Cheap flights from London Heathrow Airport to Siem Reap, Cambodia from £345

For a flight from London Heathrow to Siem Reap, you will be flying into Siem Reap–Angkor Intl. Siem Reap–Angkor Intl (SAI) is just 24.7 mi from the center of the city. Siem Reap–Angkor Intl is the only Siem Reap airport and it handles 0 inbound flights from London Heathrow per day. 5 airlines have flights to Siem Reap–Angkor Intl from London Heathrow on a regular basis.

A quick flight from London Heathrow Airport to Siem Reap can take about 22h 55m. SWISS provides one of the quickest options available for as low as £597. Airlines will cover a distance of 6106 mi. Both multi-stop and direct flights can be found to your destination and back.

Cheapflights users have booked flights from London Heathrow Airport to Siem Reap round-trip from £548. Other airlines that can offer you cheap pricing are Lufthansa, from £607, and Vietnam Airlines, from £626. These flights start at 32% lower than the current average price 3 months from now.

Yes. In addition to deals on Heathrow to Siem Reap flights, Cheapflights offers holiday packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Siem Reap.

Yes. Cheapflights offers flight deals from Heathrow to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Siem Reap (average of £593). Flying from London Heathrow Airport to Siem Reap in August is currently the most expensive (average of £1,058). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.