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MFI to USM: distance & flight time
Marshfield (Marshfield Municipal Airport) → Ko Samui (Samui Airport)
8,639 mi
13,902 km · 7,507 nm
17h 24m
estimated nonstop flight time
+12h
time difference · heading north
See live MFI→USM fares Phone-only fares on this route — call free
Flight time details
8,639 miles nonstop takes roughly 17h 24m 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
- MFI — Marshfield Municipal Airport · Marshfield, 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 MFI
- ISW · Alexander Field South Wood County Airport26 mi away
- CWA · Central Wisconsin Airport27 mi away
- STE · Stevens Point Municipal Airport33 mi away
- AUW · Wausau Downtown Airport34 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 MFI from USM?
The flight distance from Marshfield (MFI) to Ko Samui (USM) is 8,639 miles (13,902 km, 7,507 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MFI to USM?
A nonstop flight takes about 17h 24m 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 Marshfield and Ko Samui?
Ko Samui is 12 hours ahead of Marshfield.
What is the cheapest way to fly from MFI to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MFI–USM that never appear on search engines, with no booking fees.