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OIR to KTM: distance & flight time
Okushiri (Okushiri Airport) → Kathmandu (Tribhuvan International Airport)
3,165 mi
5,094 km · 2,750 nm
6h 40m
estimated nonstop flight time
-3.2h
time difference · heading west
See live OIR→KTM fares Phone-only fares on this route — call free
Flight time details
3,165 miles nonstop takes roughly 6h 40m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.2-hour time set-back when reading arrival times on your ticket.
The two airports
- OIR — Okushiri Airport · Okushiri, Japan
- 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 OIR
- HKD · Hakodate Airport74 mi away
- AOJ · Aomori Airport113 mi away
- OKD · Okadama Airport123 mi away
- CTS · New Chitose Airport125 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 OIR from KTM?
The flight distance from Okushiri (OIR) to Kathmandu (KTM) is 3,165 miles (5,094 km, 2,750 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OIR to KTM?
A nonstop flight takes about 6h 40m 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 Okushiri and Kathmandu?
Kathmandu is 3.2 hours behind Okushiri.
What is the cheapest way to fly from OIR to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OIR–KTM that never appear on search engines, with no booking fees.