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ACI to CAT: distance & flight time
Alderney (Alderney Airport) → Cascais (Cascais Airport)
836 mi
1,346 km · 727 nm
2h 17m
estimated nonstop flight time
Same time
time difference · heading southwest
See live ACI→CAT fares Phone-only fares on this route — call free
Flight time details
836 miles nonstop takes roughly 2h 17m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ACI — Alderney Airport · Alderney, Guernsey
- CAT — Cascais Airport · Cascais, Portugal
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 CAT
- LIS · Humberto Delgado Airport (Lisbon Portela Airport)12 mi away
- AVR · Alverca Air Base21 mi away
- QLR · Monte Real Air Base80 mi away
- BYJ · Beja Airport / Airbase89 mi away
Frequently asked questions
How far is ACI from CAT?
The flight distance from Alderney (ACI) to Cascais (CAT) is 836 miles (1,346 km, 727 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ACI to CAT?
A nonstop flight takes about 2h 17m 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 cheapest way to fly from ACI to CAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ACI–CAT that never appear on search engines, with no booking fees.