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SDY to ACI: distance & flight time
Sidney (Sidney - Richland Regional Airport) → Alderney (Alderney Airport)
4,264 mi
6,862 km · 3,705 nm
8h 50m
estimated nonstop flight time
+7h
time difference · heading northeast
See live SDY→ACI fares Phone-only fares on this route — call free
Flight time details
4,264 miles nonstop takes roughly 8h 50m 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
- SDY — Sidney - Richland Regional Airport · Sidney, United States
- 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 SDY
- ISN · Sloulin Field International Airport41 mi away
- GDV · Dawson Community Airport49 mi away
- OLF · L M Clayton Airport69 mi away
- DIK · Dickinson Theodore Roosevelt Regional Airport91 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 SDY from ACI?
The flight distance from Sidney (SDY) to Alderney (ACI) is 4,264 miles (6,862 km, 3,705 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDY to ACI?
A nonstop flight takes about 8h 50m 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 Sidney and Alderney?
Alderney is 7 hours ahead of Sidney.
What is the cheapest way to fly from SDY to ACI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDY–ACI that never appear on search engines, with no booking fees.