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DGL to USM: distance & flight time
Douglas (Douglas Municipal Airport) → Ko Samui (Samui Airport)
9,000 mi
14,484 km · 7,821 nm
18h 7m
estimated nonstop flight time
+14h
time difference · heading northwest
See live DGL→USM fares Phone-only fares on this route — call free
Flight time details
9,000 miles nonstop takes roughly 18h 7m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- DGL — Douglas Municipal Airport · Douglas, 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 DGL
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 DGL from USM?
The flight distance from Douglas (DGL) to Ko Samui (USM) is 9,000 miles (14,484 km, 7,821 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DGL to USM?
A nonstop flight takes about 18h 7m 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 Douglas and Ko Samui?
Ko Samui is 14 hours ahead of Douglas.
What is the cheapest way to fly from DGL to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DGL–USM that never appear on search engines, with no booking fees.