AirHint found the following cheapest return flights from Seattle (SEA) to Shanghai (PVG) in March 2026 (see full year).
Return flights
| 24 Mar - 31 Mar | Delta | direct | |
| 25 Mar - 02 Apr | Delta | direct | |
| 23 Mar - 31 Mar | Delta | direct | |
| 28 Mar - 12 Apr | Alaska Airlines | ||
| 25 Mar - 29 Mar | Delta | direct | |
| 28 Mar - 12 Apr | Delta | direct |
Also check the deals for one-way flights from Seattle to Shanghai in March.
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