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.

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.

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).

How far in advance should I book a flight from Cambodia to London Heathrow Airport?

To save up to 19% on this flight, we recommend booking at least 45 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Cambodia to London Heathrow Airport from £566 1-2 weeks out and tickets from £566 for flights departing within the next 72 hours.

What is the cheapest month to fly from Cambodia to London Heathrow Airport?

November can be a great time to fly to London Heathrow Airport from Cambodia with a flight ticket averaging about £692. Cheapflights users have found deals in the month of November for as cheap as £452. The most expensive prices can be found in the month of July.

What is the cheapest time of day to fly from KH to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cambodia to London Heathrow Airport as you normally would.

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.

£326+ Flights from Cambodia to London Heathrow Airport

Cheap flight deals from Cambodia to Heathrow

Round-trip from	£455
One-way from	£326
Popular in	July
Cheapest in	November
Average price	£725

Etihad Airways
4/10-8/10
2 total stops
52h 10m total
Cambodia to London

Search Deals

4/9
3 total stops
35h 40m total
Cambodia to London

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (£86 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 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

Best flights from Cambodia to Heathrow
Discover carefully curated flight deals from Cambodia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 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 stop17h 15mEtihad Airways

Fri 2/108:50LHR - PNH

1 stop26h 35mEtihad Airways

Deal found 27/8£625

Last-minute flights from Cambodia to Heathrow
Discover last-minute flight deals from Cambodia to Heathrow. Data last updated 29 August 2025 and is based on user searches.

Sun 31/813:50PNH - LHR

3 stops35h 40mMultiple Airlines

Sat 6/922:05LHR - PNH

1 stop31h 05mMultiple Airlines

Deal found 27/8£825

Thu 4/919:25PNH - LHR

2 stops29h 20mEtihad Airways

Sat 13/1213:55LHR - PNH

1 stop33h 35mEtihad Airways

Deal found 27/8£781

Sun 7/919:10PNH - LHR

2 stops28h 35mMultiple Airlines

Mon 22/922:05LHR - PNH

1 stop31h 05mMultiple Airlines

Deal found 27/8£685

Sun 7/915:35PNH - LHR

1 stop33h 25mChina Southern

Mon 22/922:10LHR - PNH

1 stop34h 20mChina Southern

Deal found 27/8£690

Wed 24/920:50PNH - LHR

1 stop23h 35mMultiple Airlines

Wed 15/1022:00LHR - PNH

2 stops23h 30mMultiple Airlines

Deal found 28/8£794

One-way flights from Cambodia to Heathrow
Search for one-way flight options from Cambodia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 29 August 2025.

Thu 4/913:50PNH - LHR

3 stops35h 40mMultiple Airlines

Deal found 27/8£326

Mon 15/913:55PNH - LHR

2 stops31h 20mMultiple Airlines

Deal found 29/8£362

Mon 17/1108:00PNH - LHR

2 stops19h 50mMultiple Airlines

Deal found 27/8£363

Sun 14/913:55PNH - LHR

2 stops28h 50mMultiple Airlines

Deal found 29/8£366

Sat 10/119:50PNH - LHR

2 stops25h 35mMultiple Airlines

Deal found 27/8£369

Mon 15/1219:15PNH - LHR

2 stops32h 50mTurkish Airlines

Deal found 27/8£372

Fri 9/107:55PNH - LHR

2 stops37h 30mMultiple Airlines

Deal found 27/8£379

Mon 15/1219:15PNH - LHR

3 stops24h 45mMultiple Airlines

Deal found 28/8£392

Thu 4/907:00PNH - LHR

1 stop15h 55mCambodia Angkor Air

Deal found 27/8£405

Mon 29/1219:15PNH - LHR

3 stops26h 10mMultiple Airlines

Deal found 27/8£408

Mon 29/1207:55PNH - LHR

1 stop29h 45mEtihad Airways

Deal found 27/8£420

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cambodia to London Heathrow Airport that are best for you.

Fly from

Fly to

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

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

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

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Slough

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Deal

Wembley

Ilford

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Hayes

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Winchester

Eastbourne

Swindon

Dartford

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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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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.

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

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Cambodia to Heathrow

Cheapest flights from Cambodia to HeathrowExplore 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.

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.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cambodia to London Heathrow Airport that are best for you.

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.

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?

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?

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

How can I find direct flights from Cambodia to Heathrow?

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

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

Travelling to a place near London Heathrow Airport?

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 Cambodia to Heathrow

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 Cambodia to Heathrow?

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

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

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

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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.