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 to get the fastest option. There are 6232 mi between Cambodia and London Heathrow Airport.

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 £563 1-2 weeks out and tickets from £563 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 £682. Cheapflights users have found deals in the month of November for as cheap as £448. 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.

£210+ Flights from Cambodia to London Heathrow Airport

Cheap flight deals from Cambodia to Heathrow

Round-trip from	£635
One-way from	£210
Popular in	July
Cheapest in	November
Average price	£676

Etihad Airways
12/12-2/1
2 total stops
38h 45m total
Cambodia to London

Search Deals

Etihad Airways
14/10
1 total stop
34h 15m total
Cambodia to London

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£89 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 September 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 16 September 2025.

Fri 12/1207:55PNH - LHR

1 stop17h 15mEtihad Airways

Fri 2/113:55LHR - PNH

1 stop21h 30mEtihad Airways

Deal found 14/9£635

Fri 19/1207:55PNH - LHR

1 stop37h 35mEtihad Airways

Fri 2/108:50LHR - PNH

1 stop26h 35mEtihad Airways

Deal found 14/9£730

Fri 12/1207:55PNH - LHR

2 stops31h 30mMultiple Airlines

Sat 3/120:55LHR - PNH

1 stop26h 35mMultiple Airlines

Deal found 14/9£873

Fri 12/1207:55PNH - LHR

2 stops19h 55mMultiple Airlines

Fri 2/115:30LHR - PNH

2 stops19h 55mMultiple Airlines

Deal found 14/9£882

Mon 15/1207:55PNH - LHR

1 stop37h 35mMultiple Airlines

Tue 13/119:45LHR - PNH

2 stops39h 40mMultiple Airlines

Deal found 13/9£930

Fri 19/1207:55PNH - LHR

1 stop37h 35mMultiple Airlines

Fri 2/110:45LHR - PNH

2 stops24h 40mMultiple Airlines

Deal found 14/9£947

Thu 30/1007:55PNH - LHR

3 stops31h 10mMultiple Airlines

Thu 6/1106:35LHR - PNH

2 stops16h 55mMultiple Airlines

Deal found 15/9£1,013

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 16 September 2025.

Fri 12/1207:55PNH - LHR

1 stop17h 15mEtihad Airways

Sat 3/120:55LHR - PNH

1 stop26h 35mEtihad Airways

Deal found 14/9£635

Fri 12/1207:55PNH - LHR

3 stops31h 10mMultiple Airlines

Sat 3/120:50LHR - PNH

2 stops26h 40mMultiple Airlines

Deal found 14/9£878

Fri 19/1207:55PNH - LHR

1 stop37h 35mEtihad Airways

Fri 2/108:50LHR - PNH

1 stop26h 35mEtihad Airways

Deal found 14/9£730

Thu 12/319:50PNH - LHR

1 stop25h 40mEtihad Airways

Mon 16/320:55LHR - PNH

1 stop14h 30mEtihad Airways

Deal found 13/9£764

Fri 12/1207:55PNH - LHR

2 stops19h 55mMultiple Airlines

Fri 2/115:30LHR - PNH

2 stops19h 55mMultiple Airlines

Deal found 14/9£882

Mon 15/1207:55PNH - LHR

1 stop37h 35mMultiple Airlines

Tue 13/119:45LHR - PNH

2 stops39h 40mMultiple Airlines

Deal found 13/9£930

Fri 19/1207:55PNH - LHR

1 stop37h 35mMultiple Airlines

Fri 2/110:45LHR - PNH

2 stops24h 40mMultiple Airlines

Deal found 14/9£947

Thu 30/1007:55PNH - LHR

3 stops31h 10mMultiple Airlines

Thu 6/1106:35LHR - PNH

2 stops16h 55mMultiple Airlines

Deal found 15/9£1,013

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 16 September 2025.

Tue 14/1008:30PNH - LHR

1 stop34h 15mEtihad Airways

Deal found 13/9£210

Tue 14/1013:55PNH - LHR

2 stops34h 45mMultiple Airlines

Deal found 13/9£288

Sat 15/1119:50PNH - LHR

1 stop17h 50mEtihad Airways

Deal found 14/9£425

Sat 15/1119:50PNH - LHR

2 stops24h 10mMultiple Airlines

Deal found 14/9£757

Mon 22/913:55PNH - LHR

1 stop35h 25mMultiple Airlines

Deal found 14/9£859

Sat 3/119:50PNH - LHR

1 stop17h 50mEtihad Airways

Deal found 14/9£1,049

Thu 15/119:50PNH - LHR

1 stop29h 20mEtihad Airways

Deal found 14/9£1,247

Mon 9/307:55PNH - LHR

1 stop37h 35mEtihad Airways

Deal found 14/9£1,271

Thu 15/119:50PNH - LHR

2 stops20h 55mMultiple Airlines

Deal found 15/9£1,360

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

Fri 12/12

07:55-18:10

1 stop17h 15m

London Heathrow

Sat 3/1

20:55-06:30

1 stop26h 35m

£635

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 19/12

07:55-14:30

1 stop37h 35m

London Heathrow

Fri 2/1

08:50-18:25

1 stop26h 35m

£730

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Thu 12/3

19:50-14:30

1 stop25h 40m

London Heathrow

Mon 16/3

20:55-18:25

1 stop14h 30m

£764

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 12/12

07:55-08:05

3 stops31h 10m

London Heathrow

Sat 3/1

20:50-06:30

2 stops26h 40m

£878

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 12/12

07:55-20:50

2 stops19h 55m

London Heathrow

Fri 2/1

15:30-18:25

2 stops19h 55m

£882

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Mon 15/12

07:55-14:30

1 stop37h 35m

London Heathrow

Tue 13/1

19:45-18:25

2 stops39h 40m

£930

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 19/12

07:55-14:30

1 stop37h 35m

London Heathrow

Fri 2/1

10:45-18:25

2 stops24h 40m

£947

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Thu 30/10

07:55-08:05

3 stops31h 10m

London Heathrow

Thu 6/11

06:35-06:30

2 stops16h 55m

£1,013

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Tue 14/10

08:30-12:45

1 stop34h 15m

£210

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Tue 14/10

13:55-18:40

2 stops34h 45m

£288

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 17 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.

Reviews of airlines servicing Heathrow

Check out reviews from past customers who have flown with China Southern from Cambodia to London Heathrow Airport 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.

China Southern

7.5

Good

110 reviews

Check prices

Reviews

1 / 5

6.0

Good

Ebbi,Aug 2025

LAX - CAN

Boarding was nice the employees and the crew. They were very nice but the food maybe I don’t like it but it’s not international food. It’s more towards Chinese Tayst, which I do understand but that’s only complain. I have.

China Southern

7.5

Good

110 reviews

China Southern

7.5

Good

110 reviews

Check prices

Reviews

1 / 5

6.0

Good

Ebbi,Aug 2025

LAX - CAN

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 to get the fastest option. There are 6232 mi between Cambodia and London Heathrow Airport.
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

Milton Keynes

Croydon

Hounslow

Slough

Gatwick

Northampton

Luton

Deal

Wembley

Ilford

Crawley

Hayes

Watford

Winchester

Chichester

Ipswich

Swindon

Dartford

Guildford

Brentford

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Cambodia to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
China Southern	Cheapest£477	Average£562	FlexibilityNo cancel fee	On-time69%	Search China Southern flights

Fly with Cheapflights

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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Cambodia to London Heathrow Airport from £210

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 14/10. 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 16 September 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 16 September 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 16 September 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?

Reviews of airlines servicing Heathrow

Check out reviews from past customers who have flown with China Southern from Cambodia to London Heathrow Airport 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.

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.

Top airline flying from Cambodia to Heathrow

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?

100% Free

Book with Flexibility

Travel Smart

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 16 September 2025.