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SAY to UNI: distance & flight time
Siena (Siena-Ampugnano Airport) → Union Island (Union Island International Airport)
4,755 mi
7,653 km · 4,132 nm
9h 47m
estimated nonstop flight time
-6h
time difference · heading west
See live SAY→UNI fares Phone-only fares on this route — call free
Flight time details
4,755 miles nonstop takes roughly 9h 47m 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
- SAY — Siena-Ampugnano Airport · Siena, Italy
- 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 SAY
- GRS · Grosseto Air Base36 mi away
- FLR · Peretola Airport38 mi away
- PSA · Pisa International Airport52 mi away
- EBA · Marina Di Campo Airport62 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 SAY from UNI?
The flight distance from Siena (SAY) to Union Island (UNI) is 4,755 miles (7,653 km, 4,132 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SAY to UNI?
A nonstop flight takes about 9h 47m 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 Siena and Union Island?
Union Island is 6 hours behind Siena.
What is the cheapest way to fly from SAY to UNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SAY–UNI that never appear on search engines, with no booking fees.