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ZTH to USM: distance & flight time
Zakynthos (Zakynthos International Airport "Dionysios Solomos") → Ko Samui (Samui Airport)
5,226 mi
8,411 km · 4,542 nm
10h 43m
estimated nonstop flight time
+4h
time difference · heading east
See live ZTH→USM fares Phone-only fares on this route — call free
Flight time details
5,226 miles nonstop takes roughly 10h 43m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time gain when reading arrival times on your ticket.
The two airports
- ZTH — Zakynthos International Airport "Dionysios Solomos" · Zakynthos, Greece
- USM — Samui Airport · Ko Samui, Thailand
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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Frequently asked questions
How far is ZTH from USM?
The flight distance from Zakynthos (ZTH) to Ko Samui (USM) is 5,226 miles (8,411 km, 4,542 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ZTH to USM?
A nonstop flight takes about 10h 43m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from ZTH to USM?
Nonstop service on ZTH–USM depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 10h 43m nonstop estimate.
What is the time difference between Zakynthos and Ko Samui?
Ko Samui is 4 hours ahead of Zakynthos.
What is the cheapest way to fly from ZTH to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ZTH–USM that never appear on search engines, with no booking fees.
Why are some ZTH to USM fares phone-only?
Consolidator contracts let us sell certain ZTH–USM tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.