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KHK to USM: distance & flight time
Khark Island (Khark Island Airport) → Ko Samui (Samui Airport)
3,484 mi
5,607 km · 3,028 nm
7h 18m
estimated nonstop flight time
+3.5h
time difference · heading east
See live KHK→USM fares Phone-only fares on this route — call free
Flight time details
3,484 miles nonstop takes roughly 7h 18m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.5-hour time gain when reading arrival times on your ticket.
The two airports
- KHK — Khark Island Airport · Khark Island, Iran
- 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 KHK
- BUZ · Bushehr Airport38 mi away
- GCH · Gachsaran Airport80 mi away
- AKW · Aghajari Airport110 mi away
- MRX · Mahshahr Airport114 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 KHK from USM?
The flight distance from Khark Island (KHK) to Ko Samui (USM) is 3,484 miles (5,607 km, 3,028 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KHK to USM?
A nonstop flight takes about 7h 18m 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 KHK to USM?
Nonstop service on KHK–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 7h 18m nonstop estimate.
What is the time difference between Khark Island and Ko Samui?
Ko Samui is 3.5 hours ahead of Khark Island.
What is the cheapest way to fly from KHK to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KHK–USM that never appear on search engines, with no booking fees.
Why are some KHK to USM fares phone-only?
Consolidator contracts let us sell certain KHK–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.