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SSN to SIR: distance & flight time
Seoul East (Seoul Air Base (K-16)) → Sion (Sion Airport)
5,558 mi
8,944 km · 4,830 nm
11h 22m
estimated nonstop flight time
-7h
time difference · heading northwest
See live SSN→SIR fares Phone-only fares on this route — call free
Flight time details
5,558 miles nonstop takes roughly 11h 22m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
- 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 SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 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 SSN from SIR?
The flight distance from Seoul East (SSN) to Sion (SIR) is 5,558 miles (8,944 km, 4,830 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SSN to SIR?
A nonstop flight takes about 11h 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 Seoul East and Sion?
Sion is 7 hours behind Seoul East.
What is the cheapest way to fly from SSN to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SSN–SIR that never appear on search engines, with no booking fees.