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

Return flights

14 Jan - 29 Jan	Korean Air
02 Jan - 24 Jan	Korean Air
10 Jan - 13 Feb	Asiana Airlines
23 Jan - 30 Jan	Korean Air
19 Jan - 26 Jan	Asiana Airlines
13 Jan - 15 Jan	Korean Air
06 Jan - 02 Feb	ANA
19 Jan - 26 Jan	Delta	direct
14 Jan - 29 Jan	Delta	direct
06 Jan - 02 Feb	Delta	direct
13 Jan - 15 Jan	Delta	direct
02 Jan - 24 Jan	Delta	direct
10 Jan - 13 Feb	Delta	direct

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

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 Seattle to Shanghai in January from 570€

Return flights