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Cheap flights from London Heathrow to Siem Reap

from as little as £737

14 nights in Siem Reap, departing London Heathrow on 22 / Mar / 2021 with Lufthansa (price found 52 hours ago)

Subject to availability, prices correct of the last 24 hours
Siem Reap

Cheap return flights from London Heathrow to Siem Reap

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The London Heathrow / Siem Reap route

All 9811 km of it

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Siem Reap flight facts

What you need to know

Alternative flights from the UK to Siem Reap

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Siem Reap

22 / Mar / 2021 is currently the lowest priced day of the year to fly the London Heathrow/Siem Reap route. There are around 307 flights on any given week from the UK to Siem Reap and the cheapest month to fly right now is March.

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

Key facts about Siem Reap

How to get cheap flights from London Heathrow to Siem Reap

Tips and advice from our flight experts

Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Siem Reap, across the three airlines that offer this route. We've found that 22 / Mar / 2021 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 307 flights from London Heathrow to or via Siem Reap every week. Out of the three available airlines, the most popular ones are Austrian Airlines, Lufthansa & Qatar Airways. 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 London Heathrow to Siem Reap is 9811 km. Normally, it takes about 19 hrs 35 mins to fly, and you can definitely expect the journey to be at least 16 hrs. 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.

Other popular destinations near Siem Reap

Where other people are flying to

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