Book cheap flights from London to Phnom Penh with Netflights. We scan all 698 of the weekly flights going via Phnom Penh, so that you can compare them in one place. If you can’t find what you’re looking for, simply adjust the filters to widen your search.
Generally, London Heathrow (LHR) is the most popular choice for flights to Phnom Penh. And the most popular airlines are Austrian Airlines, Singapore Airlines & Thai Airways International. But when you fly is just as important as who you fly with. If you're flexible on dates, try searching by month to see when the cheapest flights are.
On average, the 10038 km flight to Phnom Penh takes 18 hrs 40 mins. If you want a bargain, keep an eye out for flights with Finnair, as they often have good deals. Or you could broaden your search by looking at flights to other airports in Cambodia to see if there are any cheaper options.
Today, we’ve scanned 5,948 flights, to help you see all the options for your trip to Phnom Penh. Once you’ve chosen your flight, why not check out our deals on accommodation and car hire? You’ll find lots of hotels in Cambodia, including some close to the airport – perfect if you're arriving late or leaving early.