Are there nonstop flights from Portland (PDX) to Taipei (TPE)?

No. The fastest connection is via Seattle, about 12h 44m of total flying time.

What is the fastest connection from Portland (PDX) to Taipei (TPE)?

via Seattle ≈ 12h 44m, via Vancouver ≈ 12h 45m, via San Francisco ≈ 14h 16m (estimated flying time, excluding layovers).

from 30,000 ANA miles (economy, one way, based on the published award charts).

Portland International Airport (PDX) to Taiwan Taoyuan International Airport (TPE)・9,860 km

No nonstop flights. The fastest connection is via Seattle (SEA), about 12h 44m of flying time (layover not included).

With milesANA 30,000 miles+ (via SFO)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

14 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.