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Cheap flights from London Heathrow Airport to Phnom Penh from £264

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 23/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PNH
20 Nov — 27 Nov1
1 adult

The best prices from London Heathrow to Phnom Penh Pochentong are usually found in May or June, booked 67 days in advance, depart on a Monday or Saturday and return on a Saturday

Cheap flight deals from Heathrow to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Phnom Penh (PNH). 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 15 November 2024.

Round-trip from

£448

One-way from

£264

Popular in

December

Cheapest in

May
Shenzhen Airlines
  • Shenzhen Airlines
  • 1/12-15/12
  • 2 total stops
  • 69h 00m total
  • London to Phnom Penh
Search Deals
Shenzhen Airlines
  • Shenzhen Airlines
  • 23/11
  • 1 total stop
  • 31h 05m total
  • London to Phnom Penh
Search Deals
High demand for flights, 29% potential price rise
Search Deals
Best time to find cheap flights, 31% potential price drop
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Find flight deals from Heathrow to Phnom Penh

Cheapest flights from Heathrow to Phnom Penh
Explore the most affordable flight options available from Heathrow to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 November 2024.

Tue 26/1117:40LHR - PNH
1 stop22h 30mAir China
Mon 2/1200:25PNH - LHR
1 stop24h 25mAir China
Deal found 15/11£510
Tue 26/1121:30LHR - PNH
2 stops30h 20mChina Southern
Tue 3/1211:55PNH - LHR
1 stop37h 20mChina Southern
Deal found 14/11£520
Fri 29/1121:10LHR - PNH
1 stop31h 05mShenzhen Airlines
Tue 17/1212:15PNH - LHR
1 stop37h 55mShenzhen Airlines
Deal found 15/11£528
Mon 25/1121:10LHR - PNH
1 stop31h 05mMultiple Airlines
Mon 23/1211:05PNH - LHR
3 stops33h 50mMultiple Airlines
Deal found 15/11£558
Thu 21/1117:50LHR - PNH
3 stops33h 10mChina Eastern
Wed 4/1200:15PNH - LHR
1 stop24h 15mChina Eastern
Deal found 15/11£636
Fri 29/1111:00LHR - PNH
2 stops19h 00mVietnam Airlines
Mon 20/120:00PNH - LHR
1 stop18h 15mVietnam Airlines
Deal found 14/11£653
Sun 24/1108:35LHR - PNH
2 stops23h 50mQatar Airways
Wed 4/1217:10PNH - LHR
2 stops20h 15mQatar Airways
Deal found 15/11£700
Tue 19/1122:05LHR - PNH
1 stop36h 50mSingapore Airlines
Wed 27/1118:55PNH - LHR
1 stop27h 40mSingapore Airlines
Deal found 15/11£734
Tue 31/1213:40LHR - PNH
2 stops21h 45mEmirates
Wed 15/121:30PNH - LHR
2 stops25h 40mEmirates
Deal found 14/11£776
Sun 29/1220:55LHR - PNH
2 stops30h 10mEtihad Airways
Mon 20/119:25PNH - LHR
2 stops42h 20mEtihad Airways
Deal found 14/11£845

Find flights from Heathrow to Phnom Penh within your budget

Customise your flight search to find flights from Heathrow to Phnom Penh 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 943,810 searches. Data last updated 15 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Sat 22/3

17:40-23:10

1 stop22h 30m

Phnom Penh Pochentong

Tue 8/4

00:05-17:45

1 stop23h 40m

£509

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Tue 26/11

21:30-10:50

2 stops30h 20m

Phnom Penh Pochentong

Tue 3/12

11:55-18:15

1 stop37h 20m

£520

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 29/11

21:10-11:15

1 stop31h 05m

Phnom Penh Pochentong

Tue 17/12

12:15-19:10

1 stop37h 55m

£528

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 25/11

21:10-11:15

1 stop31h 05m

Phnom Penh Pochentong

Mon 23/12

11:05-13:55

3 stops33h 50m

£558

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 16/1

17:50-23:15

1 stop22h 25m

Phnom Penh Pochentong

Mon 3/2

00:15-13:55

1 stop20h 40m

£595

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 5/5

22:05-08:30

1 stop28h 25m

Phnom Penh Pochentong

Tue 27/5

14:05-05:55

1 stop21h 50m

£632

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 29/11

11:00-13:00

2 stops19h 00m

Phnom Penh Pochentong

Mon 20/1

20:00-07:15

1 stop18h 15m

£653

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 5/5

15:05-16:15

2 stops19h 10m

Phnom Penh Pochentong

Tue 27/5

17:40-13:15

2 stops25h 35m

£697

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Tue 7/1

19:25-13:40

2 stops35h 15m

£345

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Sat 1/2

22:00-10:50

1 stop29h 50m

£363

Flights are sorted by cheapest first

Deals found on 15/11

Showing 1-10 of 20 results
1
2

Best time to book a flight from Heathrow to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Heathrow 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.

Travel insights for flights from Heathrow to Phnom Penh

Get recent, data-driven insights about flights from Heathrow to Phnom Penh including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Heathrow Airport to Phnom Penh?

Use this chart to determine the optimal time to book a return flight from Heathrow to Phnom Penh. Price data was last updated on 8 November 2024.

The best time to book flights from London Heathrow Airport to Phnom Penh is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Phnom Penh (average of £689). Flying from London Heathrow Airport to Phnom Penh in July is currently the most expensive (average of £1,031). 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.

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

Find hourly flight availability from Heathrow to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 November 2024.

When flying from London Heathrow Airport to Phnom Penh, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 37% versus a flight at midday.

What is the cheapest day to fly from London Heathrow Airport to Phnom Penh?

Use this chart to determine the cheapest time to fly return from Heathrow to Phnom Penh. Price data was last updated on 10 November 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Phnom Penh flight should consider departing on Monday evenings when fares are most often at their lowest. Tuesday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Phnom Penh by month

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

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 250.0 inches per month. October is typically the wettest month, when rainfall can reach 250.0 mm. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 mm.

Temperature in Phnom Penh by month

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

If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 25.0 C).

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. 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 Phnom Penh. Reviews last updated 15 November 2024.
Read reviews from past customers who have flown Shenzhen Airlines, China Southern and Air China from London to Phnom Penh. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Asiana Airlines
8.4
Very Good
477 reviews
Check prices

Comfort

8.2

Food

8.1

Crew

8.6

Boarding

8.5

Overall

8.4

Entertainment

7.9

Reviews

1 / 10

My wife and I recently had two great flights from Los Angeles to Seoul and from Seoul to Jakarta. The flight attendants were friendly, polite and attentive, and our economy seats had excellent legroom compared to other airlines we've flown. Also, the food and the entertainment were quite enjoyable. I would be happy to fly Asiana Airlines again.

Asiana Airlines
8.4
Very Good
477 reviews
Asiana Airlines
8.4
Very Good
477 reviews
Check prices

Comfort

8.2

Food

8.1

Crew

8.6

Boarding

8.5

Overall

8.4

Entertainment

7.9

Reviews

1 / 10

My wife and I recently had two great flights from Los Angeles to Seoul and from Seoul to Jakarta. The flight attendants were friendly, polite and attentive, and our economy seats had excellent legroom compared to other airlines we've flown. Also, the food and the entertainment were quite enjoyable. I would be happy to fly Asiana Airlines again.

China Airlines
8.3
Very Good
780 reviews
Asiana Airlines
8.4
Very Good
477 reviews
Check prices

Comfort

8.2

Food

8.1

Crew

8.6

Boarding

8.5

Overall

8.4

Entertainment

7.9

Reviews

1 / 10

My wife and I recently had two great flights from Los Angeles to Seoul and from Seoul to Jakarta. The flight attendants were friendly, polite and attentive, and our economy seats had excellent legroom compared to other airlines we've flown. Also, the food and the entertainment were quite enjoyable. I would be happy to fly Asiana Airlines again.

Emirates
8.1
Very Good
3,505 reviews
Asiana Airlines
8.4
Very Good
477 reviews
Check prices

Comfort

8.2

Food

8.1

Crew

8.6

Boarding

8.5

Overall

8.4

Entertainment

7.9

Reviews

1 / 10

My wife and I recently had two great flights from Los Angeles to Seoul and from Seoul to Jakarta. The flight attendants were friendly, polite and attentive, and our economy seats had excellent legroom compared to other airlines we've flown. Also, the food and the entertainment were quite enjoyable. I would be happy to fly Asiana Airlines again.

Singapore Airlines
8.1
Very Good
1,334 reviews
Asiana Airlines
8.4
Very Good
477 reviews
Check prices

Comfort

8.2

Food

8.1

Crew

8.6

Boarding

8.5

Overall

8.4

Entertainment

7.9

Reviews

1 / 10

My wife and I recently had two great flights from Los Angeles to Seoul and from Seoul to Jakarta. The flight attendants were friendly, polite and attentive, and our economy seats had excellent legroom compared to other airlines we've flown. Also, the food and the entertainment were quite enjoyable. I would be happy to fly Asiana Airlines again.

Cathay Pacific
7.6
Good
875 reviews
Asiana Airlines
8.4
Very Good
477 reviews
Check prices

Comfort

8.2

Food

8.1

Crew

8.6

Boarding

8.5

Overall

8.4

Entertainment

7.9

Reviews

1 / 10

My wife and I recently had two great flights from Los Angeles to Seoul and from Seoul to Jakarta. The flight attendants were friendly, polite and attentive, and our economy seats had excellent legroom compared to other airlines we've flown. Also, the food and the entertainment were quite enjoyable. I would be happy to fly Asiana Airlines again.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Phnom Penh. 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 into for flights to Phnom Penh from London Heathrow?

    Located just 5.0 mi from the city center, Phnom Penh Pochentong is the airport most travelers will use when flying to Phnom Penh from London Heathrow. Booking flights from London Heathrow to Pochentong (PNH) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 12 different airlines.

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

    Currently priced at £448, Shenzhen Airlines will fly you from London Heathrow Airport to Phnom Penh and back. In addition to Shenzhen Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from China Southern and Air China - these airlines can fly you to your destination from £464 and £486, respectively. You may be able to fly from London Heathrow Airport to Phnom Penh for 40% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Shenzhen Airlines, which is currently one of the cheapest options available, starting at £264. Air China flights start at £319 while deals on China Southern start at £363 one-way.

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

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

  • How can I find direct flights from Heathrow to Phnom Penh?

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

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

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

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Phnom Penh (average of £689). Flying from London Heathrow Airport to Phnom Penh in July is currently the most expensive (average of £1,031). 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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Top 10 airlines flying from Heathrow to Phnom Penh

Discover the top 10 airlines that operate flights from Heathrow to Phnom Penh. 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 943,810 searches. Data last updated 15 November 2024.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£414Average£546FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Shenzhen AirlinesCheapest£453Average£496FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air ChinaCheapest£460Average£532FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£648Average£991FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Malaysia AirlinesCheapest£661Average£766FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Singapore AirlinesCheapest£673Average£751FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Cathay PacificCheapest£697Average£861FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Vietnam AirlinesCheapest£715Average£800FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Qatar AirwaysCheapest£778Average£907FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
British AirwaysCheapest£778Average£1,023FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

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

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 Phnom Penh from Heathrow.

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

Yes! Cheapflights helps users easily find flights from Heathrow to Phnom Penh with no change fees.

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

Not ready to book yet? You can track prices for flights from Heathrow to Phnom Penh on Cheapflights with our Price Alert feature and get notified when better prices are available.

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