A random check on a search engine shows 15hr 45min by Kuwait Airways.
Route BKK-KWI-FRA.
A flight from Frankfurt to Bangkok is 12 hours.
The flying time between Delhi and Bangkok is an estimated 4 hours and 20 minutes. The flying times will vary depending on the airline.
The flight distance from Bangkok, Thailand to Frankfurt, Germany is: 5,578 miles / 8,977 km
For direct flights, about 1 hour flying time.
The flight time from Frankfurt, Germany to Geneva, Switzerland is about 35 minutes.
The flight time from Frankfurt, Germany to London, United Kingdom is about 48 minutes.
The flight time from Bangkok, Thailand to Germany is about 11 hours, 6 minutes.
about an hour
About 6 hours.
3 hours
The flight time from Frankfurt, Germany to Athens, Greece is about 2 hours, 14 minutes.
The flight time from Detroit, Michigan to Bangkok, Thailand is about 17 hours, 8 minutes.