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DEF to KTM: distance & flight time
Dezful (Dezful Airport) → Kathmandu (Tribhuvan International Airport)
2,223 mi
3,578 km · 1,932 nm
4h 50m
estimated nonstop flight time
+2.3h
time difference · heading east
See live DEF→KTM fares Phone-only fares on this route — call free
Flight time details
2,223 miles nonstop takes roughly 4h 50m 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
- DEF — Dezful Airport · Dezful, 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 DEF
- KHD · Khoram Abad Airport69 mi away
- AWZ · Ahwaz Airport79 mi away
- OMI · Omidiyeh Airport129 mi away
- MRX · Mahshahr Airport137 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 DEF from KTM?
The flight distance from Dezful (DEF) to Kathmandu (KTM) is 2,223 miles (3,578 km, 1,932 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEF to KTM?
A nonstop flight takes about 4h 50m 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 Dezful and Kathmandu?
Kathmandu is 2.3 hours ahead of Dezful.
What is the cheapest way to fly from DEF to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEF–KTM that never appear on search engines, with no booking fees.