AirHint found the following cheapest return flights from Seattle (SEA) to Shanghai (PVG) in January 2026 (see full year).
Return flights
| 02 Jan - 01 Feb | Korean Air | ||
| 02 Jan - 01 Feb | Delta | direct | |
| 04 Jan - 11 Jan | Japan Airlines | ||
| 03 Jan - 10 Jan | Hawaiian Airlines | ||
| 03 Jan - 10 Jan | Delta | direct |
Also check the deals for one-way flights from Seattle to Shanghai in January.
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