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HAF to USM: distance & flight time
Half Moon Bay (Half Moon Bay Airport) → Ko Samui (Samui Airport)
8,178 mi
13,162 km · 7,107 nm
16h 30m
estimated nonstop flight time
—
time difference · heading northwest
See live HAF→USM fares Phone-only fares on this route — call free
Flight time details
8,178 miles nonstop takes roughly 16h 30m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- HAF — Half Moon Bay Airport · Half Moon Bay, 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 HAF
- SFO · San Francisco International Airport10 mi away
- SQL · San Carlos Airport14 mi away
- OAK · Metropolitan Oakland International Airport21 mi away
- PAO · Palo Alto Airport of Santa Clara County21 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 HAF from USM?
The flight distance from Half Moon Bay (HAF) to Ko Samui (USM) is 8,178 miles (13,162 km, 7,107 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HAF to USM?
A nonstop flight takes about 16h 30m 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 cheapest way to fly from HAF to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HAF–USM that never appear on search engines, with no booking fees.