Q: What is the typical price of a round-trip flight between London and Phnom Penh?

Prices are currently low for flights on this route. Typical prices usually range from £771 to £949. The lowest price recently found on this route was £399.

Question 1

What is the typical price of a round-trip flight between London and Phnom Penh?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from £771 to £949.
The lowest price recently found on this route was £399.

Question 2

What is the cheapest day to depart on your flight to Phnom Penh?

Accepted Answer

Our data shows that Monday is the least expensive day to fly to Phnom Penh. Tickets to fly out on this day can be as low as £622. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Phnom Penh on Friday is £724.

Question 3

How far in advance should I book a flight to Phnom Penh?

Accepted Answer

You are more likely to see cheaper flights to Phnom Penh from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around £713 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from London for as low as £614 on momondo.

Question 4

Which stopover airport offers the lowest fares from London to Phnom Penh?

Accepted Answer

Flights via Shenzhen (SZX) offer the lowest average return price of £394.

Question 5

Can stopping save me money on London to Phnom Penh flights?

Accepted Answer

You could potentially save up to 12% on your flight if you consider stops on a London to Phnom Penh flight.

Question 6

What is the cheapest month to fly to Phnom Penh?

Accepted Answer

The month of September is another great option to travel to Phnom Penh, with average flight prices from London averaging around £554.

Question 7

Which stopover airport has the shortest connection time from London to Phnom Penh?

Accepted Answer

Hong Kong (HKG) has the shortest average stopover time for this route: 1h 15m.

Question 8

What is the cheapest airline that flies from London to Phnom Penh Pochentong?

Accepted Answer

Shenzhen Airlines, China Eastern, and Air China are the most popular carriers operating from London to Phnom Penh Pochentong

Question 9

How have London to Phnom Penh flight prices changed over time?

Accepted Answer

As of July 2025, prices for London to Phnom Penh flights are approximately 51% more expensive when compared to flights at the same time last year.

Question 10

Which airlines fly to Phnom Penh?

Accepted Answer

China Southern, Air China and Singapore Airlines are the top three most popular airlines that fly to Phnom Penh from London according to our data. China Southern is the first choice among our users, with 34% of people opting to fly with this airline when travelling to Phnom Penh. Keep in mind that there are 13 different airlines that fly to Phnom Penh on a routine basis, so you have a few additional options to choose from.

Question 11

Which stopover airport has the shortest travel time from London to Phnom Penh?

Accepted Answer

Flights connecting via Ho Chi Minh City (SGN) have the shortest average one-way travel time: 2h 35m.

Question 12

Which airport is the most popular for stopovers for flights between London and Phnom Penh?

Accepted Answer

Bangkok (BKK) was the most common stop: 24% of momondo users choosing one-stop flights on this route connected there.

Question 13

What is the cheapest time of day to depart on your flight to Phnom Penh?

Accepted Answer

Our data shows that the cheapest London to Phnom Penh flights are usually those with departure times in the evening. Our users have found flights to Phnom Penh in the evening for as low as £531. At midday is when there is more demand to fly to Phnom Penh, so prices are often more expensive at around £816 per ticket.

Question 14

What are the benefits of the different airports in London and PhnomPenh?

Accepted Answer

Once you have decided on your flights from London to Phnom Penh, your choice of airport will most likely depend on your distance from the airport and transportation options. Heathrow is the closest to central London and the largest airport with the most frequent transport options. However, all London airports are major airports with all facilities you would need, including a wide choice of airport lounges, duty-free shopping, disabled access, restaurants, pubs, pharmacies, retail stores and more. When arriving at Phnom Penh, you arrive at the largest airport in Cambodia with all the facilities available to you, including free Wi-Fi, airport lounges, duty-free shopping, restaurants and coffee shops, souvenir shops and more.

Question 15

Which airlines fly direct London to Phnom Penh?

Accepted Answer

Taking direct flights from London to Phnom Penh is unfortunately not an option, but there are still many flights with stopovers you can choose from. There are lots of options for flights with one stopover, which is the best bet as these flights take on average 15-18 hours. There are flights with up to three stops, and these take on average 26 to 40 hours. If you are travelling on a budget and want to book cheap flights from London to Phnom Penh, then book flights with more stops and further in advance. The main airlines offering flights with one-stop only are Thai Airways, Singapore Airlines and Bangkok Airways. If you choose flights with one or two stops, you can fly with Emirates, Jetstar Asia, Qatar Airways, Air France, RyanAir, LanMei Airlines and more.

Question 16

What is the best way to get in and out of airports in London and PhnomPenh?

Accepted Answer

When getting to the airport for your flights from London to Phnom Penh, take into account the distance you would need to travel to each airport. Heathrow is the most central with the best transport options, but each airport has its transport lines. Taxi or rideshare is your most convenient option when travelling on a long-distance flight, but it is pricier. To Heathrow, catch the Heathrow Express at Paddington station to arrive at the airport in 15 minutes. Or, you can take the Piccadilly tube line direct to the airport and arrive in about 50 minutes. The cheapest option is to catch the bus at Victoria Station. To Gatwick, the express train or tube from Victoria station will take you there in the quickest time, but the coach will be the cheapest. Arriving at Phnom Penh, there are limited transport options, with the bus being the cheapest. You can catch the No 3 bus to the city, which runs daily. The most convenient and safest is hiring a taxi from the airport, but if you want to experience the local transport, a Cambodian tuk-tuk will be a fun way to enter the city.

Which cities can you get to from Phnom Penh?

Travelling in Cambodia is an adventure, and there are many cities to explore. If you want to dig deep into the history, then a journey to Krong Siem Reap is a must-see. Explore this resort town in northwest Cambodia and admire the carved stone buildings on the Cambodia flag. You can fly there on average in an hour or choose from a bus journey that will take about 6 hours. A shorter trip for a day outing is Krong Kampong Cham, which is, on average, a 2 hour ride. It’s a city on the Mekong River, famous for its French colonial buildings. Visit the famous Buddhist temple Banteay Prey Norkor and feel the ancient spiritual background. Stroll on the bamboo bridge and embrace the essence of the culture.

Question 17

When did momondo last update prices for flights from London to Phnom Penh Pochentong Airport?

Accepted Answer

Prices for flights from London to Phnom Penh Pochentong Airport are refreshed on a daily basis.

Question 18

How many operators does momondo search for flights from London to Phnom Penh Pochentong Airport?

Accepted Answer

As of July 2025, there are 13 operators available to choose from for flights from London to Phnom Penh Pochentong Airport.

Question 19

How old do you have to be to fly from London to Phnom Penh Pochentong Airport?

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Phnom Penh Pochentong Airport.

Question 20

What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?

Accepted Answer

The necessary travel and health documents for your Phnom Penh Pochentong Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best price found	£290
Fastest flight time	15h 25m
Direct flights	None
Airports in Phnom Penh	1 airport

Airline	Rating	Free Cancellation	Price
China Southern	PriceFrom £365	Free Cancellation	Rating 7.6 104 reviews	Search China Southern flights
Shenzhen Airlines	PriceFrom £385	Free Cancellation	Rating 6.8 15 reviews	Search Shenzhen Airlines flights
Air China	PriceFrom £426	Free Cancellation	Rating 7.3 91 reviews	Search Air China flights
China Eastern	PriceFrom £516	Free Cancellation	Rating 7.2 158 reviews	Search China Eastern flights
Etihad Airways	PriceFrom £520	Free Cancellation	Rating 7.4 1,228 reviews	Search Etihad Airways flights
Singapore Airlines	PriceFrom £569	Free Cancellation	Rating 8.1 1,338 reviews	Search Singapore Airlines flights
Malaysia Airlines	PriceFrom £600	Free Cancellation	Rating 7.4 270 reviews	Search Malaysia Airlines flights
British Airways	PriceFrom £652	Free Cancellation	Rating 6.6 7,215 reviews	Search British Airways flights
Vietnam Airlines	PriceFrom £662	Free Cancellation	Rating 7.5 196 reviews	Search Vietnam Airlines flights
Cathay Pacific	PriceFrom £678	Free Cancellation	Rating 7.6 948 reviews	Search Cathay Pacific flights

Cheap flights from London to Phnom Penh from £290

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Phnom Penh departing on 30/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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What is the typical price of a round-trip flight between London and Phnom Penh?

What is the cheapest month to fly to Phnom Penh?

The month of September is another great option to travel to Phnom Penh, with average flight prices from London averaging around £554.

What is the cheapest day to depart on your flight to Phnom Penh?

What is the cheapest time of day to depart on your flight to Phnom Penh?

How far in advance should I book a flight to Phnom Penh?

Can stopping save me money on London to Phnom Penh flights?

You could potentially save up to 12% on your flight if you consider stops on a London to Phnom Penh flight.

How have London to Phnom Penh flight prices changed over time?

As of July 2025, prices for London to Phnom Penh flights are approximately 51% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from London to Phnom Penh Pochentong?

Shenzhen Airlines, China Eastern, and Air China are the most popular carriers operating from London to Phnom Penh Pochentong

Which airlines fly to Phnom Penh?

Which airport is the most popular for stopovers for flights between London and Phnom Penh?

Bangkok (BKK) was the most common stop: 24% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London to Phnom Penh?

Flights via Shenzhen (SZX) offer the lowest average return price of £394.

Which stopover airport has the shortest travel time from London to Phnom Penh?

Flights connecting via Ho Chi Minh City (SGN) have the shortest average one-way travel time: 2h 35m.

Which stopover airport has the shortest connection time from London to Phnom Penh?

Hong Kong (HKG) has the shortest average stopover time for this route: 1h 15m.

When to book flights from London to Phnom Penh

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When did momondo last update prices for flights from London to Phnom Penh Pochentong Airport?

How many operators does momondo search for flights from London to Phnom Penh Pochentong Airport?

How old do you have to be to fly from London to Phnom Penh Pochentong Airport?

What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?

What is the most popular airline from London to Phnom Penh?

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