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USM to UIN: distance & flight time
Ko Samui (Samui Airport) → Quincy (Quincy Regional Baldwin Field)
8,942 mi
14,391 km · 7,771 nm
18h
estimated nonstop flight time
-12h
time difference · heading north
See live USM→UIN 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 set-back when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- UIN — Quincy Regional Baldwin Field · Quincy, 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 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
Frequently asked questions
How far is USM from UIN?
The flight distance from Ko Samui (USM) to Quincy (UIN) 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 USM to UIN?
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 UIN?
Nonstop service on USM–UIN 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 Quincy?
Quincy is 12 hours behind Ko Samui.
What is the cheapest way to fly from USM to UIN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–UIN that never appear on search engines, with no booking fees.
Why are some USM to UIN fares phone-only?
Consolidator contracts let us sell certain USM–UIN 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.