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KOP to KTM: distance & flight time
Nakhon Phanom (Nakhon Phanom Airport) → Kathmandu (Tribhuvan International Airport)
1,419 mi
2,284 km · 1,233 nm
3h 33m
estimated nonstop flight time
-1.2h
time difference · heading northwest
See live KOP→KTM fares Phone-only fares on this route — call free
Flight time details
1,419 miles nonstop takes roughly 3h 33m 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
- KOP — Nakhon Phanom Airport · Nakhon Phanom, 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 KOP
- SNO · Sakon Nakhon Airport37 mi away
- ZVK · Savannakhet Airport58 mi away
- ROI · Roi Et Airport105 mi away
- VII · Vinh Airport115 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 KOP from KTM?
The flight distance from Nakhon Phanom (KOP) to Kathmandu (KTM) is 1,419 miles (2,284 km, 1,233 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOP to KTM?
A nonstop flight takes about 3h 33m 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 Nakhon Phanom and Kathmandu?
Kathmandu is 1.2 hours behind Nakhon Phanom.
What is the cheapest way to fly from KOP to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOP–KTM that never appear on search engines, with no booking fees.