Are there nonstop flights from Seattle (SEA) to Shanghai (PVG)?

Yes. Delta Air Lines fly this route. Flight time is about 11h 19m.

What is the fastest connection from Seattle (SEA) to Shanghai (PVG)?

via Seoul ≈ 11h 49m, via Vancouver ≈ 11h 50m, via Tokyo ≈ 12h 7m (estimated flying time, excluding layovers).

from 22,500 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Seattle–Tacoma International Airport (SEA) to Shanghai Pudong International Airport (PVG)・9,188 km

Nonstop flights available (1 airline). Flight time about 11h 19m. Nonstop return flights also operate.

With milesANA 22,500 miles+ (via HND)JAL 37,000 miles+ (via ICN)Economy, one way, estimate. Tap a connection for miles by cabin.

30 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.