Need help booking?
Unpublished phone-only deals available
LAM to KTM: distance & flight time
Los Alamos (Los Alamos Airport) → Kathmandu (Tribhuvan International Airport)
7,979 mi
12,841 km · 6,934 nm
16h 7m
estimated nonstop flight time
+11.8h
time difference · heading north
See live LAM→KTM fares Phone-only fares on this route — call free
Flight time details
7,979 miles nonstop takes roughly 16h 7m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11.8-hour time gain when reading arrival times on your ticket.
The two airports
- LAM — Los Alamos Airport · Los Alamos, United States
- 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 LAM
- SAF · Santa Fe Municipal Airport21 mi away
- TSM · Taos Regional Airport52 mi away
- ABQ · Albuquerque International Sunport61 mi away
- LVS · Las Vegas Municipal Airport65 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 LAM from KTM?
The flight distance from Los Alamos (LAM) to Kathmandu (KTM) is 7,979 miles (12,841 km, 6,934 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LAM to KTM?
A nonstop flight takes about 16h 7m 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 Los Alamos and Kathmandu?
Kathmandu is 11.8 hours ahead of Los Alamos.
What is the cheapest way to fly from LAM to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LAM–KTM that never appear on search engines, with no booking fees.