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USM to GIU: distance & flight time
Ko Samui (Samui Airport) → Sigiriya (Sigiriya Air Force Base)
1,325 mi
2,132 km · 1,151 nm
3h 21m
estimated nonstop flight time
-1.5h
time difference · heading west
See live USM→GIU fares Phone-only fares on this route — call free
Flight time details
1,325 miles nonstop takes roughly 3h 21m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1.5-hour time set-back when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- GIU — Sigiriya Air Force Base · Sigiriya, Sri Lanka
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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Near GIU
- HIM · Hingurakgoda Air Force Base18 mi away
- ACJ · Anuradhapura Air Force Base31 mi away
- TRR · China Bay Airport51 mi away
- BTC · Batticaloa Airport67 mi away
Frequently asked questions
How far is USM from GIU?
The flight distance from Ko Samui (USM) to Sigiriya (GIU) is 1,325 miles (2,132 km, 1,151 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to GIU?
A nonstop flight takes about 3h 21m 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 Ko Samui and Sigiriya?
Sigiriya is 1.5 hours behind Ko Samui.
What is the cheapest way to fly from USM to GIU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–GIU that never appear on search engines, with no booking fees.