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BIO to UNI: distance & flight time
Bilbao (Bilbao Airport) → Union Island (Union Island International Airport)
4,050 mi
6,518 km · 3,520 nm
8h 25m
estimated nonstop flight time
-6h
time difference · heading west
See live BIO→UNI fares Phone-only fares on this route — call free
Flight time details
4,050 miles nonstop takes roughly 8h 25m 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
- BIO — Bilbao Airport · Bilbao, Spain
- 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 BIO
- VIT · Vitoria/Foronda Airport30 mi away
- SDR · Santander Airport47 mi away
- EAS · San Sebastian Airport56 mi away
- RJL · Logroño-Agoncillo Airport65 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 BIO from UNI?
The flight distance from Bilbao (BIO) to Union Island (UNI) is 4,050 miles (6,518 km, 3,520 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BIO to UNI?
A nonstop flight takes about 8h 25m 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 Bilbao and Union Island?
Union Island is 6 hours behind Bilbao.
What is the cheapest way to fly from BIO to UNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BIO–UNI that never appear on search engines, with no booking fees.