Direct (nonstop) flights from Bangkok to Kathmandu
2 airlines fly nonstop from Suvarnabhumi Airport (BKK) to Tribhuvan International (KTM). It's 1,383 miles (2,226 km), about 3h 25m in the air. Operated by Nepal Airlines, Thai Airways International.
Nepal Airlines
Thai Airways International
Route data last updated: May 27, 2026
Airlines with non-stop flights
RA
Nepal Airlines
TG
Thai Airways International
Alternative Routes
Other ways to fly from Bangkok to Kathmandu with one stop · direct emits 234 kg CO₂ per passenger
Looking for the return flight?
KTM → BKK: Flights from Kathmandu to BangkokOther direct flights from Bangkok
Direct flights from Kathmandu (KTM)
Frequently Asked Questions
How long is the direct flight from Bangkok to Kathmandu?
A nonstop flight from Bangkok (BKK) to Kathmandu (KTM) takes approximately 3 hours and 25 minutes. The distance is 1,383 miles (2,226 km).
Which airlines fly nonstop from Bangkok to Kathmandu?
2 airlines: Nepal Airlines, Thai Airways International.
Is there a nonstop flight from Bangkok to Kathmandu?
Yes. 2 airlines: Nepal Airlines, Thai Airways International.
How far is Bangkok from Kathmandu?
The flight distance from Bangkok to Kathmandu 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 Bangkok and Kathmandu?
Kathmandu is 2 hours behind Bangkok. (Asia/Bangkok vs Asia/Kathmandu.)
What type of aircraft flies from Bangkok to Kathmandu?
At 3h 25m, 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 Thailand to Nepal?
Depends on your passport. Check with the Nepal embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Bangkok to Kathmandu?
Roughly 234 kg CO2 per passenger one-way. That's about the same as driving 1,170 km.
Is the return flight from Kathmandu to Bangkok 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 Bangkok to Kathmandu?
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 Suvarnabhumi Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.