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ACI to CPR: distance & flight time
Alderney (Alderney Airport) → Casper (Casper-Natrona County International Airport)
4,578 mi
7,367 km · 3,978 nm
9h 27m
estimated nonstop flight time
-7h
time difference · heading northwest
See live ACI→CPR fares Phone-only fares on this route — call free
Flight time details
4,578 miles nonstop takes roughly 9h 27m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- ACI — Alderney Airport · Alderney, Guernsey
- CPR — Casper-Natrona County International Airport · Casper, United States
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 ACI
- GCI · Guernsey Airport26 mi away
- JER · Jersey Airport34 mi away
- CER · Cherbourg-Maupertus Airport34 mi away
- GFR · Granville Airport64 mi away
Near CPR
- RWL · Rawlins Municipal Airport/Harvey Field85 mi away
- RIW · Riverton Regional Airport101 mi away
- SAA · Shively Field103 mi away
- WRL · Worland Municipal Airport104 mi away
Frequently asked questions
How far is ACI from CPR?
The flight distance from Alderney (ACI) to Casper (CPR) is 4,578 miles (7,367 km, 3,978 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ACI to CPR?
A nonstop flight takes about 9h 27m 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 Alderney and Casper?
Casper is 7 hours behind Alderney.
What is the cheapest way to fly from ACI to CPR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ACI–CPR that never appear on search engines, with no booking fees.