Direct (nonstop) flights from Kathmandu to Bangkok
2 airlines fly nonstop from Tribhuvan International (KTM) to Suvarnabhumi Airport (BKK). It's 1,383 miles (2,226 km), about 3h 30m in the air. Operated by Nepal Airlines, Thai Airways International.
Nepal Airlines
Thai Airways International
Route data last updated: May 31, 2026
Airlines with non-stop flights
RA
Nepal Airlines
TG
Thai Airways International
Alternative Routes
Other ways to fly from Kathmandu to Bangkok with one stop · direct emits 234 kg CO₂ per passenger
Looking for the return flight?
BKK → KTM: Flights from Bangkok to KathmanduOther direct flights from Kathmandu
Direct flights from Bangkok (BKK)
Frequently Asked Questions
How long is the direct flight from Kathmandu to Bangkok?
A nonstop flight from Kathmandu (KTM) to Bangkok (BKK) takes approximately 3 hours and 30 minutes. The distance is 1,383 miles (2,226 km).
Which airlines fly nonstop from Kathmandu to Bangkok?
2 airlines: Nepal Airlines, Thai Airways International.
Is there a nonstop flight from Kathmandu to Bangkok?
Yes. 2 airlines: Nepal Airlines, Thai Airways International.
How far is Kathmandu from Bangkok?
The flight distance from Kathmandu to Bangkok is 1,383 miles (2,226 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What is the time difference between Kathmandu and Bangkok?
Bangkok is 2 hours ahead of Kathmandu. (Asia/Kathmandu vs Asia/Bangkok.)
What type of aircraft flies from Kathmandu to Bangkok?
At 3h 30m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
Do I need a visa to travel from Nepal to Thailand?
Depends on your passport. Check with the Thailand embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Kathmandu to Bangkok?
Roughly 234 kg CO2 per passenger one-way. That's about the same as driving 1,170 km.
Is the return flight from Bangkok to Kathmandu also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Kathmandu to Bangkok?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Tribhuvan International for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.