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GLS to CAT: distance & flight time
Galveston (Scholes International At Galveston Airport) → Cascais (Cascais Airport)
4,764 mi
7,667 km · 4,140 nm
9h 48m
estimated nonstop flight time
+6h
time difference · heading northeast
See live GLS→CAT fares Phone-only fares on this route — call free
Flight time details
4,764 miles nonstop takes roughly 9h 48m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- GLS — Scholes International At Galveston Airport · Galveston, United States
- 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 GLS
- IAH · George Bush Intercontinental Houston Airport57 mi away
- EFD · Ellington Airport30 mi away
- HOU · William P Hobby Airport36 mi away
- LJN · Texas Gulf Coast Regional Airport38 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 GLS from CAT?
The flight distance from Galveston (GLS) to Cascais (CAT) is 4,764 miles (7,667 km, 4,140 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GLS to CAT?
A nonstop flight takes about 9h 48m 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 Galveston and Cascais?
Cascais is 6 hours ahead of Galveston.
What is the cheapest way to fly from GLS to CAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GLS–CAT that never appear on search engines, with no booking fees.