Need help booking?
Unpublished phone-only deals available
LHR to AOU: distance & flight time
London (London Heathrow Airport) → Attopeu (Attopeu Airport)
6,135 mi
9,873 km · 5,331 nm
12h 30m
estimated nonstop flight time
—
time difference · heading northeast
See live LHR→AOU fares Phone-only fares on this route — call free
Flight time details
6,135 miles nonstop takes roughly 12h 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
- LHR — London Heathrow Airport · London, United Kingdom
- AOU — Attopeu Airport · Attopeu, Laos
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 LHR
- LGW · London Gatwick Airport25 mi away
- NHT · RAF Northolt6 mi away
- HYC · Wycombe Air Park18 mi away
- FAB · Farnborough Airport19 mi away
Near AOU
- VNA · Saravane Airport68 mi away
- PKZ · Pakse International Airport73 mi away
- RBE · Ratanakiri Airport76 mi away
- PXU · Pleiku Airport98 mi away
Frequently asked questions
How far is LHR from AOU?
The flight distance from London (LHR) to Attopeu (AOU) is 6,135 miles (9,873 km, 5,331 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LHR to AOU?
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 cheapest way to fly from LHR to AOU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LHR–AOU that never appear on search engines, with no booking fees.