London

$333+ Cheap flights from Phnom Penh (PNH) to London (LON)

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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — LON
jun. 17 — jun. 241
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Cheapflights Tip: The best prices from Phnom Penh Pochentong to London are usually found in November or August, booked 45 days in advance, depart on a Saturday or Thursday and return on a Monday

Cheap flight deals from Phnom Penh to London

Discover tips and strategies to find the most affordable flight options for your journey from Phnom Penh (PNH) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 12, 2025.

Round-trip from

$720
(FlightHub)

One-way from

$333
(Trip.com)

Popular in

July

Cheapest in

November

Average price

$1,018
From Phnom Penh Pochentong to London (LON)
One-way flight from Phnom Penh Pochentong to London (LON)
Highest demand for flights based on searches. 9% potential increase in price ($94 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
Average for round-trip flights in June 2025

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 junio 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/112:40 pmPNH - LGW
3 stops32h 20mChina Eastern
vie. 7/1111:35 amLGW - PNH
1 stop29h 40mChina Eastern
Deal found 6/10$720
This China Southern deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Southern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/43:35 pmPNH - LHR
1 stop33h 25mChina Southern
lun. 9/810:10 pmLHR - PNH
1 stop20h 00mChina Southern
Deal found 6/10$780
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/2812:20 amPNH - LHR
1 stop26h 10mMultiple Airlines
dom. 7/138:25 pmLHR - PNH
2 stops32h 45mMultiple Airlines
Deal found 6/10$802
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/3112:10 amPNH - LHR
1 stop24h 30mChina Eastern
dom. 9/79:20 pmLHR - PNH
1 stop19h 55mChina Eastern
Deal found 6/10$816
This Air China deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/2912:15 pmPNH - LHR
2 stops38h 15mAir China
dom. 7/138:25 pmLHR - PNH
2 stops32h 45mAir China
Deal found 6/10$831
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/312:40 pmPNH - LGW
3 stops32h 30mMultiple Airlines
dom. 8/179:50 pmLGW - PNH
2 stops28h 45mMultiple Airlines
Deal found 6/10$899
This Emirates deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/58:50 pmPNH - STN
2 stops22h 05mEmirates
lun. 9/12:55 pmSTN - PNH
2 stops19h 40mEmirates
Deal found 6/10$924
This Emirates deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/58:50 pmPNH - LGW
2 stops21h 45mEmirates
sáb. 9/610:05 amLGW - PNH
2 stops24h 30mEmirates
Deal found 6/10$931
This CheapOair deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/93:35 pmPNH - LGW
1 stop21h 30mChina Southern
jue. 8/2112:00 pmLGW - PNH
1 stop16h 40mChina Southern
Deal found 6/12$937
This SmartFares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/912:15 pmPNH - LHR
1 stop37h 45mShenzhen Airlines
dom. 11/99:10 pmLHR - PNH
1 stop31h 05mShenzhen Airlines
Deal found 6/11$938
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/79:50 amPNH - STN
3 stops38h 10mMultiple Airlines
lun. 7/142:15 pmSTN - PNH
3 stops33h 55mMultiple Airlines
Deal found 6/10$956
This Emirates deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/98:50 pmPNH - LHR
2 stops29h 25mEmirates
jue. 8/214:50 pmLHR - PNH
2 stops41h 45mEmirates
Deal found 6/12$979

Cheapflights Fare Finder

Customize your flight search to find flights from Phnom Penh to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
Use the filters below to find and compare flights from Phnom Penh to London that are best for you.

Fly from

Phnom Penh

Fly to

London

Route

Depart

Return

Price

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

mar. 7/1

12:40 pm-3:00 pm

3 stops32h 20m

London Gatwick

vie. 7/11

11:35 am-11:15 pm

1 stop29h 40m

$720

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

lun. 8/4

3:35 pm-7:00 pm

1 stop33h 25m

London Heathrow

lun. 9/8

10:10 pm-12:10 am

1 stop20h 00m

$780

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

sáb. 6/28

12:20 am-8:30 pm

1 stop26h 10m

London Heathrow

dom. 7/13

8:25 pm-11:10 am

2 stops32h 45m

$802

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

jue. 7/31

12:10 am-6:40 pm

1 stop24h 30m

London Heathrow

dom. 9/7

9:20 pm-11:15 pm

1 stop19h 55m

$816

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

dom. 6/29

12:15 pm-8:30 pm

2 stops38h 15m

London Heathrow

dom. 7/13

8:25 pm-11:10 am

2 stops32h 45m

$831

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

dom. 8/3

12:40 pm-3:10 pm

3 stops32h 30m

London Gatwick

dom. 8/17

9:50 pm-8:35 am

2 stops28h 45m

$899

Phnom PenhLondon

PNH - STN

PNHSTN

Phnom Penh Pochentong

mar. 8/5

8:50 pm-12:55 pm

2 stops22h 05m

London Stansted

lun. 9/1

2:55 pm-4:35 pm

2 stops19h 40m

$924

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

mar. 8/5

8:50 pm-12:35 pm

2 stops21h 45m

London Gatwick

sáb. 9/6

10:05 am-4:35 pm

2 stops24h 30m

$931

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

mié. 7/9

3:35 pm-7:05 am

1 stop21h 30m

London Gatwick

jue. 8/21

12:00 pm-10:40 am

1 stop16h 40m

$937

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

mar. 9/9

12:15 pm-8:00 pm

1 stop37h 45m

London Heathrow

dom. 11/9

9:10 pm-11:15 am

1 stop31h 05m

$938

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 50 results
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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?

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 June 9, 2025.

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 $1,108). 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?

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 junio 12, 2025.

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.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

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.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated junio 12, 2025.
Peruse reviews from past customers who have flown with China Airlines, Asiana Airlines and Emirates from Phnom Penh to London 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.

Food

7.8

Entertainment

8.0

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

Food

7.8

Entertainment

8.0

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

Food

7.8

Entertainment

8.0

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

Food

7.8

Entertainment

8.0

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

Food

7.8

Entertainment

8.0

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

Food

7.8

Entertainment

8.0

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

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?

    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. 8 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.

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

    According to our current data, China Eastern ($720), China Southern ($780), and Air China ($831) offers the cheapest pricing from Phnom Penh to London. These flights start at 22% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Phnom Penh to London one-way?

    For one-way options, check prices for China Eastern. According to our data, you can fly for as low as $333. Users have also found prices from $333 and $340 on China Southern and Air China, respectively.

  • 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?

    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 $1,108). 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.

See more FAQs

Traveling to a place near Phnom Penh?

Book flights to Phnom Penh if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Gatwick
Orpington
Watford
Croydon
Folkestone
Borehamwood
Sutton
Aylesbury
Chelmsford
Brentwood
Chichester
Wembley
Arundel

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Phnom Penh to London

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

Top 8 airlines flying from Phnom Penh to London

Discover the top 8 airlines that operate flights from Phnom Penh to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$633Average$863FlexibilityNo cancel feeOn-time62%
China SouthernCheapest$638Average$753FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$706Average$930FlexibilityNo cancel feeOn-time67%
Malaysia AirlinesCheapest$865Average$1,397FlexibilityNo cancel feeOn-time67%
Singapore AirlinesCheapest$921Average$1,273FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$958Average$1,591FlexibilityNo cancel feeOn-time70%
Qatar AirwaysCheapest$968Average$1,562FlexibilityNo cancel feeOn-time68%
Thai AirwaysCheapest$1,103Average$1,299FlexibilityNo cancel feeOn-time77%

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