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USM to HAF: distance & flight time
Ko Samui (Samui Airport) → Half Moon Bay (Half Moon Bay Airport)
8,178 mi
13,162 km · 7,107 nm
16h 30m
estimated nonstop flight time
—
time difference · heading northeast
See live USM→HAF fares Phone-only fares on this route — call free
Flight time details
8,178 miles nonstop takes roughly 16h 30m gate to gate, flying northeast. 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
- USM — Samui Airport · Ko Samui, Thailand
- HAF — Half Moon Bay Airport · Half Moon Bay, 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 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
Frequently asked questions
How far is USM from HAF?
The flight distance from Ko Samui (USM) to Half Moon Bay (HAF) 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 USM to HAF?
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 USM to HAF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–HAF that never appear on search engines, with no booking fees.