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KTM to NST: distance & flight time
Kathmandu (Tribhuvan International Airport) → Nakhon Si Thammarat (Nakhon Si Thammarat Airport)
1,630 mi
2,624 km · 1,417 nm
3h 40m
estimated nonstop flight time
+1.3h
time difference · heading southeast
See live KTM→NST fares Phone-only fares on this route — call free
Flight time details
1,630 miles nonstop takes roughly 3h 40m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1.3-hour time gain when reading arrival times on your ticket.
The two airports
- KTM — Tribhuvan International Airport · Kathmandu, Nepal
- NST — Nakhon Si Thammarat Airport · Nakhon Si Thammarat, Thailand
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 KTM
- SIF · Simara Airport44 mi away
- RHP · Ramechhap Airport48 mi away
- BHR · Bharatpur Airport57 mi away
- MEY · Meghauli Airport70 mi away
Near NST
- URT · Surat Thani Airport69 mi away
- USM · Samui Airport70 mi away
- KBV · Krabi Airport72 mi away
- TST · Trang Airport75 mi away
Frequently asked questions
How far is KTM from NST?
The flight distance from Kathmandu (KTM) to Nakhon Si Thammarat (NST) is 1,630 miles (2,624 km, 1,417 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KTM to NST?
A nonstop flight takes about 3h 40m 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 Kathmandu and Nakhon Si Thammarat?
Nakhon Si Thammarat is 1.3 hours ahead of Kathmandu.
What is the cheapest way to fly from KTM to NST?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KTM–NST that never appear on search engines, with no booking fees.