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KTM to UBP: distance & flight time
Kathmandu (Tribhuvan International Airport) → Ubon Ratchathani (Ubon Ratchathani Airport)
1,517 mi
2,442 km · 1,318 nm
3h 26m
estimated nonstop flight time
+1.3h
time difference · heading southeast
See live KTM→UBP fares Phone-only fares on this route — call free
Flight time details
1,517 miles nonstop takes roughly 3h 26m 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
- UBP — Ubon Ratchathani Airport · Ubon Ratchathani, 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 UBP
- PKZ · Pakse International Airport61 mi away
- ZVK · Savannakhet Airport90 mi away
- ROI · Roi Et Airport94 mi away
- PXR · Surin Airport95 mi away
Frequently asked questions
How far is KTM from UBP?
The flight distance from Kathmandu (KTM) to Ubon Ratchathani (UBP) is 1,517 miles (2,442 km, 1,318 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KTM to UBP?
A nonstop flight takes about 3h 26m 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 Ubon Ratchathani?
Ubon Ratchathani is 1.3 hours ahead of Kathmandu.
What is the cheapest way to fly from KTM to UBP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KTM–UBP that never appear on search engines, with no booking fees.