Need help booking?
Unpublished phone-only deals available
GKL to CAT: distance & flight time
Great Keppel Island (Great Keppel Is Airport) → Cascais (Cascais Airport)
10,857 mi
17,473 km · 9,435 nm
21h 45m
estimated nonstop flight time
-9h
time difference · heading northwest
See live GKL→CAT fares Phone-only fares on this route — call free
Flight time details
10,857 miles nonstop takes roughly 21h 45m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- GKL — Great Keppel Is Airport · Great Keppel Island, Australia
- 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 GKL
- ROK · Rockhampton Airport33 mi away
- GLT · Gladstone Airport51 mi away
- THG · Thangool Airport93 mi away
- TDR · Theodore Airport136 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 GKL from CAT?
The flight distance from Great Keppel Island (GKL) to Cascais (CAT) is 10,857 miles (17,473 km, 9,435 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GKL to CAT?
A nonstop flight takes about 21h 45m 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 Great Keppel Island and Cascais?
Cascais is 9 hours behind Great Keppel Island.
What is the cheapest way to fly from GKL to CAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GKL–CAT that never appear on search engines, with no booking fees.