	Delta	direct
23 Mar - 27 Apr	Delta	direct
11 Mar - 20 Mar	Hainan Airlines
11 Mar - 20 Mar	Delta	direct

Also check the deals for one-way flights from Shanghai to Seattle in March.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Shanghai to Seattle in March from 589€

Return flights