How long is the flight from Phnom Penh to United Kingdom?

For as low as £968, China Southern can have you in United Kingdom from Phnom Penh in 19h 55m. There are 6210 mi between Phnom Penh and United Kingdom. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to fly from Phnom Penh to United Kingdom one-way?

To fly one-way, consider booking your trip with China Southern, which is currently one of the cheapest options available, starting at £210. China Eastern flights start at £241 while deals on Air China start at £258 one-way.

In terms of precipitation, rainfall in United Kingdom ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit United Kingdom when rainfall is around 40.0 mm.

If weather is an important factor for your trip to United Kingdom, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Phnom Penh to United Kingdom?

The most popular flight routes from Phnom Penh to United Kingdom are Phnom Penh Pochentong - London Gatwick, Phnom Penh Pochentong - London Heathrow and Phnom Penh Pochentong - London Stansted.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 45 days in advance, which can save you up to 19% on flights from Phnom Penh to United Kingdom compared to booking the week you need them. Waiting 45 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £567. For sooner than that we have options available in the next 3 days from £567.

What is the cheapest month to fly from Phnom Penh to United Kingdom?

Our data shows that November tends to be the cheapest month to fly to United Kingdom from Phnom Penh. Users have commonly found prices around £693 for the month, but tickets can be as low as £452. Due to multiple factors, prepare for potentially higher prices in July.

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

Most people fly from Phnom Penh Pochentong (PNH) if they book a flight from Phnom Penh to United Kingdom. Phnom Penh Pochentong is conveniently located just 5.0 mi from Phnom Penh’s city center.

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

Yes. In addition to deals on Phnom Penh to United Kingdom flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Phnom Penh to United Kingdom?

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

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

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

£210+ Cheap Flights from Phnom Penh to the United Kingdom

Cheap flight deals from Phnom Penh to United Kingdom

Round-trip from	£570
One-way from	£210
Popular in	July
Cheapest in	November
Average price	£725

China Southern
19/12-2/1
3 total stops
67h 40m total
Phnom Penh to United Kingdom

Search Deals

China Southern
20/12
1 total stop
17h 15m total
Phnom Penh to United Kingdom

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (£85 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Phnom Penh to United Kingdom

Cheapest flights from Phnom Penh to United Kingdom
Explore the most affordable flight options available from Phnom Penh to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2025.

Sun 24/812:40PNH - LGW

2 stops32h 30mChina Eastern

Fri 29/811:35LGW - PNH

1 stop29h 40mChina Eastern

Deal found 18/8£547

Fri 19/1211:55PNH - LHR

1 stop37h 20mChina Southern

Fri 2/121:30LHR - PNH

2 stops30h 20mChina Southern

Deal found 18/8£570

Sat 23/800:10PNH - LHR

1 stop24h 30mChina Eastern

Fri 29/821:20LHR - PNH

1 stop19h 55mChina Eastern

Deal found 18/8£573

Sun 24/800:10PNH - LHR

1 stop24h 30mChina Eastern

Mon 1/921:20LHR - PNH

1 stop19h 55mChina Eastern

Deal found 19/8£578

Sun 24/800:10PNH - LGW

1 stop21h 00mChina Eastern

Mon 1/911:35LGW - PNH

1 stop29h 40mChina Eastern

Deal found 19/8£585

Wed 10/1208:00PNH - LHR

1 stop17h 15mChina Southern

Wed 24/1221:30LHR - PNH

2 stops30h 20mChina Southern

Deal found 18/8£595

Mon 25/812:05PNH - LHR

2 stops58h 10mChina Southern

Mon 1/922:10LHR - PNH

1 stop34h 20mChina Southern

Deal found 19/8£609

Tue 9/1211:55PNH - LHR

2 stops61h 00mChina Southern

Tue 23/1222:00LHR - PNH

1 stop18h 30mChina Southern

Deal found 18/8£614

Mon 15/915:35PNH - LGW

2 stops32h 55mChina Southern

Mon 22/912:00LGW - PNH

1 stop16h 40mChina Southern

Deal found 17/8£617

Sat 23/800:10PNH - LGW

1 stop21h 50mChina Eastern

Sat 30/818:00LGW - PNH

1 stop23h 15mChina Eastern

Deal found 19/8£632

Sun 14/900:20PNH - LGW

1 stop36h 15mAir China

Mon 22/912:35LGW - PNH

1 stop28h 30mAir China

Deal found 17/8£638

Mon 29/1208:00PNH - LHR

1 stop17h 15mChina Southern

Tue 30/1222:00LHR - PNH

1 stop18h 30mChina Southern

Deal found 19/8£645

Best flights from Phnom Penh to United Kingdom
Discover carefully curated flight deals from Phnom Penh to United Kingdom that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2025.

Fri 19/1211:55PNH - LHR

1 stop37h 20mChina Southern

Fri 2/121:30LHR - PNH

2 stops30h 20mChina Southern

Deal found 18/8£570

Sun 14/900:20PNH - LGW

1 stop36h 15mAir China

Mon 22/912:35LGW - PNH

1 stop28h 30mAir China

Deal found 17/8£638

Mon 15/909:10PNH - STN

3 stops36h 55mMultiple Airlines

Mon 22/907:30STN - PNH

3 stops24h 50mMultiple Airlines

Deal found 17/8£650

Mon 15/920:50PNH - STN

1 stop22h 05mEmirates

Mon 22/914:55STN - PNH

1 stop19h 40mEmirates

Deal found 17/8£931

Mon 15/918:55PNH - LCY

2 stops19h 55mSWISS

Mon 22/908:10LCY - PNH

2 stops42h 30mSWISS

Deal found 17/8£968

Tue 9/1208:00PNH - LHR

1 stop17h 15mChina Southern

Tue 23/1222:00LHR - PNH

1 stop18h 30mChina Southern

Deal found 18/8£581

Wed 10/1208:00PNH - LHR

1 stop17h 15mChina Southern

Wed 24/1221:30LHR - PNH

2 stops30h 20mChina Southern

Deal found 18/8£595

Sun 14/900:20PNH - LHR

1 stop26h 10mAir China

Mon 22/922:40LHR - PNH

1 stop18h 25mAir China

Deal found 17/8£669

Mon 15/909:10PNH - LGW

3 stops35h 15mMultiple Airlines

Mon 22/911:15LGW - PNH

2 stops29h 50mMultiple Airlines

Deal found 17/8£681

Mon 15/915:35PNH - LGW

2 stops32h 55mChina Southern

Mon 22/912:00LGW - PNH

1 stop16h 40mChina Southern

Deal found 17/8£617

Thu 2/1009:50PNH - LGW

2 stops32h 45mMultiple Airlines

Thu 9/1014:30LGW - PNH

2 stops23h 15mMultiple Airlines

Deal found 18/8£687

Sun 7/915:35PNH - STN

2 stops25h 40mMultiple Airlines

Sat 13/907:30STN - PNH

3 stops33h 00mMultiple Airlines

Deal found 18/8£688

Last-minute flights from Phnom Penh to United Kingdom
Discover last-minute flight deals from Phnom Penh to United Kingdom. Data last updated 20 August 2025 and is based on user searches.

Sat 23/800:10PNH - LGW

1 stop21h 50mChina Eastern

Sat 30/818:00LGW - PNH

1 stop23h 15mChina Eastern

Deal found 19/8£632

Sun 24/812:40PNH - LGW

2 stops32h 30mChina Eastern

Fri 29/811:35LGW - PNH

1 stop29h 40mChina Eastern

Deal found 18/8£547

Sun 24/800:10PNH - LHR

1 stop24h 30mChina Eastern

Mon 1/921:20LHR - PNH

1 stop19h 55mChina Eastern

Deal found 19/8£578

Sun 24/800:10PNH - LGW

1 stop21h 00mChina Eastern

Mon 1/911:35LGW - PNH

1 stop29h 40mChina Eastern

Deal found 19/8£585

Sun 24/812:40PNH - LGW

3 stops32h 30mMultiple Airlines

Fri 29/811:15LGW - PNH

2 stops41h 55mMultiple Airlines

Deal found 18/8£661

Sun 24/815:35PNH - LGW

1 stop21h 15mChina Southern

Sat 30/821:30LGW - PNH

2 stops44h 40mChina Southern

Deal found 19/8£676

Mon 25/812:05PNH - LHR

2 stops58h 10mChina Southern

Mon 1/922:10LHR - PNH

1 stop34h 20mChina Southern

Deal found 19/8£609

Mon 25/808:00PNH - MAN

2 stops20h 40mMultiple Airlines

Sun 12/1019:50MAN - PNH

2 stops46h 20mMultiple Airlines

Deal found 19/8£838

Tue 26/807:45PNH - MAN

2 stops29h 05mMultiple Airlines

Mon 13/1009:15MAN - PNH

1 stop15h 40mMultiple Airlines

Deal found 19/8£832

Sun 14/900:20PNH - LGW

1 stop36h 15mAir China

Mon 22/912:35LGW - PNH

1 stop28h 30mAir China

Deal found 17/8£638

Mon 15/915:35PNH - LGW

2 stops32h 55mChina Southern

Mon 22/912:00LGW - PNH

1 stop16h 40mChina Southern

Deal found 17/8£617

Mon 15/909:10PNH - LGW

3 stops35h 15mMultiple Airlines

Mon 22/911:15LGW - PNH

2 stops29h 50mMultiple Airlines

Deal found 17/8£681

One-way flights from Phnom Penh to United Kingdom
Search for one-way flight options from Phnom Penh to United Kingdom. Find affordable one-way fares based on user searches. Data last updated 20 August 2025.

Sat 20/1208:00PNH - LHR

1 stop17h 15mChina Southern

Deal found 17/8£210

Wed 3/900:10PNH - LHR

1 stop24h 30mChina Eastern

Deal found 17/8£241

Sat 6/900:10PNH - LGW

1 stop21h 50mChina Eastern

Deal found 17/8£250

Thu 4/900:10PNH - LHR

1 stop24h 30mChina Eastern

Deal found 17/8£253

Thu 23/1000:20PNH - LGW

1 stop36h 15mAir China

Deal found 18/8£258

Sun 7/912:05PNH - LHR

1 stop36h 55mChina Southern

Deal found 17/8£264

Fri 24/1023:50PNH - LHR

2 stops26h 10mMultiple Airlines

Deal found 18/8£273

Sun 7/919:10PNH - STN

3 stops50h 55mMultiple Airlines

Deal found 17/8£293

Sun 7/919:10PNH - LHR

2 stops29h 30mMultiple Airlines

Deal found 17/8£293

Sun 24/800:10PNH - LHR

1 stop24h 30mChina Eastern

Deal found 19/8£304

Tue 2/920:50PNH - LHR

2 stops28h 40mMultiple Airlines

Deal found 17/8£310

Fri 5/909:10PNH - STN

3 stops36h 55mMultiple Airlines

Deal found 17/8£310

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 19/12

11:55-18:15

1 stop37h 20m

London Heathrow

Fri 2/1

21:30-10:50

2 stops30h 20m

£570

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Tue 9/12

08:00-18:15

1 stop17h 15m

London Heathrow

Tue 23/12

22:00-23:30

1 stop18h 30m

£581

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Wed 10/12

08:00-18:15

1 stop17h 15m

London Heathrow

Wed 24/12

21:30-10:50

2 stops30h 20m

£595

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Mon 15/9

15:35-18:30

2 stops32h 55m

London Gatwick

Mon 22/9

12:00-10:40

1 stop16h 40m

£617

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Sun 14/9

00:20-06:35

1 stop36h 15m

London Gatwick

Mon 22/9

12:35-23:05

1 stop28h 30m

£638

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Mon 29/12

08:00-18:15

1 stop17h 15m

London Heathrow

Tue 30/12

22:00-23:30

1 stop18h 30m

£645

Phnom PenhLondon

PNH - STN

PNHSTN

Phnom Penh Pochentong

Mon 15/9

09:10-16:05

3 stops36h 55m

London Stansted

Mon 22/9

07:30-14:20

3 stops24h 50m

£650

Phnom PenhManchester

PNH - MAN

PNHMAN

Phnom Penh Pochentong

Fri 3/10

15:35-22:45

2 stops37h 10m

Manchester

Fri 24/10

10:30-00:10

2 stops31h 40m

£658

Phnom PenhManchester

PNH - MAN

PNHMAN

Phnom Penh Pochentong

Mon 1/9

15:35-22:35

2 stops37h 00m

Manchester

Sun 19/10

10:35-10:40

2 stops42h 05m

£661

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sun 14/9

00:20-20:30

1 stop26h 10m

London Heathrow

Mon 22/9

22:40-23:05

1 stop18h 25m

£669

Flights are sorted by cheapest return flights first.

Deals found on 17/8

Showing 1-10 of 60 results

...

Best time to book a flight from Phnom Penh to United Kingdom

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

Estimated return 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 the United Kingdom

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

Currently, January is the cheapest month in which you can book a flight from Phnom Penh to United Kingdom (average of £112). Flying from Phnom Penh to United Kingdom in August is currently the most expensive (average of £164). 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 GB?

When flying from Phnom Penh to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing United Kingdom

Check out reviews from past customers who have flown with China Southern and China Eastern from Phnom Penh to the United Kingdom to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

China Southern

7.5

Good

108 reviews

Check prices

Reviews

1 / 4

8.0

Excellent

Peggy,Jul 2025

WUH - SFO

Overall it's good, room temperature is a little high in the airport.

China Southern

7.5

Good

108 reviews

China Southern

7.5

Good

108 reviews

Check prices

Reviews

1 / 4

8.0

Excellent

Peggy,Jul 2025

WUH - SFO

Overall it's good, room temperature is a little high in the airport.

China Eastern

7.2

Good

160 reviews

China Southern

7.5

Good

108 reviews

Check prices

Reviews

1 / 4

8.0

Excellent

Peggy,Jul 2025

WUH - SFO

Overall it's good, room temperature is a little high in the airport.

Related info for your journey

What airport do you fly from for flights from Phnom Penh to United Kingdom?
Most people fly from Phnom Penh Pochentong (PNH) if they book a flight from Phnom Penh to United Kingdom. Phnom Penh Pochentong is conveniently located just 5.0 mi from Phnom Penh’s city center.
How long is the flight from Phnom Penh to United Kingdom?
For as low as £968, China Southern can have you in United Kingdom from Phnom Penh in 19h 55m. There are 6210 mi between Phnom Penh and United Kingdom. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from Phnom Penh to United Kingdom one-way?
To fly one-way, consider booking your trip with China Southern, which is currently one of the cheapest options available, starting at £210. China Eastern flights start at £241 while deals on Air China start at £258 one-way.
What are the most popular routes from Phnom Penh to United Kingdom?
The most popular flight routes from Phnom Penh to United Kingdom are Phnom Penh Pochentong - London Gatwick, Phnom Penh Pochentong - London Heathrow and Phnom Penh Pochentong - London Stansted.
Can I find deals for flights from Phnom Penh to United Kingdom that include hotel bookings?
Yes. In addition to deals on Phnom Penh to United Kingdom flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Phnom Penh to United Kingdom?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phnom Penh to United Kingdom.
Can I find deals for business class flights from Phnom Penh to United Kingdom?
Yes. Cheapflights offers flight deals from Phnom Penh to United Kingdom 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 United Kingdom?
Currently, January is the cheapest month in which you can book a flight from Phnom Penh to United Kingdom (average of £112). Flying from Phnom Penh to United Kingdom in August is currently the most expensive (average of £164). 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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How does Cheapflights help users find flights from Phnom Penh to United Kingdom?

When you search for this flight from Phnom Penh to United Kingdom, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Phnom Penh to United Kingdom?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Phnom Penh to United Kingdom.

Can Cheapflights find flights from Phnom Penh to United Kingdom with no change fees?

Yes! Cheapflights helps users easily find flights from Phnom Penh to United Kingdom with no change fees.

Can Cheapflights notify me if prices for flights from Phnom Penh to United Kingdom become cheaper?

Of course! You can now track prices for flights from Phnom Penh to United Kingdom and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Phnom Penh to the United Kingdom from £210

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Phnom Penh to United Kingdom

Keep the following information in mind while searching for Phnom Penh to United Kingdom flight deals. Data was last updated 20 August 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Phnom Penh to United Kingdom

Cheapest flights from Phnom Penh to United KingdomExplore the most affordable flight options available from Phnom Penh to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2025.

Explore the most affordable flight options available from Phnom Penh to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Phnom Penh to United Kingdom

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

Cheapflights Insights

Everything you need to know about your flight from Phnom Penh to the United Kingdom

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

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

Find hourly flight availability from Phnom Penh to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 August 2025.

Reviews of airlines servicing United Kingdom

Check out reviews from past customers who have flown with China Southern and China Eastern from Phnom Penh to the United Kingdom to help guide your decision. You can also see how each airline stacks up 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 United Kingdom. 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 United Kingdom?

How long is the flight from Phnom Penh to United Kingdom?

What are the cheapest airlines to fly from Phnom Penh to United Kingdom one-way?

What are the most popular routes from Phnom Penh to United Kingdom?

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

How can I find direct flights from Phnom Penh to United Kingdom?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Phnom Penh to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Phnom Penh to United Kingdom?

Why should you use Cheapflights to find cheap flight tickets from Phnom Penh to United Kingdom?

Can Cheapflights find flights from Phnom Penh to United Kingdom with no change fees?

Can Cheapflights notify me if prices for flights from Phnom Penh to United Kingdom become cheaper?

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Cheapest flights from Phnom Penh to United Kingdom
Explore the most affordable flight options available from Phnom Penh to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2025.