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Cheap flights from Cambodia to London Heathrow Airport from £245

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — LHR
5 May — 12 May1
1 adult

Cheap flight deals from Cambodia to Heathrow

Keep the following information in mind while searching for Cambodia to Heathrow flight deals. Data was last updated 30 April 2025.

Round-trip from

£483

One-way from

£245

Popular in

April

Cheapest in

August

Average price

£980
China Eastern
  • China Eastern
  • 22/5-26/5
  • 5 total stops
  • 68h 15m total
  • Cambodia to London
Search Deals
China Eastern
  • China Eastern
  • 6/5
  • 1 total stop
  • 24h 30m total
  • Cambodia to London
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
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Find flight deals from Cambodia to Heathrow

Cheapest flights from Cambodia to Heathrow
Explore the most affordable flight options available from Cambodia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Thu 22/512:40PNH - LHR
2 stops36h 00mChina Eastern
Mon 26/521:20LHR - PNH
3 stops32h 15mChina Eastern
Deal found 29/4£483
Mon 9/612:05PNH - LHR
1 stop36h 55mChina Southern
Mon 16/622:10LHR - PNH
1 stop30h 30mChina Southern
Deal found 29/4£500
Sat 21/612:15PNH - LHR
1 stop37h 45mShenzhen Airlines
Sun 6/722:05LHR - PNH
1 stop31h 05mShenzhen Airlines
Deal found 29/4£526
Sun 8/600:20PNH - LHR
1 stop26h 10mMultiple Airlines
Mon 16/622:05LHR - PNH
1 stop31h 05mMultiple Airlines
Deal found 29/4£538
Sun 8/600:20PNH - LHR
1 stop26h 10mAir China
Mon 16/620:25LHR - PNH
2 stops32h 45mAir China
Deal found 29/4£562
Tue 13/520:50PNH - LHR
2 stops21h 35mEmirates
Thu 19/614:25LHR - PNH
2 stops20h 10mEmirates
Deal found 30/4£747
Sat 14/619:25PNH - LHR
2 stops32h 45mFinnair
Thu 10/707:30LHR - PNH
2 stops19h 05mFinnair
Deal found 29/4£762
Fri 1/818:20PNH - LHR
1 stop17h 05mBritish Airways
Sun 7/916:00LHR - PNH
2 stops18h 15mBritish Airways
Deal found 29/4£814
Mon 5/517:10PNH - LHR
1 stop29h 20mChina Airlines
Mon 19/521:10LHR - PNH
1 stop30h 40mChina Airlines
Deal found 29/4£887
Sun 4/518:20PNH - LHR
1 stop28h 15mMalaysia Airlines
Thu 22/511:00LHR - PNH
1 stop17h 00mMalaysia Airlines
Deal found 29/4£898
Sat 5/717:40PNH - LHR
2 stops26h 30mQatar Airways
Sat 26/719:25LHR - PNH
2 stops38h 50mQatar Airways
Deal found 29/4£910
Mon 9/617:45PNH - LHR
3 stops22h 45mVietnam Airlines
Mon 16/618:55LHR - PNH
2 stops36h 05mVietnam Airlines
Deal found 30/4£977

Cheapflights Fare Finder

Customise your flight search to find flights from Cambodia to Heathrow 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 30 April 2025.
Use the filters below to find and compare flights from Cambodia to London Heathrow Airport that are best for you.

Fly from

Cambodia

Fly to

Heathrow

Route

Depart

Return

Price

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Thu 22/5

12:40-18:40

2 stops36h 00m

London Heathrow

Mon 26/5

21:20-11:35

3 stops32h 15m

£483

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Mon 9/6

12:05-19:00

1 stop36h 55m

London Heathrow

Mon 16/6

22:10-10:40

1 stop30h 30m

£500

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sat 21/6

12:15-20:00

1 stop37h 45m

London Heathrow

Sun 6/7

22:05-11:10

1 stop31h 05m

£526

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sun 8/6

00:20-20:30

1 stop26h 10m

London Heathrow

Mon 16/6

22:05-11:10

1 stop31h 05m

£538

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sun 8/6

00:20-20:30

1 stop26h 10m

London Heathrow

Mon 16/6

20:25-11:10

2 stops32h 45m

£562

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Tue 13/5

20:50-12:25

2 stops21h 35m

London Heathrow

Thu 19/6

14:25-16:35

2 stops20h 10m

£747

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sat 14/6

19:25-22:10

2 stops32h 45m

London Heathrow

Thu 10/7

07:30-08:35

2 stops19h 05m

£762

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 1/8

18:20-05:25

1 stop17h 05m

London Heathrow

Sun 7/9

16:00-16:15

2 stops18h 15m

£814

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sat 5/7

17:40-14:10

2 stops26h 30m

London Heathrow

Sat 26/7

19:25-16:15

2 stops38h 50m

£910

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Mon 9/6

17:45-10:30

3 stops22h 45m

London Heathrow

Mon 16/6

18:55-13:00

2 stops36h 05m

£977

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 22 results
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Best time to book a flight from Cambodia to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Cambodia 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 Cambodia to London Heathrow Airport

What is the cheapest month to book a flight from Cambodia to London Heathrow Airport?

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

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

In terms of precipitation, rainfall in London Heathrow Airport 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 Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, 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 Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 30 April 2025.
Read through reviews of airlines operating flights from Cambodia to London, such as Singapore Airlines, Emirates and Thai Airways. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Singapore Airlines
8.1
Very Good
1,292 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Emirates
8.0
Very Good
3,215 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Thai Airways
7.7
Good
325 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Finnair
7.6
Good
1,275 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
China Southern
7.5
Good
96 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Related info for your journey

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

  • What are the cheapest airlines to fly from Cambodia to London Heathrow Airport one-way?

    The cheapet airlines for a one-way flight from Cambodia to London Heathrow Airport are China Eastern (£245), Thai Airways (£349), and Malaysia Airlines (£352).

  • Can I find deals for flights from Cambodia to Heathrow that include hotel bookings?

    Yes. In addition to deals on Cambodia to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cambodia to Heathrow?

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

  • Can I find deals for business class flights from Cambodia to Heathrow?

    Yes. Cheapflights offers flight deals from Cambodia to Heathrow 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 Cambodia to London Heathrow Airport?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Cambodia to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Cambodia to Heathrow

Discover the top airline that operate flights from Cambodia to Heathrow. 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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£483Average£578FlexibilityNo cancel feeOn-time69%
Search China Southern flights

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 Cambodia to Heathrow?

Cheapflights makes it easy to find Cambodia to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Cambodia to Heathrow?

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 Heathrow from Cambodia.

Can Cheapflights find flights from Cambodia to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Cambodia? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Cambodia to Heathrow become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Cambodia today and book when prices fit your budget.

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