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SIR to ACI: distance & flight time
Sion (Sion Airport) → Alderney (Alderney Airport)
502 mi
808 km · 437 nm
1h 34m
estimated nonstop flight time
-1h
time difference · heading northwest
See live SIR→ACI fares Phone-only fares on this route — call free
Flight time details
502 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
- ACI — Alderney Airport · Alderney, Guernsey
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 ACI
- GCI · Guernsey Airport26 mi away
- JER · Jersey Airport34 mi away
- CER · Cherbourg-Maupertus Airport34 mi away
- GFR · Granville Airport64 mi away
Frequently asked questions
How far is SIR from ACI?
The flight distance from Sion (SIR) to Alderney (ACI) is 502 miles (808 km, 437 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to ACI?
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 Alderney?
Alderney is 1 hour behind Sion.
What is the cheapest way to fly from SIR to ACI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–ACI that never appear on search engines, with no booking fees.