Need help booking?
Unpublished phone-only deals available
USM to FSD: distance & flight time
Ko Samui (Samui Airport) → Sioux Falls (Joe Foss Field Airport)
8,617 mi
13,868 km · 7,488 nm
17h 22m
estimated nonstop flight time
-12h
time difference · heading north
See live USM→FSD fares Phone-only fares on this route — call free
Flight time details
8,617 miles nonstop takes roughly 17h 22m 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
- FSD — Joe Foss Field Airport · Sioux Falls, 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 FSD
- YKN · Chan Gurney Municipal Airport56 mi away
- MHE · Mitchell Municipal Airport66 mi away
- SPW · Spencer Municipal Airport82 mi away
- SUX · Sioux Gateway Col. Bud Day Field83 mi away
Frequently asked questions
How far is USM from FSD?
The flight distance from Ko Samui (USM) to Sioux Falls (FSD) is 8,617 miles (13,868 km, 7,488 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to FSD?
A nonstop flight takes about 17h 22m 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 Ko Samui and Sioux Falls?
Sioux Falls is 12 hours behind Ko Samui.
What is the cheapest way to fly from USM to FSD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–FSD that never appear on search engines, with no booking fees.