Are there nonstop flights from Bangkok (BKK) to San Francisco (SFO)?

No. The fastest connection is via Wuhan, about 16h of total flying time.

What is the fastest connection from Bangkok (BKK) to San Francisco (SFO)?

via Wuhan ≈ 16h, via Seoul ≈ 16h, via Shanghai ≈ 16h 1m (estimated flying time, excluding layovers).

from 27,500 ANA miles, from 45,000 JAL miles (economy, one way, based on the published award charts).

Suvarnabhumi Airport (BKK) to San Francisco International Airport (SFO)・12,751 km

No nonstop flights. The fastest connection is via Wuhan (WUH), about 16h of flying time (layover not included).

With milesANA 27,500 miles+ (via NRT)JAL 45,000 miles+ (via ICN)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

33 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.