Are there nonstop flights from Basel / Mulhouse (BSL) to Bangkok (BKK)?

No. The fastest connection is via Munich, about 11h 44m of total flying time.

What is the fastest connection from Basel / Mulhouse (BSL) to Bangkok (BKK)?

via Munich ≈ 11h 44m, via Vienna ≈ 11h 45m, via Warsaw ≈ 11h 50m (estimated flying time, excluding layovers).

from 29,500 ANA miles, from 45,000 JAL miles (economy, one way, based on the published award charts).

EuroAirport Basel–Mulhouse–Freiburg (BSL) to Suvarnabhumi Airport (BKK)・9,127 km

No nonstop flights. The fastest connection is via Munich (MUC), about 11h 44m of flying time (layover not included).

With milesANA 29,500 miles+ (via MUC)JAL 45,000 miles+ (via CDG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

18 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.