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SDM to UNI: distance & flight time
San Diego (Brown Field Municipal Airport) → Union Island (Union Island International Airport)
3,757 mi
6,046 km · 3,265 nm
7h 50m
estimated nonstop flight time
+3h
time difference · heading east
See live SDM→UNI fares Phone-only fares on this route — call free
Flight time details
3,757 miles nonstop takes roughly 7h 50m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- SDM — Brown Field Municipal Airport · San Diego, United States
- 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 SDM
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 SDM from UNI?
The flight distance from San Diego (SDM) to Union Island (UNI) is 3,757 miles (6,046 km, 3,265 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDM to UNI?
A nonstop flight takes about 7h 50m 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 San Diego and Union Island?
Union Island is 3 hours ahead of San Diego.
What is the cheapest way to fly from SDM to UNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDM–UNI that never appear on search engines, with no booking fees.