Need help booking?
Unpublished phone-only deals available
USM to GUS: distance & flight time
Ko Samui (Samui Airport) → Peru (Grissom Air Reserve Base)
8,946 mi
14,397 km · 7,774 nm
18h
estimated nonstop flight time
-12h
time difference · heading north
See live USM→GUS fares Phone-only fares on this route — call free
Flight time details
8,946 miles nonstop takes roughly 18h gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- GUS — Grissom Air Reserve Base · Peru, United States
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 GUS
- OKK · Kokomo Municipal Airport10 mi away
- LAF · Purdue University Airport44 mi away
- AID · Anderson Municipal Darlington Field47 mi away
- MIE · Delaware County Johnson Field49 mi away
Frequently asked questions
How far is USM from GUS?
The flight distance from Ko Samui (USM) to Peru (GUS) is 8,946 miles (14,397 km, 7,774 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to GUS?
A nonstop flight takes about 18h gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from USM to GUS?
Nonstop service on USM–GUS depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 18h nonstop estimate.
What is the time difference between Ko Samui and Peru?
Peru is 12 hours behind Ko Samui.
What is the cheapest way to fly from USM to GUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–GUS that never appear on search engines, with no booking fees.
Why are some USM to GUS fares phone-only?
Consolidator contracts let us sell certain USM–GUS tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.