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USM to APC: distance & flight time
Ko Samui (Samui Airport) → Napa (Napa County Airport)
8,156 mi
13,125 km · 7,087 nm
16h 28m
estimated nonstop flight time
-14h
time difference · heading northeast
See live USM→APC fares Phone-only fares on this route — call free
Flight time details
8,156 miles nonstop takes roughly 16h 28m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- APC — Napa County Airport · Napa, 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 APC
- SFO · San Francisco International Airport41 mi away
- NOT · Marin County Airport - Gnoss Field16 mi away
- SUU · Travis Air Force Base20 mi away
- CCR · Buchanan Field20 mi away
Frequently asked questions
How far is USM from APC?
The flight distance from Ko Samui (USM) to Napa (APC) is 8,156 miles (13,125 km, 7,087 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to APC?
A nonstop flight takes about 16h 28m 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 Napa?
Napa is 14 hours behind Ko Samui.
What is the cheapest way to fly from USM to APC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–APC that never appear on search engines, with no booking fees.