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SDR to UNI: distance & flight time
Santander (Santander Airport) → Union Island (Union Island International Airport)
4,008 mi
6,450 km · 3,483 nm
8h 20m
estimated nonstop flight time
-6h
time difference · heading west
See live SDR→UNI fares Phone-only fares on this route — call free
Flight time details
4,008 miles nonstop takes roughly 8h 20m 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
- SDR — Santander Airport · Santander, 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 SDR
- BIO · Bilbao Airport47 mi away
- VIT · Vitoria/Foronda Airport67 mi away
- RGS · Burgos Airport75 mi away
- RJL · Logroño-Agoncillo Airport101 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 SDR from UNI?
The flight distance from Santander (SDR) to Union Island (UNI) is 4,008 miles (6,450 km, 3,483 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDR to UNI?
A nonstop flight takes about 8h 20m 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 Santander and Union Island?
Union Island is 6 hours behind Santander.
What is the cheapest way to fly from SDR to UNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDR–UNI that never appear on search engines, with no booking fees.