Cheap flights from London Heathrow to Siem Reap

from as little as £370

14 nights in Siem Reap, departing London Heathrow on 30 / Sep / 2019 with China Southern Airlines (price found 18 hours ago)

Subject to availability, prices correct of the last 24 hours
Siem Reap
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cheap return flights from London Heathrow to Siem Reap find your ideal flight.....

The London Heathrow / Siem Reap route the whole 9811 km of it

Cheap flight deals for this route take a look at what's hot at the moment

Siem Reap flight facts what you need to know

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Siem Reap

Today alone, Netflights has searched over 1,517 flights. 30 / Sep / 2019 is currently the lowest priced day of the year to fly the London Heathrow/Siem Reap route. There are around 199 flights on any given week from the UK to Siem Reap and the cheapest month to fly right now is September.

Min / Max Temperature (°C)
LOWEST

19 °C

AVG

26 °C

HIGHEST

34 °C

Rainfall (mm)
LOWEST

0 mm

AVG

109.2 mm

HIGHEST

239 mm

How to get great deals on London Heathrow/Siem Reap flights tips and advice from the pros

Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Siem Reap, across the 12 airlines that offer this route. We've found that 30 / Sep / 2019 is the cheapest date to travel at the moment, but it's best to go through the results to see which flight suits you.

There are 199 flights from London Heathrow to or via Siem Reap every week. Out of the 12 available airlines, the most popular ones are British Airways, Thai Airways International and Vietnam Airlines. But that doesn’t necessarily mean they’ll be the best option for your travel dates. To see as many flights as possible, try widening your search to include other departure airports.

The distance between to Siem Reap is 9811 km. Normally, it takes about 18 hrs 25 mins to fly, and you can definitely expect the journey to be at least 14 hrs 20 mins. You can see the various flight times in the results.

The cheapest month to fly to Siem Reap is May, while December is when the prices of flights, hotels and car hire will be at their highest. If you need somewhere to stay for your trip to Cambodia, take a look at our accommodation options.

Popular destinations where other people are flying to near Siem Reap

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