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USM to XSP: distance & flight time
Ko Samui (Samui Airport) → Singapore (Seletar Airport)
620 mi
997 km · 538 nm
1h 49m
estimated nonstop flight time
+1h
time difference · heading southeast
See live USM→XSP fares Phone-only fares on this route — call free
Flight time details
620 miles nonstop takes roughly 1h 49m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- XSP — Seletar Airport · Singapore, Singapore
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 XSP
- SIN · Singapore Changi Airport10 mi away
- QPG · Paya Lebar Air Base5 mi away
- TGA · Tengah Air Base11 mi away
- JHB · Senai International Airport21 mi away
Frequently asked questions
How far is USM from XSP?
The flight distance from Ko Samui (USM) to Singapore (XSP) is 620 miles (997 km, 538 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to XSP?
A nonstop flight takes about 1h 49m 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 Singapore?
Singapore is 1 hour ahead of Ko Samui.
What is the cheapest way to fly from USM to XSP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–XSP that never appear on search engines, with no booking fees.