Cheapest return flights from Seattle to Shanghai in May from $938

Best time to book flights for Seattle (SEA) to Shanghai (PVG) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Shanghai (PVG) in May 2025 (see full year).

Return flights

14 May - 21 May Air Canada
16 May - 02 Jun Air Canada
17 May - 20 May WestJet
13 May - 17 May Asiana Airlines
01 May - 14 May Japan Airlines
07 May - 11 May Asiana Airlines
01 May - 11 May Air Canada
05 May - 16 May Cathay Pacific
02 May - 05 May Asiana Airlines
26 May - 30 May Air Canada
01 May - 11 May Delta direct
26 May - 01 Jun ANA
15 May - 02 Jun Delta direct
26 May - 01 Jun Delta direct
16 May - 02 Jun Delta direct

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

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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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