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Cheap Flights from London to Siem Reap - Compare and Book on Opodo

Flight route information

Currency and price comparison

Train Local, one-way ticket
60% Trains in Siem Reap are 60% cheaper than in London.
London £2.9
Siem Reap £1.2
Meal Mid-priced restaurant
90% A meal in Siem Reap is 90% cheaper than a meal in London.
London £19
Siem Reap £1.98
Exchange rate
1 GBP = 5004.01 KHR
1 KHR = 0.01 GBP
Last checked on 18 April 2024
Distance: 6077 miles
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

Search for flights from London to Siem Reap

Tips for booking cheap flights from London to Siem Reap

Now you are a little bit closer to your destination. If you are looking for cheap flights from London to Siem Reap, here you will find all the information you need to book your tickets.


Would you like to travel from London to Siem Reap and you are looking for cheap flights? Luck is on your side! At Opodo, you'll find the best travel deals. Take advantage of this opportunity and get your ticket from London to Siem Reap at the best price!

1. What can I do to save money when booking flights from London to Siem Reap?

To save money when booking flights from London to Siem Reap, you can follow these tips:

By following these strategies, you can efficiently save money when booking flights from London to Siem Reap, ensuring a more economical and enjoyable journey.

2. Can the price of my tickets from London to Siem Reap change during the booking process?

Prices for tickets from London to Siem Reap may fluctuate while you are in the process of booking. While this isn't a common occurrence, it can happen because Opodo operates as an online travel agency, and ticket prices and availability are ultimately determined by the airlines. Therefore, if the airline adjusts prices or if the available tickets are depleted while you are making your reservation, you will receive confirmation within 48 hours after your ticket purchase.

3. Can I book last-minute flights from London to Siem Reap on Opodo?

When booking a flight, you may encounter situations where your desired travel date is unavailable or the flight price has increased beyond your budget. Rest assured, Opodo offers a solution. Explore our last-minute flight deals to find affordable options, especially if you have flexibility with your travel dates. Whether you need to depart on short notice or simply want to discover the cheapest day to fly between London and Siem Reap, our last-minute flights section has you covered.

4. How to make my reservation through the Opodo search engine?

Opodo provides you with all the useful information about the flights covering the route between London to Siem Reap airports. Preparing for your trip is very easy! All you have to do is enter into Opodo search engine your departure and destination airports, the dates of travel, and the number of passengers. A list of all available flights will appear on your screen in a matter of seconds! For your convenience, you can sort it according to your preferences, such as time, price, or duration of the trip.


Ready to start your journey from London to Siem Reap? Visit Opodo now to discover the best travel deals, set price alerts, and book your flight ticket at the best price. Your adventure begins here. Book with Opodo and make your travel dreams a reality!

Frequently asked questions about flights from London to 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 can I find cheap flights from London to Siem Reap at Opodo?
At Opodo we use different machine learned based methodologies to find our costumers the cheapest flight available from London to Siem Reap. Considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys, our search engine works to provides always the best price with the best conditions.
Is Siem Reap expensive to visit compared to London?
If you compare transportation prices, the taxi ride in Siem Reap costs an average of 0.60 GBP, 85% cheaper than London, with a fare of 4.00 GBP, while train tickets costs 59% less in Siem Reap: 1.20 GBP against 2.90 GBP in London. If you compare the price of a lunch meal, however, you can find it from 1.98 GBP in Siem Reap, 90% less than the 19.00 GBP in London. The price of the coffee is around 70% cheaper in Siem Reap, with an average of 1.09 GBP, while in London the coffee costs 3.62 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.
Is it possible to purchase a flexible ticket for my flight from London to Siem Reap?
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 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.
Flight Duration 13 h and 4 m Flights between London and Siem Reap take, on average, 13 h and 4 m minutes, but the time can vary according to other factors
High season December According to search data from our customers, December is the busiest time to fly from London to Siem Reap
Airlines flying this route EVA Air, Qatar Airways, Thai Airways International Airline(s) with flights between London to Siem Reap
Best time to book April According to real data April is the most popular time to book a flight to Siem Reap when departing from London

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