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SIR to STN: distance & flight time
Sion (Sion Airport) → London (London Stansted Airport)
506 mi
814 km · 440 nm
1h 34m
estimated nonstop flight time
-1h
time difference · heading northwest
See live SIR→STN fares Phone-only fares on this route — call free
Flight time details
506 miles nonstop takes roughly 1h 34m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- STN — London Stansted Airport · London, United Kingdom
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 STN
- LHR · London Heathrow Airport41 mi away
- LGW · London Gatwick Airport54 mi away
- QFO · Duxford Aerodrome15 mi away
- CBG · Cambridge Airport22 mi away
Frequently asked questions
How far is SIR from STN?
The flight distance from Sion (SIR) to London (STN) is 506 miles (814 km, 440 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to STN?
A nonstop flight takes about 1h 34m 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 London?
London is 1 hour behind Sion.
What is the cheapest way to fly from SIR to STN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–STN that never appear on search engines, with no booking fees.