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USM to SEE: distance & flight time
Ko Samui (Samui Airport) → El Cajon (Gillespie Field)
8,627 mi
13,884 km · 7,497 nm
17h 23m
estimated nonstop flight time
-14h
time difference · heading northeast
See live USM→SEE fares Phone-only fares on this route — call free
Flight time details
8,627 miles nonstop takes roughly 17h 23m 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
- SEE — Gillespie Field · El Cajon, 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 SEE
Frequently asked questions
How far is USM from SEE?
The flight distance from Ko Samui (USM) to El Cajon (SEE) is 8,627 miles (13,884 km, 7,497 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to SEE?
A nonstop flight takes about 17h 23m 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 El Cajon?
El Cajon is 14 hours behind Ko Samui.
What is the cheapest way to fly from USM to SEE?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–SEE that never appear on search engines, with no booking fees.