Cheap flights from Cambodia to London Heathrow Airport from £326

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — LHR
3 Sep — 10 Sep1
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 29 August 2025.

Round-trip from

£455

One-way from

£326

Popular in

July

Cheapest in

November

Average price

£725
Etihad Airways
  • Etihad Airways
  • 4/10-8/10
  • 2 total stops
  • 52h 10m total
  • Cambodia to London
4/9
  • 4/9
  • 3 total stops
  • 35h 40m total
  • Cambodia to London
Highest demand for flights based on searches. 14% potential increase in price (£86 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Average for round-trip flights in August 2025

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 29 August 2025.

Sat 4/1008:30PNH - LHR
1 stop36h 45mEtihad Airways
Wed 8/1009:30LHR - PNH
1 stop15h 25mEtihad Airways
Deal found 27/8£455
Wed 29/1008:00PNH - LHR
1 stop17h 15mChina Southern
Sat 8/1121:30LHR - PNH
2 stops34h 05mChina Southern
Deal found 27/8£509
Sun 30/1111:55PNH - LHR
1 stop37h 20mChina Southern
Wed 14/122:00LHR - PNH
1 stop33h 35mChina Southern
Deal found 27/8£557
Tue 21/1008:30PNH - LHR
1 stop34h 15mEtihad Airways
Fri 24/1009:30LHR - PNH
1 stop15h 25mEtihad Airways
Deal found 27/8£564
Sat 11/1008:30PNH - LHR
1 stop34h 15mEtihad Airways
Sat 18/1020:55LHR - PNH
1 stop28h 00mEtihad Airways
Deal found 27/8£565
Fri 31/1008:00PNH - LHR
1 stop17h 15mChina Southern
Sun 9/1122:00LHR - PNH
1 stop18h 30mChina Southern
Deal found 27/8£572
Sat 25/1008:30PNH - LHR
1 stop29h 10mEtihad Airways
Wed 29/1008:50LHR - PNH
1 stop14h 40mEtihad Airways
Deal found 27/8£580
Fri 19/1207:55PNH - LHR
1 stop37h 35mEtihad Airways
Fri 2/113:55LHR - PNH
1 stop21h 30mEtihad Airways
Deal found 28/8£625
Fri 31/1008:00PNH - LHR
1 stop17h 15mMultiple Airlines
Sun 9/1115:05LHR - PNH
2 stops36h 45mMultiple Airlines
Deal found 27/8£659

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 29 August 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

Sat 4/10

08:30-15:15

1 stop36h 45m

London Heathrow

Wed 8/10

09:30-06:55

1 stop15h 25m

£455

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Wed 29/10

08:00-18:15

1 stop17h 15m

London Heathrow

Sat 8/11

21:30-14:35

2 stops34h 05m

£509

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sun 30/11

11:55-18:15

1 stop37h 20m

London Heathrow

Wed 14/1

22:00-14:35

1 stop33h 35m

£557

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Tue 21/10

08:30-12:45

1 stop34h 15m

London Heathrow

Fri 24/10

09:30-06:55

1 stop15h 25m

£564

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sat 11/10

08:30-12:45

1 stop34h 15m

London Heathrow

Sat 18/10

20:55-06:55

1 stop28h 00m

£565

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 31/10

08:00-18:15

1 stop17h 15m

London Heathrow

Sun 9/11

22:00-23:30

1 stop18h 30m

£572

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sat 25/10

08:30-07:40

1 stop29h 10m

London Heathrow

Wed 29/10

08:50-06:30

1 stop14h 40m

£580

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 19/12

07:55-18:10

1 stop17h 15m

London Heathrow

Fri 2/1

08:50-18:25

1 stop26h 35m

£625

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Thu 4/9

13:50-19:30

3 stops35h 40m

£326

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Mon 15/9

13:55-15:15

2 stops31h 20m

£362

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 16 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.

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.
  • How long is the flight from Cambodia to London Heathrow Airport?

    There are many flights that can get you from Cambodia to London Heathrow Airport in 17h 15m. Fly via Etihad Airways or China Southern to get the fastest option. There are 6232 mi between Cambodia and London Heathrow Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Chichester
Winchester
Eastbourne
Swindon
Dartford

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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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