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CAT to UNI: distance & flight time
Cascais (Cascais Airport) → Union Island (Union Island International Airport)
3,648 mi
5,871 km · 3,170 nm
7h 37m
estimated nonstop flight time
-5h
time difference · heading west
See live CAT→UNI fares Phone-only fares on this route — call free
Flight time details
3,648 miles nonstop takes roughly 7h 37m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- CAT — Cascais Airport · Cascais, Portugal
- UNI — Union Island International Airport · Union Island, Saint Vincent and the Grenadines
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 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
Near UNI
- CIW · Canouan Airport8 mi away
- MQS · Mustique Airport25 mi away
- BQU · J F Mitchell Airport29 mi away
- SVD · Argyle International Airport42 mi away
Frequently asked questions
How far is CAT from UNI?
The flight distance from Cascais (CAT) to Union Island (UNI) is 3,648 miles (5,871 km, 3,170 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CAT to UNI?
A nonstop flight takes about 7h 37m 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 Cascais and Union Island?
Union Island is 5 hours behind Cascais.
What is the cheapest way to fly from CAT to UNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CAT–UNI that never appear on search engines, with no booking fees.