Are there nonstop flights from Philadelphia (PHL) to Bangkok (BKK)?

No. The fastest connection is via Copenhagen, about 18h 37m of total flying time.

What is the fastest connection from Philadelphia (PHL) to Bangkok (BKK)?

via Copenhagen ≈ 18h 37m, via Amsterdam ≈ 18h 53m, via London ≈ 18h 58m (estimated flying time, excluding layovers).

from 50,000 JAL miles (economy, one way, based on the published award charts).

Philadelphia International Airport (PHL) to Suvarnabhumi Airport (BKK)・14,046 km

No nonstop flights. The fastest connection is via Copenhagen (CPH), about 18h 37m of flying time (layover not included).

With milesJAL 50,000 miles+ (via DOH)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

11 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.