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UIN to USM: distance & flight time
Quincy (Quincy Regional Baldwin Field) → Ko Samui (Samui Airport)
8,942 mi
14,391 km · 7,771 nm
18h
estimated nonstop flight time
+12h
time difference · heading north
See live UIN→USM fares Phone-only fares on this route — call free
Flight time details
8,942 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 gain when reading arrival times on your ticket.
The two airports
- UIN — Quincy Regional Baldwin Field · Quincy, 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 UIN
- EOK · Keokuk Municipal Airport38 mi away
- BRL · Southeast Iowa Regional Airport58 mi away
- IRK · Kirksville Regional Airport72 mi away
- GBG · Galesburg Municipal Airport80 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 UIN from USM?
The flight distance from Quincy (UIN) to Ko Samui (USM) is 8,942 miles (14,391 km, 7,771 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UIN to USM?
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.
What is the time difference between Quincy and Ko Samui?
Ko Samui is 12 hours ahead of Quincy.
What is the cheapest way to fly from UIN to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UIN–USM that never appear on search engines, with no booking fees.