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USM to BIL: distance & flight time
Ko Samui (Samui Airport) → Billings (Billings Logan International Airport)
8,221 mi
13,231 km · 7,144 nm
16h 35m
estimated nonstop flight time
-13h
time difference · heading north
See live USM→BIL fares Phone-only fares on this route — call free
Flight time details
8,221 miles nonstop takes roughly 16h 35m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- BIL — Billings Logan International Airport · Billings, 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 BIL
- COD · Yellowstone Regional Airport92 mi away
- LVM · Mission Field92 mi away
- LWT · Lewistown Municipal Airport96 mi away
- SHR · Sheridan County Airport105 mi away
Frequently asked questions
How far is USM from BIL?
The flight distance from Ko Samui (USM) to Billings (BIL) is 8,221 miles (13,231 km, 7,144 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to BIL?
A nonstop flight takes about 16h 35m 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 Billings?
Billings is 13 hours behind Ko Samui.
What is the cheapest way to fly from USM to BIL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–BIL that never appear on search engines, with no booking fees.