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KEP to SIR: distance & flight time
Nepalgunj (Nepalgunj Airport) → Sion (Sion Airport)
4,123 mi
6,636 km · 3,583 nm
8h 33m
estimated nonstop flight time
-3.7h
time difference · heading northwest
See live KEP→SIR fares Phone-only fares on this route — call free
Flight time details
4,123 miles nonstop takes roughly 8h 33m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.7-hour time set-back when reading arrival times on your ticket.
The two airports
- KEP — Nepalgunj Airport · Nepalgunj, Nepal
- SIR — Sion Airport · Sion, Switzerland
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 KEP
- SKH · Surkhet Airport33 mi away
- DNP · Tulsipur Airport38 mi away
- RUK · Rukum Chaurjahari Airport48 mi away
- DHI · Dhangarhi Airport80 mi away
Near SIR
- AOT · Aosta Airport33 mi away
- QLS · Lausanne-Blécherette Airport41 mi away
- ZIN · Interlaken Air Base41 mi away
- MVV · Megève Airport43 mi away
Frequently asked questions
How far is KEP from SIR?
The flight distance from Nepalgunj (KEP) to Sion (SIR) is 4,123 miles (6,636 km, 3,583 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KEP to SIR?
A nonstop flight takes about 8h 33m 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 Nepalgunj and Sion?
Sion is 3.7 hours behind Nepalgunj.
What is the cheapest way to fly from KEP to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KEP–SIR that never appear on search engines, with no booking fees.