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RFD to USM: distance & flight time
Rockford (Chicago Rockford International Airport) → Ko Samui (Samui Airport)
8,815 mi
14,186 km · 7,660 nm
17h 45m
estimated nonstop flight time
+12h
time difference · heading north
See live RFD→USM fares Phone-only fares on this route — call free
Flight time details
8,815 miles nonstop takes roughly 17h 45m 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
- RFD — Chicago Rockford International Airport · Rockford, 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 RFD
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 RFD from USM?
The flight distance from Rockford (RFD) to Ko Samui (USM) is 8,815 miles (14,186 km, 7,660 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RFD to USM?
A nonstop flight takes about 17h 45m 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 Rockford and Ko Samui?
Ko Samui is 12 hours ahead of Rockford.
What is the cheapest way to fly from RFD to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RFD–USM that never appear on search engines, with no booking fees.