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THR to KTM: distance & flight time
Teheran (Mehrabad International Airport) → Kathmandu (Tribhuvan International Airport)
2,065 mi
3,323 km · 1,794 nm
4h 31m
estimated nonstop flight time
+2.3h
time difference · heading east
See live THR→KTM fares Phone-only fares on this route — call free
Flight time details
2,065 miles nonstop takes roughly 4h 31m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2.3-hour time gain when reading arrival times on your ticket.
The two airports
- THR — Mehrabad International Airport · Teheran, Iran
- 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 THR
- IKA · Imam Khomeini International Airport21 mi away
- PYK · Payam International Airport28 mi away
- NSH · Noshahr Airport68 mi away
- GZW · Qazvin Airport80 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 THR from KTM?
The flight distance from Teheran (THR) to Kathmandu (KTM) is 2,065 miles (3,323 km, 1,794 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THR to KTM?
A nonstop flight takes about 4h 31m 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 Teheran and Kathmandu?
Kathmandu is 2.3 hours ahead of Teheran.
What is the cheapest way to fly from THR to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THR–KTM that never appear on search engines, with no booking fees.