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RDU to USM: distance & flight time
Raleigh-durham (Raleigh Durham International Airport) → Ko Samui (Samui Airport)
9,297 mi
14,963 km · 8,079 nm
18h 42m
estimated nonstop flight time
+11h
time difference · heading north
See live RDU→USM fares Phone-only fares on this route — call free
Flight time details
9,297 miles nonstop takes roughly 18h 42m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- RDU — Raleigh Durham International Airport · Raleigh-durham, United States
- 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 RDU
- POB · Pope Field50 mi away
- RWI · Rocky Mount Wilson Regional Airport50 mi away
- FBG · Simmons Army Air Field52 mi away
- SOP · Moore County Airport56 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 RDU from USM?
The flight distance from Raleigh-durham (RDU) to Ko Samui (USM) is 9,297 miles (14,963 km, 8,079 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RDU to USM?
A nonstop flight takes about 18h 42m 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 Raleigh-durham and Ko Samui?
Ko Samui is 11 hours ahead of Raleigh-durham.
What is the cheapest way to fly from RDU to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RDU–USM that never appear on search engines, with no booking fees.