Search flights from Siem Reap (SAI) to London (LON)

Book your plane tickets from Siem Reap to London with ease

Cheapest flights to London

The cheapest flights available in the next 60 days – prices are updated regularly

Flying from Siem Reap to London: things to know

The most popular route is from Siem Reap-Angkor International Airport in Siem Reap to London Heathrow Airport in London. On average this flight takes 18 hours 1 minute one-way and costs $2,413 round-trip.

Most popular route
Siem Reap-Angkor International Airport (SAI) to London Heathrow Airport (LHR)
Average flight time
18 hours 1 minute
Average round-trip price
$2,413
Fly from Siem Reap to London
17 airlines

Reasons to book flights with Booking.com

  • Great selection

    Easily compare flights, airlines, and prices – all in one place

  • No hidden fees

    Always know exactly what you’re paying for

  • Flexibility

    Use our flexible plane ticket option to change your dates if needed

Flexible plane ticket options are available for an additional cost on select airfares

Airlines that fly from Siem Reap to London

Airline options may vary according to recently booked flights and your search terms

  • Bangkok Airways
  • Thai Airways
  • Vietnam Airlines
  • Singapore Airlines
  • Emirates
  • Qatar Airways
  • Cambodia Angkor Air
  • China Eastern Airlines
  • Turkish Airlines
  • Austrian Airlines
  • Swiss
  • Thai Smile Airways
  • Thai Airasia
  • Lufthansa
  • Air Asia
  • Finnair

Frequently asked questions

Fly to more destinations from Siem Reap

Research, refine, and make plans for your whole trip

Flights from Cambodia to the United Kingdom

Flexible on where to fly from? Cambodia also has many flight options for the United Kingdom.

All flights

Fly to your next dream destination.

Flights to England

Getting to England just got easier!

Flights to Greater London

Getting to Greater London just got easier!

Flights to Middlesex

Getting to Middlesex just got easier!

Hotels in London

A popular choice with visitors to the United Kingdom.

Flights from Siem Reap to the United Kingdom

Compare flights, find the best prices, and hop on the next plane to the United Kingdom.

Flights to London Heathrow Airport

Jet into this airport to explore London at your leisure.

Flights to London Gatwick Airport

Jet into this airport to explore London at your leisure.
gogless