How much is a ticket from London Heathrow to Siem Reap?

Flight prices from London to Siem Reap change depending on demand and time of booking.

Select your dates to check current offers.

Flying at off-peak hours — such as early morning or late evening — can help you save. Also, the best deals tend to appear in the weeks leading up to departure.

Are there multiple airports in London and Siem Reap?

If your departure or arrival city has more than one airport, it's worth comparing all of them for timing and pricing.

• Airports in London: 6 airports are active in London - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.
• Airports in Siem Reap: Siem Reap is the only airport currently running.

If you're traveling with a group or bulky luggage, look into parking or transport options. Alternative airports may offer faster transfers or better rates.

Explore flights from London Heathrow to Siem Reap your way

On Jetcost, you can filter by round-trip or one-way, time of day, airline, number of stops, and even by specific travel agency.

Other popular destinations

Also interested in Cambodia? Check out: Phnom Penh, Siem Reap, Sihanoukville.

If you’re flexible with dates, try checking the days before and after to see if prices vary. Some routes are offered by multiple agencies — comparing fares can really pay off.