Are there nonstop flights from Bangkok (BKK) to Boston (BOS)?

No. The fastest connection is via Beijing, about 17h 37m of total flying time.

What is the fastest connection from Bangkok (BKK) to Boston (BOS)?

via Beijing ≈ 17h 37m, via Hong Kong ≈ 18h 3m, via Copenhagen ≈ 18h 6m (estimated flying time, excluding layovers).

from 40,000 ANA miles, from 47,000 JAL miles (economy, one way, based on the published award charts).

Suvarnabhumi Airport (BKK) to Boston Logan International Airport (BOS)・13,727 km

No nonstop flights. The fastest connection is via Beijing (PEK), about 17h 37m of flying time (layover not included).

With milesANA 40,000 miles+ (via FRA)JAL 47,000 miles+ (via HKG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

23 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.