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SOU to SIR: distance & flight time
Southampton (Southampton Airport) → Sion (Sion Airport)
514 mi
827 km · 446 nm
1h 35m
estimated nonstop flight time
+1h
time difference · heading southeast
See live SOU→SIR fares Phone-only fares on this route — call free
Flight time details
514 miles nonstop takes roughly 1h 35m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- SOU — Southampton Airport · Southampton, United Kingdom
- 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 SOU
- LGW · London Gatwick Airport52 mi away
- LHR · London Heathrow Airport53 mi away
- QLA · Lasham Airport22 mi away
- BBP · Bembridge Airport22 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 SOU from SIR?
The flight distance from Southampton (SOU) to Sion (SIR) is 514 miles (827 km, 446 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SOU to SIR?
A nonstop flight takes about 1h 35m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from SOU to SIR?
Nonstop service on SOU–SIR depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 35m nonstop estimate.
What is the time difference between Southampton and Sion?
Sion is 1 hour ahead of Southampton.
What is the cheapest way to fly from SOU to SIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SOU–SIR that never appear on search engines, with no booking fees.
Why are some SOU to SIR fares phone-only?
Consolidator contracts let us sell certain SOU–SIR tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.