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London to Siem Reap flights

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Why book with Opodo?
  • Cheap flights with over 660 airlines
  • Compare the best deals
  • Fly to Siem Reap for low prices
Flight DurationFlights between London and Siem Reap take, on average, 13 h and 4 m minutes, but the time can vary according to other factors
Cheapest flightCheapest price for a one-way flight between London with Siem Reap found by our customers in the last 72 hours
High seasonAccording to search data from our customers, December is the busiest time to fly from London to Siem Reap
Best time to bookAccording to real data April is the most popular time to book a flight to Siem Reap when departing from London

Cheap last minute flights to Siem Reap

Latest deals and top flight routes from London airports.

Departure Wed, 02 Feb Return Sat, 12 Feb
LON London
REP Siem Reap
return from £619
Departure Wed, 16 Feb Return Sun, 27 Feb
LON London
REP Siem Reap
return from £629
Flight route information
Find out further information on London and Siem Reap to help you prepare for your trip.
Currency and price comparison
Train
Local, one-way ticket
50%

Trains in Siem Reap are 50% cheaper than in London.

London
£2.6
Siem Reap
£1.29
Meal
Mid-priced restaurant
90%

A meal in Siem Reap is 90% cheaper than a meal in London.

London
£15
Siem Reap
£1.48
Taxi
Standard daytime start rate
75%

A taxi fare in Siem Reap is 75% cheaper than in London.

London
£3
Siem Reap
£0.74
Coffee
Regular cappuccino
58%

Coffee in Siem Reap is 58% cheaper than in London.

London
£3.09
Siem Reap
£1.29
London airports
  • ( Heathrow (LHR)
    How far from city centre: 14 miles
  • ( Gatwick (LGW)
    How far from city centre: 25 miles
  • ( Stansted (STN)
    How far from city centre: 30 miles
  • ( Luton International (LTN)
    How far from city centre: 27 miles
  • ( Southend (SEN)
    How far from city centre: 35 miles
  • ( London City (LCY)
    How far from city centre: 7 miles
Siem Reap airports
  • ( SIEM REAP (REP)
    How far from city centre: 1 miles
K Distance: 6077 miles

Search for flights from London to Siem Reap

Find cheap flights from London to Siem Reap with the Opodo search engine. Whether it’s on business, for a relaxing holiday or to visit loved ones, you will find all the best deals on flights from London with Opodo, featuring cheap flights by all the top low cost and standard airlines. By simply entering your preferences in our speedy search engine, a large selection of options will be returned from which you just need to select the best deal that works for you. We’ll do the rest! Alternatively, if you are flexible on dates or an early bird, discover the cheapest day to fly from London to Siem Reap to ensure you get the best price. Find exclusive discounts by downloading the Opodo App and subscribing to our newsletter to stay in touch with the best offers on flights, hotels and more. Finally, don’t forget to book a hotel or car hire to complete your journey, all of which you will find on Opodo, your one-stop travel shop. Then just sit back and relax and enjoy your holidays!

Frequent asked questions about flights from London to Siem Reap

😷 Is it safe to travel from London to Siem Reap during the Covid-19 situation?
At Opodo we want to make sure that your travel plans are not affected by any cancelation as well as any possible restrictions Cambodia may apply when travelling from London. Is your flight cancelled? We've got your back! With our flexible ticket guarantee you can decide if you want to book another flight - free of rebooking fee - or get a full refund!
🔍 How can I find cheap flights from London to Siem Reap at Opodo?
The cheapest price for a flight from London to Siem Reap is 619£. At Opodo we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.
💰 Is Siem Reap expensive to visit compared to London?
If you compare transportation prices, the taxi ride in Siem Reap costs an average of 0.74 GBP, 75% cheaper than London, with a fare of 3.00 GBP, while train tickets costs 50% less in Siem Reap: 1.29 GBP against 2.60 GBP in London. If you compare the price of a lunch meal, however, you can find it from 1.48 GBP in Siem Reap, 90% less than the 15.00 GBP in London. The price of the coffee is around 58% cheaper in Siem Reap, with an average of 1.29 GBP, while in London the coffee costs 3.09 GBP.
📉 When is the best time to book a flight from London to Siem Reap?
The most popular months to book a trip from London to Siem Reap are April, November and January, based on the searches of our customers.
📅 When is the best time to travel from London to Siem Reap?
The best time of the year to go to Siem Reap when flying from London depends on several preference factors like climate, seasonality and, of course, price. When it comes to popularity, December is the top 1º month to fly to Siem Reap from London in terms of searches from our customer, followed by February and April. If you prefer to avoid high peaks of turism, however, and escape a crowded period, May, September and June are the months with less volume of searchs for the route London -  Siem Reap.
🕑 How long does the flight take to go from London to Siem Reap?
The total flight time between London and Siem Reap is of around 13:04 hours on average, considering an average distance of 10,267 km, for both direct and indirect flights for the route (which may have 1 or more stops in other cities in between).
🌡️ How is the weather in Siem Reap compared to London?
While in London the temperatures can reach an average of 29.01 ºC in summer, with precipitation levels up to 9.0 mm ,Siem Reap's temperatures can go up to 37.79 ºC during the hot season, with 6.0 mm average of rain rate . In winter, however, weather indicators show around 18.35 ºC in Siem Reap, compared to the -3.09 ºC average degrees reported in London. During the winter period, London can register 6.0 mm precipitation, while Siem Reap have an average of 3.0 mm rain level.
Airlines with indirect flights from London to Siem Reap are:
Airlines with indirect flights from London to Siem Reap are:
  • Thai Airways International, stoping in Bangkok for 70 minutes minimun.
  • Cambodia Angkor Air, with 125 minutes scale in Ho Chi Minh City.
  • Cambodia Angkor Air, with 125 minutes scale in Ho Chi Minh City.
Other popular routes

Other city destinations

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Our International travel websites

Vols de Londres à Siem Reap
Flights from London to Siem Reap
Flüge von London nach Siem Reap
Londres Siem Reap