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

One-Way flights

13 Oct	Alaska Airlines
14 Oct	Alaska Airlines
11 Oct	Alaska Airlines
08 Oct	Alaska Airlines
13 Oct	Delta	direct
15 Oct	Delta	direct
14 Oct	Delta	direct
09 Oct	Delta	direct
10 Oct	Delta	direct
06 Oct	Delta	direct

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

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 one-way flights from Seattle to Shanghai in October from $411

One-Way flights