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OSF to UNI: distance & flight time
Moscow (Ostafyevo International Airport) → Union Island (Union Island International Airport)
5,845 mi
9,407 km · 5,079 nm
11h 56m
estimated nonstop flight time
-7h
time difference · heading west
See live OSF→UNI fares Phone-only fares on this route — call free
Flight time details
5,845 miles nonstop takes roughly 11h 56m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- OSF — Ostafyevo International Airport · Moscow, Russia
- 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 OSF
- VKO · Vnukovo International Airport11 mi away
- DME · Domodedovo International Airport17 mi away
- BKA · Bykovo Airport23 mi away
- ZIA · Zhukovsky International Airport25 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 OSF from UNI?
The flight distance from Moscow (OSF) to Union Island (UNI) is 5,845 miles (9,407 km, 5,079 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSF to UNI?
A nonstop flight takes about 11h 56m 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 Moscow and Union Island?
Union Island is 7 hours behind Moscow.
What is the cheapest way to fly from OSF to UNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSF–UNI that never appear on search engines, with no booking fees.