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REP to SOU: distance & flight time
Siem-reap (Siem Reap International Airport) → Southampton (Southampton Airport)
6,140 mi
9,882 km · 5,336 nm
12h 30m
estimated nonstop flight time
-6h
time difference · heading northwest
See live REP→SOU fares Phone-only fares on this route — call free
Flight time details
6,140 miles nonstop takes roughly 12h 30m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- REP — Siem Reap International Airport · Siem-reap, Cambodia
- SOU — Southampton Airport · Southampton, United Kingdom
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 REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Near SOU
- LGW · London Gatwick Airport52 mi away
- LHR · London Heathrow Airport53 mi away
- QLA · Lasham Airport22 mi away
- BBP · Bembridge Airport22 mi away
Frequently asked questions
How far is REP from SOU?
The flight distance from Siem-reap (REP) to Southampton (SOU) is 6,140 miles (9,882 km, 5,336 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from REP to SOU?
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.
Are there nonstop flights from REP to SOU?
Nonstop service on REP–SOU depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 12h 30m nonstop estimate.
What is the time difference between Siem-reap and Southampton?
Southampton is 6 hours behind Siem-reap.
What is the cheapest way to fly from REP to SOU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on REP–SOU that never appear on search engines, with no booking fees.
Why are some REP to SOU fares phone-only?
Consolidator contracts let us sell certain REP–SOU tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.