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Cheap flights from Phnom Penh to London from £223

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — LON
30 Mar — 6 Apr1
1 adult

Cheapflights Tip: The best prices from Phnom Penh Pochentong to London are usually found in August or November, booked 75 days in advance, depart on a Sunday or Friday 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 25 March 2025.

Round-trip from

£451

One-way from

£223

Popular in

July

Cheapest in

August

Average price

£597
China Eastern
  • China Eastern
  • 8/4-22/4
  • 4 total stops
  • 67h 55m total
  • Phnom Penh to London
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China Eastern
  • China Eastern
  • 8/4
  • 2 total stops
  • 36h 00m total
  • Phnom Penh to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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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 25 March 2025.

Tue 8/412:40PNH - LGW
3 stops32h 20mChina Eastern
Tue 22/418:00LGW - PNH
2 stops35h 35mChina Eastern
Deal found 24/3£451
Sun 4/500:10PNH - LHR
1 stop24h 30mChina Eastern
Wed 28/521:20LHR - PNH
1 stop19h 55mChina Eastern
Deal found 25/3£526
Tue 8/408:00PNH - LHR
2 stops38h 15mChina Southern
Tue 22/422:10LHR - PNH
1 stop34h 20mChina Southern
Deal found 24/3£535
Sun 6/412:15PNH - LHR
1 stop37h 35mShenzhen Airlines
Sat 3/522:05LHR - PNH
1 stop31h 05mShenzhen Airlines
Deal found 25/3£538
Sat 5/400:20PNH - LHR
1 stop26h 10mMultiple Airlines
Sat 3/522:05LHR - PNH
1 stop31h 05mMultiple Airlines
Deal found 25/3£555
Thu 8/512:40PNH - LGW
3 stops24h 00mMultiple Airlines
Thu 15/515:00LGW - PNH
2 stops21h 15mMultiple Airlines
Deal found 24/3£593
Tue 6/512:15PNH - LGW
2 stops48h 40mAir China
Mon 19/511:15LGW - PNH
2 stops41h 55mAir China
Deal found 25/3£602
Mon 5/511:10PNH - LHR
1 stop35h 25mMalaysia Airlines
Mon 19/511:00LHR - PNH
1 stop24h 25mMalaysia Airlines
Deal found 24/3£637
Sun 6/421:55PNH - STN
3 stops31h 55mMultiple Airlines
Sat 3/507:55STN - PNH
3 stops31h 00mMultiple Airlines
Deal found 25/3£663
Sat 10/520:50PNH - STN
2 stops22h 05mEmirates
Wed 14/514:55STN - PNH
2 stops19h 40mEmirates
Deal found 25/3£735
Sun 6/420:50PNH - LGW
2 stops21h 45mEmirates
Sat 3/510:05LGW - PNH
2 stops24h 30mEmirates
Deal found 25/3£738
Tue 6/512:15PNH - LHR
2 stops62h 00mAir China
Wed 21/520:25LHR - PNH
2 stops56h 45mAir China
Deal found 25/3£740

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 25 March 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

Tue 8/4

12:40-15:00

2 stops32h 20m

London Gatwick

Tue 22/4

18:00-11:35

2 stops35h 35m

£451

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sun 4/5

00:10-18:40

1 stop24h 30m

London Heathrow

Wed 28/5

21:20-23:15

1 stop19h 55m

£526

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Tue 8/4

08:00-16:15

2 stops38h 15m

London Heathrow

Tue 22/4

22:10-14:30

1 stop34h 20m

£535

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sun 6/4

12:15-19:50

1 stop37h 35m

London Heathrow

Sat 3/5

22:05-11:10

1 stop31h 05m

£538

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sat 5/4

00:20-20:30

1 stop26h 10m

London Heathrow

Sat 3/5

22:05-11:10

1 stop31h 05m

£555

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 8/5

12:40-15:10

2 stops32h 30m

London Gatwick

Thu 15/5

15:00-18:15

2 stops21h 15m

£593

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Tue 6/5

12:15-06:55

2 stops48h 40m

London Gatwick

Mon 19/5

11:15-11:10

2 stops41h 55m

£602

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Mon 5/5

11:10-16:35

1 stop35h 25m

London Heathrow

Mon 19/5

11:00-17:25

1 stop24h 25m

£637

Phnom PenhLondon

PNH - STN

PNHSTN

Phnom Penh Pochentong

Sun 6/4

21:55-23:50

3 stops31h 55m

London Stansted

Sat 3/5

07:55-20:55

3 stops31h 00m

£663

Phnom PenhLondon

PNH - STN

PNHSTN

Phnom Penh Pochentong

Sat 10/5

20:50-12:55

2 stops22h 05m

London Stansted

Wed 14/5

14:55-16:35

2 stops19h 40m

£735

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 47 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 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 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 return flight from Phnom Penh to London. Price data was last updated on 21 March 2025.

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phnom Penh to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Phnom Penh to London (average of £112). Flying from Phnom Penh to London 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.

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 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 London when rainfall is around 40.0 mm.

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 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).

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 25 March 2025.
See what other customers who have flown with China Airlines, Singapore Airlines and Emirates from Phnom Penh to London have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Entertainment

8.0

Overall

8.2

Food

7.8

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
China Airlines
8.2
Very Good
722 reviews
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Entertainment

8.0

Overall

8.2

Food

7.8

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Singapore Airlines
8.1
Very Good
1,284 reviews
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Entertainment

8.0

Overall

8.2

Food

7.8

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Emirates
8.0
Very Good
3,190 reviews
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Entertainment

8.0

Overall

8.2

Food

7.8

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
KLM
7.8
Good
1,318 reviews
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Entertainment

8.0

Overall

8.2

Food

7.8

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Thai Airways
7.8
Good
316 reviews
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Entertainment

8.0

Overall

8.2

Food

7.8

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

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) is the airport you will fly out of if you book a flight from Phnom Penh to London. You should not have trouble finding flights to London from Pochentong; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Phnom Penh airport to London. It is only a 5.0 mi journey to Pochentong (PNH) from Phnom Penh’s city center.

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

    China Eastern, at £451, was found to be the cheapest airline from Phnom Penh to London.Alternate airlines flying return to your destination include China Southern and Shenzhen Airlines. China Eastern is currently priced 38% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is China Eastern, with whom users have recently found tickets for as low as £223. However, be on the lookout for offers from Shenzhen Airlines and Air China, as they are both options that can get you from Phnom Penh to London for a low price.

  • 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 Stansted or Phnom Penh Pochentong - London Gatwick 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 holiday 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, January is the cheapest month in which you can book a flight from Phnom Penh to London (average of £112). Flying from Phnom Penh to London 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.

See more FAQs

Travelling to a place near Phnom Penh?

Book flights to Phnom Penh if you plan to visit one of these locations
Hounslow
Deal
Milton Keynes
Gatwick
Croydon
Luton
Slough
Eastbourne
Wembley
Hayes
Ilford
Crawley
Southend-on-Sea
Winchester
Maidstone
Ipswich
Watford
Southall
Dartford
Folkestone

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.
Phnom Penh to Heathrow flights
Phnom Penh to Gatwick flights
Phnom Penh to Manchester flights
Phnom Penh to Edinburgh flights
Phnom Penh to Birmingham flights

Top airline flying from Phnom Penh to London

Discover the top airline 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 858,174 searches. Data last updated 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£501Average£614FlexibilityNo cancel feeOn-time69%
Search China Southern flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from Phnom Penh today with Cheapflights!

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Phnom Penh.

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

Yes, we can. To see specific flights from Phnom Penh to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Phnom Penh to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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