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PSM to ACI: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Alderney (Alderney Airport)
3,186 mi
5,128 km · 2,769 nm
6h 43m
estimated nonstop flight time
+5h
time difference · heading northeast
See live PSM→ACI fares Phone-only fares on this route — call free
Flight time details
3,186 miles nonstop takes roughly 6h 43m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, 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 PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 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 PSM from ACI?
The flight distance from Portsmouth (PSM) to Alderney (ACI) is 3,186 miles (5,128 km, 2,769 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to ACI?
A nonstop flight takes about 6h 43m 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 Portsmouth and Alderney?
Alderney is 5 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to ACI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–ACI that never appear on search engines, with no booking fees.