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KRH to USM: distance & flight time
Redhill (Redhill Aerodrome) → Ko Samui (Samui Airport)
6,140 mi
9,881 km · 5,335 nm
12h 30m
estimated nonstop flight time
+6h
time difference · heading east
See live KRH→USM fares Phone-only fares on this route — call free
Flight time details
6,140 miles nonstop takes roughly 12h 30m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- KRH — Redhill Aerodrome · Redhill, United Kingdom
- 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 KRH
- LGW · London Gatwick Airport5 mi away
- LHR · London Heathrow Airport23 mi away
- BQH · London Biggin Hill Airport11 mi away
- LCY · London City Airport22 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 KRH from USM?
The flight distance from Redhill (KRH) to Ko Samui (USM) is 6,140 miles (9,881 km, 5,335 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KRH to USM?
A nonstop flight takes about 12h 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 time difference between Redhill and Ko Samui?
Ko Samui is 6 hours ahead of Redhill.
What is the cheapest way to fly from KRH to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KRH–USM that never appear on search engines, with no booking fees.