Need help booking?
Unpublished phone-only deals available
ZTH to UNI: distance & flight time
Zakynthos (Zakynthos International Airport "Dionysios Solomos") → Union Island (Union Island International Airport)
5,271 mi
8,483 km · 4,581 nm
10h 48m
estimated nonstop flight time
-7h
time difference · heading west
See live ZTH→UNI fares Phone-only fares on this route — call free
Flight time details
5,271 miles nonstop takes roughly 10h 48m 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
- ZTH — Zakynthos International Airport "Dionysios Solomos" · Zakynthos, Greece
- 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 ZTH
- PYR · Andravida Air Base25 mi away
- EFL · Kefallinia Airport33 mi away
- GPA · Araxos Airport40 mi away
- AGQ · Agrinion Air Base64 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 ZTH from UNI?
The flight distance from Zakynthos (ZTH) to Union Island (UNI) is 5,271 miles (8,483 km, 4,581 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ZTH to UNI?
A nonstop flight takes about 10h 48m 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 Zakynthos and Union Island?
Union Island is 7 hours behind Zakynthos.
What is the cheapest way to fly from ZTH to UNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ZTH–UNI that never appear on search engines, with no booking fees.