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DRT to USM: distance & flight time
Del Rio (Del Rio International Airport) → Ko Samui (Samui Airport)
9,406 mi
15,138 km · 8,174 nm
18h 55m
estimated nonstop flight time
+12h
time difference · heading northwest
See live DRT→USM fares Phone-only fares on this route — call free
Flight time details
9,406 miles nonstop takes roughly 18h 55m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- DRT — Del Rio International Airport · Del Rio, 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 DRT
- DLF · DLF Airport9 mi away
- ACN · Ciudad Acuña New International Airport11 mi away
- PDS · Piedras Negras International Airport57 mi away
- UVA · Garner Field72 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 DRT from USM?
The flight distance from Del Rio (DRT) to Ko Samui (USM) is 9,406 miles (15,138 km, 8,174 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DRT to USM?
A nonstop flight takes about 18h 55m 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 Del Rio and Ko Samui?
Ko Samui is 12 hours ahead of Del Rio.
What is the cheapest way to fly from DRT to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DRT–USM that never appear on search engines, with no booking fees.