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SIR to SSN: distance & flight time
Sion (Sion Airport) → Seoul East (Seoul Air Base (K-16))
5,558 mi
8,944 km · 4,830 nm
11h 22m
estimated nonstop flight time
+7h
time difference · heading northeast
See live SIR→SSN fares Phone-only fares on this route — call free
Flight time details
5,558 miles nonstop takes roughly 11h 22m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- 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 SIR
- AOT · Aosta Airport33 mi away
- QLS · Lausanne-Blécherette Airport41 mi away
- ZIN · Interlaken Air Base41 mi away
- MVV · Megève Airport43 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 SIR from SSN?
The flight distance from Sion (SIR) to Seoul East (SSN) 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 SIR to SSN?
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 Sion and Seoul East?
Seoul East is 7 hours ahead of Sion.
What is the cheapest way to fly from SIR to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–SSN that never appear on search engines, with no booking fees.