How long is the flight from Phnom Penh to London?

Etihad Airways can get you from Phnom Penh to London in just under 25h 40m. Your travel time can differ by up to . The distance from Phnom Penh to London is about 6232 mi.

What are the cheapest airlines flying from Phnom Penh to London round-trip?

According to our current data, China Eastern ($564), China Southern ($663), and Air China ($706) offers the cheapest pricing from Phnom Penh to London. These flights start at 39% lower than the current average price 3 months from now.

What is the cheapest day to fly from Phnom Penh to London?

Travelers seeking maximum savings on their Phnom Penh to London flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What are the most popular routes from Phnom Penh to London?

When deciding which route to take from Phnom Penh to London consider Phnom Penh Pochentong - London Heathrow, Phnom Penh Pochentong - London Gatwick or Phnom Penh Pochentong - London City as they are the most popular.

What are the most popular airlines that fly from Phnom Penh to London?

The most popular airlines flying from Phnom Penh to London are Air China, China Southern and Malaysia Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Phnom Penh to London?

Departing on a Friday is a good option for securing a great price. You can expect to save up to 24% when planning your travel around this day of the week.

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

Users have found that booking a flight from Phnom Penh to London at least 45 days early can save you up to 19% on average compared to booking a flight this week. If booking 45 days before your flight isn’t an option for you, users have found flights from Phnom Penh to London for as little as $765 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $765 for flights departing within the next 3 days.

What is the cheapest month to fly from Phnom Penh to London?

November can be a great time to fly to London from Phnom Penh with a flight ticket averaging about $927. Cheapflights users have found deals in the month of November for as cheap as $609. The most expensive prices can be found in the month of July.

What airport do you fly from for flights from Phnom Penh to London?

Phnom Penh Pochentong (PNH), located 5.0 mi from the city center, is the airport you fly out of when you book flights from Phnom Penh to London. 6 airlines have flights from Pochentong to London on a regular basis. Booking flights from Phnom Penh Pochentong to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.

Can I find deals for flights from Phnom Penh to London that include hotel bookings?

Yes. In addition to deals on Phnom Penh to London flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Phnom Penh to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phnom Penh to London.

Can I find deals for business class flights from Phnom Penh to London?

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

$1,038+ Cheap Flights from Phnom Penh to London

Q: How much does it cost to fly round-trip from Phnom Penh to London?

Airfare is above average for this route at the moment. Phnom Penh to London flights typically cost between $881 and $999 in March. The cheapest round-trip price found within the last 3 days was $1,038 on Etihad Airways (Mar 12-Mar 16).

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Find cheap flights from Phnom Penh to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Phnom Penh Pochentong to London are usually found in November or March, booked 44 days in advance, depart on a Saturday or Thursday and return on a Monday

Cheap flight deals from Phnom Penh to London

Round-trip from	$1,038 (Etihad Airways)
Popular in	July
Cheapest in	November
Average price	$919

From Phnom Penh Pochentong to London (LON)

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($165 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Phnom Penh to London

Cheapest flights from Phnom Penh to London
Explore the most affordable flight options available from Phnom Penh to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Thu 10/307:55 amPNH - LHR

3 stops31h 10mMultiple Airlines

Thu 11/66:35 amLHR - PNH

2 stops16h 55mMultiple Airlines

Deal found 9/15

$1,376

Best flights from Phnom Penh to London
Discover carefully curated flight deals from Phnom Penh to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Thu 3/127:50 pmPNH - LHR

1 stop25h 40mEtihad Airways

Mon 3/168:55 pmLHR - PNH

1 stop14h 30mEtihad Airways

Deal found 9/13

$1,038

Thu 10/307:55 amPNH - LHR

3 stops31h 10mMultiple Airlines

Thu 11/66:35 amLHR - PNH

2 stops16h 55mMultiple Airlines

Deal found 9/15

$1,376

Last-minute flights from Phnom Penh to London
Discover last-minute flight deals from Phnom Penh to London. Data last updated September 15, 2025 and is based on user searches.

Thu 10/307:55 amPNH - LHR

3 stops31h 10mMultiple Airlines

Thu 11/66:35 amLHR - PNH

2 stops16h 55mMultiple Airlines

Deal found 9/15

$1,376

One-way flights from Phnom Penh to London
Search for one-way flight options from Phnom Penh to London. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Mon 3/97:55 amPNH - LHR

1 stop37h 35mEtihad Airways

Deal found 9/14

$1,727

Mon 3/97:55 amPNH - LGW

2 stops33h 55mMultiple Airlines

Deal found 9/14

$2,244

Mon 3/97:55 amPNH - LHR

2 stops31h 30mMultiple Airlines

Deal found 9/14

$2,244

Mon 3/97:55 amPNH - LCY

2 stops34h 00mMultiple Airlines

Deal found 9/14

$2,271

Fly from

Fly to

Route

Depart

Return

Price

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Thu 3/12

7:50 pm-2:30 pm

1 stop25h 40m

London Heathrow

Mon 3/16

8:55 pm-6:25 pm

1 stop14h 30m

$1,038

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Thu 10/30

7:55 am-8:05 am

3 stops31h 10m

London Heathrow

Thu 11/6

6:35 am-6:30 am

2 stops16h 55m

$1,376

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Mon 3/9

7:55 am-2:30 pm

1 stop37h 35m

$1,727

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Mon 3/9

7:55 am-10:50 am

2 stops33h 55m

$2,244

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Mon 3/9

7:55 am-8:25 am

2 stops31h 30m

$2,244

Phnom PenhLondon

PNH - LCY

PNHLCY

Phnom Penh Pochentong

Mon 3/9

7:55 am-10:55 am

2 stops34h 00m

$2,271

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Phnom Penh to London

Have a flexible travel schedule? Discover the best time to fly to London from Phnom Penh with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phnom Penh to London

How far ahead should I book a flight from Phnom Penh to London?

To ensure you get the cheapest price possible for a flight from Phnom Penh to London, you should look to book at least 44 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Phnom Penh to London?

Currently, November is the cheapest month in which you can book a flight from Phnom Penh to London (average of $661). Flying from Phnom Penh to London in June is currently the most expensive (average of $1,097). 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.

What is the cheapest time of day to fly from PNH to LON?

It’s optimal to fly from Phnom Penh to London in the afternoon. By choosing this option you can save up to 32% on the cost of your flight, compared to a flight at noon.

How much does it cost to fly round-trip from Phnom Penh to London?

What’s the top layover airport for flights from Phnom Penh to London?

Singapore (SIN) – chosen by Cheapflights users on 61% of 1-stop itineraries from Phnom Penh to London on Cheapflights.

What’s the cheapest layover airport for flights from Phnom Penh to London?

Beijing (PEK) is the most affordable 1-stop option, with an average round-trip price of $1,011.

What’s the fastest layover option from Phnom Penh to London?

Flights via Bangkok (BKK) have the shortest average one-way travel time for 1-stop routes: 15h 30m.

Which airport typically offers the quickest layover for flights from Phnom Penh to London?

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average layover time of 1h 43m.

Reviews of airlines servicing London

Get a feel of what it's like to fly with Emirates, Singapore Airlines, and Thai Airways from Phnom Penh to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Emirates

8.1

Very good

3,334 reviews

Reviews

1 / 20

10.0

Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Emirates

8.1

Very good

3,334 reviews

Emirates

8.1

Very good

3,334 reviews

Reviews

1 / 20

10.0

Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Singapore Airlines

8.1

Very good

1,365 reviews

Emirates

8.1

Very good

3,334 reviews

Reviews

1 / 20

10.0

Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Thai Airways

7.8

Good

350 reviews

Emirates

8.1

Very good

3,334 reviews

Reviews

1 / 20

10.0

Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

China Southern

7.5

Good

110 reviews

Emirates

8.1

Very good

3,334 reviews

Reviews

1 / 20

10.0

Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

China Eastern

7.2

Good

165 reviews

Emirates

8.1

Very good

3,334 reviews

Reviews

1 / 20

10.0

Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Related info for your journey

What airport do you fly from for flights from Phnom Penh to London?
Phnom Penh Pochentong (PNH), located 5.0 mi from the city center, is the airport you fly out of when you book flights from Phnom Penh to London. 6 airlines have flights from Pochentong to London on a regular basis. Booking flights from Phnom Penh Pochentong to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.
How long is the flight from Phnom Penh to London?
Etihad Airways can get you from Phnom Penh to London in just under 25h 40m. Your travel time can differ by up to . The distance from Phnom Penh to London is about 6232 mi.
What are the cheapest airlines flying from Phnom Penh to London round-trip?
According to our current data, China Eastern ($564), China Southern ($663), and Air China ($706) offers the cheapest pricing from Phnom Penh to London. These flights start at 39% lower than the current average price 3 months from now.
What are the most popular routes from Phnom Penh to London?
When deciding which route to take from Phnom Penh to London consider Phnom Penh Pochentong - London Heathrow, Phnom Penh Pochentong - London Gatwick or Phnom Penh Pochentong - London City as they are the most popular.
Can I find deals for flights from Phnom Penh to London that include hotel bookings?
Yes. In addition to deals on Phnom Penh to London flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Phnom Penh to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phnom Penh to London.
Can I find deals for business class flights from Phnom Penh to London?
Yes. Cheapflights offers flight deals from Phnom Penh to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Phnom Penh to London?
Currently, November is the cheapest month in which you can book a flight from Phnom Penh to London (average of $661). Flying from Phnom Penh to London in June is currently the most expensive (average of $1,097). 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.

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Top 6 airlines flying from Phnom Penh to London

Airline	Cheapest	Average	Flexibility	On-time
China Eastern	Cheapest$564	Average$808	FlexibilityNo cancel fee	On-time62%
China Southern	Cheapest$663	Average$739	FlexibilityNo cancel fee	On-time69%
Air China	Cheapest$706	Average$792	FlexibilityNo cancel fee	On-time67%
Malaysia Airlines	Cheapest$865	Average$1,337	FlexibilityNo cancel fee	On-time67%
Singapore Airlines	Cheapest$921	Average$1,273	FlexibilityNo cancel fee	On-time81%
Thai Airways	Cheapest$1,120	Average$1,314	FlexibilityNo cancel fee	On-time77%

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$1,038+ Cheap flights from Phnom Penh (PNH) to London (LON)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Phnom Penh to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Phnom Penh Pochentong to London are usually found in November or March, booked 44 days in advance, depart on a Saturday or Thursday and return on a Monday

Cheap flight deals from Phnom Penh to London

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Phnom Penh to London

Cheapest flights from Phnom Penh to LondonExplore the most affordable flight options available from Phnom Penh to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Explore the most affordable flight options available from Phnom Penh to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Phnom Penh to London that are best for you.

Best time to book a flight from Phnom Penh to London

Have a flexible travel schedule? Discover the best time to fly to London from Phnom Penh with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Phnom Penh to London

How far ahead should I book a flight from Phnom Penh to London?

Use this chart to determine the optimal time to book a round-trip flight from Phnom Penh to London. Price data was last updated on September 12, 2025.

What is the cheapest month to book a flight from Phnom Penh to London?

What is the cheapest time of day to fly from PNH to LON?

Find hourly flight availability from Phnom Penh to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

How much does it cost to fly round-trip from Phnom Penh to London?

What’s the top layover airport for flights from Phnom Penh to London?

Share of 1-stop round-trip flights from Phnom Penh to London chosen by Cheapflights users in the past 12 months, using the same layover each way.

What’s the cheapest layover airport for flights from Phnom Penh to London?

Average round-trip fare for 1-stop flights from Phnom Penh to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.

What’s the fastest layover option from Phnom Penh to London?

Shortest average travel time for 1-stop one-way flights from Phnom Penh to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Which airport typically offers the quickest layover for flights from Phnom Penh to London?

Average layover duration for 1-stop one-way flights from Phnom Penh to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing London

Get a feel of what it's like to fly with Emirates, Singapore Airlines, and Thai Airways from Phnom Penh to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Phnom Penh to London?

How long is the flight from Phnom Penh to London?

What are the cheapest airlines flying from Phnom Penh to London round-trip?

What are the most popular routes from Phnom Penh to London?

Can I find deals for flights from Phnom Penh to London that include hotel bookings?

How can I find direct flights from Phnom Penh to London?

Can I find deals for business class flights from Phnom Penh to London?

What is the cheapest month to book a flight from Phnom Penh to London?

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Top 6 airlines flying from Phnom Penh to London

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Cheapest flights from Phnom Penh to London
Explore the most affordable flight options available from Phnom Penh to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.