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UTH to KTM: distance & flight time
Udon Thani (Udon Thani Airport) → Kathmandu (Tribhuvan International Airport)
1,318 mi
2,122 km · 1,146 nm
3h 20m
estimated nonstop flight time
-1.2h
time difference · heading northwest
See live UTH→KTM fares Phone-only fares on this route — call free
Flight time details
1,318 miles nonstop takes roughly 3h 20m 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
- UTH — Udon Thani Airport · Udon Thani, 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 UTH
- VTE · Wattay International Airport44 mi away
- KKC · Khon Kaen Airport64 mi away
- LOE · Loei Airport70 mi away
- SNO · Sakon Nakhon Airport89 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 UTH from KTM?
The flight distance from Udon Thani (UTH) to Kathmandu (KTM) is 1,318 miles (2,122 km, 1,146 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UTH to KTM?
A nonstop flight takes about 3h 20m 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 Udon Thani and Kathmandu?
Kathmandu is 1.2 hours behind Udon Thani.
What is the cheapest way to fly from UTH to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UTH–KTM that never appear on search engines, with no booking fees.