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OLS to KTM: distance & flight time
Nogales (Nogales International Airport) → Kathmandu (Tribhuvan International Airport)
8,215 mi
13,221 km · 7,139 nm
16h 35m
estimated nonstop flight time
+12.8h
time difference · heading north
See live OLS→KTM fares Phone-only fares on this route — call free
Flight time details
8,215 miles nonstop takes roughly 16h 35m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12.8-hour time gain when reading arrival times on your ticket.
The two airports
- OLS — Nogales International Airport · Nogales, 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 OLS
- NOG · Nogales International Airport15 mi away
- FHU · Sierra Vista Municipal Libby Army Air Field32 mi away
- TUS · Tucson International Airport49 mi away
- DMA · Davis Monthan Air Force Base52 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 OLS from KTM?
The flight distance from Nogales (OLS) to Kathmandu (KTM) is 8,215 miles (13,221 km, 7,139 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OLS to KTM?
A nonstop flight takes about 16h 35m 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 Nogales and Kathmandu?
Kathmandu is 12.8 hours ahead of Nogales.
What is the cheapest way to fly from OLS to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OLS–KTM that never appear on search engines, with no booking fees.