Need help booking?
Unpublished phone-only deals available
THS to KTM: distance & flight time
Sukhothai (Sukhothai Airport) → Kathmandu (Tribhuvan International Airport)
1,171 mi
1,884 km · 1,017 nm
3h 1m
estimated nonstop flight time
-1.2h
time difference · heading northwest
See live THS→KTM fares Phone-only fares on this route — call free
Flight time details
1,171 miles nonstop takes roughly 3h 1m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1.2-hour time set-back when reading arrival times on your ticket.
The two airports
- THS — Sukhothai Airport · Sukhothai, Thailand
- KTM — Tribhuvan International Airport · Kathmandu, Nepal
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near THS
- PHS · Phitsanulok Airport44 mi away
- TKT · Tak Airport44 mi away
- PRH · Phrae Airport66 mi away
- LPT · Lampang Airport74 mi away
Near KTM
- SIF · Simara Airport44 mi away
- RHP · Ramechhap Airport48 mi away
- BHR · Bharatpur Airport57 mi away
- MEY · Meghauli Airport70 mi away
Frequently asked questions
How far is THS from KTM?
The flight distance from Sukhothai (THS) to Kathmandu (KTM) is 1,171 miles (1,884 km, 1,017 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THS to KTM?
A nonstop flight takes about 3h 1m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Sukhothai and Kathmandu?
Kathmandu is 1.2 hours behind Sukhothai.
What is the cheapest way to fly from THS to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THS–KTM that never appear on search engines, with no booking fees.