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KTM to SSN: distance & flight time
Kathmandu (Tribhuvan International Airport) → Seoul East (Seoul Air Base (K-16))
2,501 mi
4,025 km · 2,173 nm
5h 22m
estimated nonstop flight time
+3.3h
time difference · heading northeast
See live KTM→SSN fares Phone-only fares on this route — call free
Flight time details
2,501 miles nonstop takes roughly 5h 22m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.3-hour time gain when reading arrival times on your ticket.
The two airports
- KTM — Tribhuvan International Airport · Kathmandu, Nepal
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
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 KTM
- SIF · Simara Airport44 mi away
- RHP · Ramechhap Airport48 mi away
- BHR · Bharatpur Airport57 mi away
- MEY · Meghauli Airport70 mi away
Near SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 mi away
Frequently asked questions
How far is KTM from SSN?
The flight distance from Kathmandu (KTM) to Seoul East (SSN) is 2,501 miles (4,025 km, 2,173 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KTM to SSN?
A nonstop flight takes about 5h 22m 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 Kathmandu and Seoul East?
Seoul East is 3.3 hours ahead of Kathmandu.
What is the cheapest way to fly from KTM to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KTM–SSN that never appear on search engines, with no booking fees.