Cheapest one-way flights from Seattle to Shanghai in September from 349€

AirHint found the following cheapest one-way flights from Seattle (SEA) to Shanghai (PVG) in September 2025 (see full year).

One-Way flights

19 Sep Alaska Airlines
10 Sep Philippine Airlines
25 Sep Air China
20 Sep Frontier Airlines
27 Sep WestJet
27 Sep Delta direct
10 Sep Delta direct
20 Sep Delta direct
25 Sep Delta direct
19 Sep Delta direct

Also check the deals for return flights from Seattle to Shanghai in September.

Skyscanner

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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