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ISA to KTM: distance & flight time
Mount Isa (Mount Isa Airport) → Kathmandu (Tribhuvan International Airport)
4,923 mi
7,923 km · 4,278 nm
10h 7m
estimated nonstop flight time
-4.2h
time difference · heading northwest
See live ISA→KTM fares Phone-only fares on this route — call free
Flight time details
4,923 miles nonstop takes roughly 10h 7m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4.2-hour time set-back when reading arrival times on your ticket.
The two airports
- ISA — Mount Isa Airport · Mount Isa, Australia
- 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 ISA
- CNJ · Cloncurry Airport66 mi away
- JCK · Julia Creek Airport144 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 ISA from KTM?
The flight distance from Mount Isa (ISA) to Kathmandu (KTM) is 4,923 miles (7,923 km, 4,278 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISA to KTM?
A nonstop flight takes about 10h 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 Mount Isa and Kathmandu?
Kathmandu is 4.2 hours behind Mount Isa.
What is the cheapest way to fly from ISA to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISA–KTM that never appear on search engines, with no booking fees.