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SIF to USM: distance & flight time
Simara (Simara Airport) → Ko Samui (Samui Airport)
1,565 mi
2,518 km · 1,360 nm
3h 32m
estimated nonstop flight time
+1.3h
time difference · heading southeast
See live SIF→USM fares Phone-only fares on this route — call free
Flight time details
1,565 miles nonstop takes roughly 3h 32m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1.3-hour time gain when reading arrival times on your ticket.
The two airports
- SIF — Simara Airport · Simara, Nepal
- 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 SIF
- KTM · Tribhuvan International Airport44 mi away
- BHR · Bharatpur Airport49 mi away
- MEY · Meghauli Airport54 mi away
- JKR · Janakpur Airport66 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 SIF from USM?
The flight distance from Simara (SIF) to Ko Samui (USM) is 1,565 miles (2,518 km, 1,360 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIF to USM?
A nonstop flight takes about 3h 32m 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 Simara and Ko Samui?
Ko Samui is 1.3 hours ahead of Simara.
What is the cheapest way to fly from SIF to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIF–USM that never appear on search engines, with no booking fees.