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ASE to USM: distance & flight time
Aspen (Aspen-Pitkin Co/Sardy Field) → Ko Samui (Samui Airport)
8,649 mi
13,920 km · 7,516 nm
17h 26m
estimated nonstop flight time
+13h
time difference · heading northwest
See live ASE→USM fares Phone-only fares on this route — call free
Flight time details
8,649 miles nonstop takes roughly 17h 26m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- ASE — Aspen-Pitkin Co/Sardy Field · Aspen, 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 ASE
- EGE · Eagle County Regional Airport29 mi away
- GUC · Gunnison Crested Butte Regional Airport48 mi away
- RIL · Garfield County Regional Airport50 mi away
- MTJ · Montrose Regional Airport74 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 ASE from USM?
The flight distance from Aspen (ASE) to Ko Samui (USM) is 8,649 miles (13,920 km, 7,516 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASE to USM?
A nonstop flight takes about 17h 26m 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 Aspen and Ko Samui?
Ko Samui is 13 hours ahead of Aspen.
What is the cheapest way to fly from ASE to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASE–USM that never appear on search engines, with no booking fees.