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OST to UNI: distance & flight time
Ostend (Ostend-Bruges International Airport) → Union Island (Union Island International Airport)
4,435 mi
7,137 km · 3,854 nm
9h 10m
estimated nonstop flight time
-6h
time difference · heading west
See live OST→UNI fares Phone-only fares on this route — call free
Flight time details
4,435 miles nonstop takes roughly 9h 10m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- OST — Ostend-Bruges International Airport · Ostend, Belgium
- 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 OST
- KJK · Wevelgem Airport30 mi away
- HZB · Merville-Calonne Airport41 mi away
- CQF · Calais-Dunkerque Airport43 mi away
- LIL · Lille-Lesquin Airport45 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 OST from UNI?
The flight distance from Ostend (OST) to Union Island (UNI) is 4,435 miles (7,137 km, 3,854 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OST to UNI?
A nonstop flight takes about 9h 10m 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 Ostend and Union Island?
Union Island is 6 hours behind Ostend.
What is the cheapest way to fly from OST to UNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OST–UNI that never appear on search engines, with no booking fees.