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Cheap flights from Phnom Penh to London Heathrow Airport from £234

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 22/11. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — LHR
20 nov. — 27 nov.1
1 adult

The best prices from Phnom Penh Pochentong to London Heathrow are usually found in March or May, booked 70 days in advance, depart on a Saturday or Wednesday and return on a Monday

Cheap flight deals from Phnom Penh to Heathrow

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

£532

One-way from

£234

Popular in

July

Cheapest in

March
China Eastern
  • China Eastern
  • 9/12-30/12
  • 2 total stops
  • 43h 30m total
  • Phnom Penh to London
China Southern
  • China Southern
  • 22/11
  • 1 total stop
  • 17h 15m total
  • Phnom Penh to London
High demand for flights, 28% potential price rise
Best time to find cheap flights, 25% potential price drop

Find flight deals from Phnom Penh to Heathrow

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

man. 9/1200:15PNH - LHR
1 stop24h 15mChina Eastern
man. 30/1221:00LHR - PNH
1 stop19h 15mChina Eastern
Deal found 14/11£532
man. 25/1111:55PNH - LHR
1 stop37h 20mChina Southern
søn. 1/1222:00LHR - PNH
1 stop18h 30mChina Southern
Deal found 14/11£539
søn. 24/1111:05PNH - LHR
3 stops33h 50mMultiple Airlines
lør. 30/1121:10LHR - PNH
1 stop31h 05mMultiple Airlines
Deal found 15/11£554
søn. 24/1112:15PNH - LHR
1 stop37h 55mShenzhen Airlines
lør. 30/1121:10LHR - PNH
1 stop31h 05mShenzhen Airlines
Deal found 15/11£570
fre. 22/1100:25PNH - LHR
1 stop22h 30mAir China
fre. 29/1120:25LHR - PNH
1 stop19h 45mAir China
Deal found 14/11£616
søn. 24/1121:30PNH - LHR
2 stops23h 20mEmirates
søn. 1/1215:50LHR - PNH
2 stops19h 35mEmirates
Deal found 14/11£770
søn. 15/1217:10PNH - LHR
2 stops26h 05mQatar Airways
søn. 22/1208:05LHR - PNH
2 stops24h 20mQatar Airways
Deal found 15/11£1,120
man. 25/1120:00PNH - LHR
1 stop18h 15mVietnam Airlines
fre. 29/1111:00LHR - PNH
2 stops19h 00mVietnam Airlines
Deal found 14/11£1,228
man. 9/1218:45PNH - LHR
1 stop27h 50mSingapore Airlines
man. 16/1209:10LHR - PNH
1 stop20h 35mSingapore Airlines
Deal found 15/11£1,240
lør. 28/1217:10PNH - LHR
2 stops19h 40mBritish Airways
tir. 31/1208:35LHR - PNH
2 stops23h 50mBritish Airways
Deal found 14/11£2,419

Find flights from Phnom Penh to Heathrow within your budget

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

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

man. 9/12

00:15-17:30

1 stop24h 15m

London Heathrow

man. 30/12

21:00-23:15

1 stop19h 15m

£532

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

man. 17/2

15:50-14:00

2 stops53h 10m

London Heathrow

søn. 23/2

22:00-14:35

1 stop33h 35m

£535

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

tor. 26/12

11:05-13:55

3 stops33h 50m

London Heathrow

man. 30/12

21:00-06:50

2 stops26h 50m

£609

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

tir. 10/12

12:15-19:10

1 stop37h 55m

London Heathrow

man. 30/12

21:10-11:15

1 stop31h 05m

£615

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

man. 9/12

00:25-17:50

1 stop24h 25m

London Heathrow

man. 30/12

17:40-11:15

2 stops34h 35m

£633

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

man. 25/11

21:30-13:50

2 stops23h 20m

London Heathrow

fre. 29/11

15:50-18:25

2 stops19h 35m

£770

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

tor. 16/1

18:45-15:35

1 stop27h 50m

London Heathrow

lør. 25/1

09:10-08:35

1 stop16h 25m

£871

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

man. 17/2

17:10-09:05

3 stops22h 55m

London Heathrow

søn. 23/2

14:55-15:25

2 stops17h 30m

£939

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

tor. 16/1

17:30-07:15

2 stops20h 45m

London Heathrow

lør. 25/1

11:00-16:40

1 stop22h 40m

£1,042

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

fre. 22/11

08:00-18:15

1 stop17h 15m

£234

Flights are sorted by cheapest first

Deals found on 14/11

Showing 1-10 of 24 results
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Best time to book a flight from Phnom Penh to Heathrow

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

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

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

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

The price you pay for your flight from Phnom Penh to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Phnom Penh to London Heathrow Airport (average of £112). Flying from Phnom Penh to London Heathrow Airport in July is currently the most expensive (average of £160). 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 PNH to LHR?

Find hourly flight availability from Phnom Penh to Heathrow. 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.

One of the essential ways to save on airfare from Phnom Penh to London Heathrow Airport is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the morning could potentially save you up to 42% on airfare.

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 15 november 2024.
Read through reviews of airlines operating flights from Phnom Penh to London, such as China Eastern, China Southern and Air China. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.4
Very Good
1,314 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.2

Food

8.0

Boarding

8.4

Reviews

1 / 10

It was poor. Eva air seated me in a different row than my autistic daughter. It was stressful for her and she spend a good portion of the flight asking me the same questions for a 12 hour flight for reassurance. I spent the 12 hour flight looking behind me seeing if she was ok. Meanwhile there was an empty seat in the row behind her. It was the worst flight I've ever had

8.4
Very Good
1,314 reviews
8.4
Very Good
1,314 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.2

Food

8.0

Boarding

8.4

Reviews

1 / 10

It was poor. Eva air seated me in a different row than my autistic daughter. It was stressful for her and she spend a good portion of the flight asking me the same questions for a 12 hour flight for reassurance. I spent the 12 hour flight looking behind me seeing if she was ok. Meanwhile there was an empty seat in the row behind her. It was the worst flight I've ever had

8.4
Very Good
477 reviews
8.4
Very Good
1,314 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.2

Food

8.0

Boarding

8.4

Reviews

1 / 10

It was poor. Eva air seated me in a different row than my autistic daughter. It was stressful for her and she spend a good portion of the flight asking me the same questions for a 12 hour flight for reassurance. I spent the 12 hour flight looking behind me seeing if she was ok. Meanwhile there was an empty seat in the row behind her. It was the worst flight I've ever had

8.3
Very Good
780 reviews
8.4
Very Good
1,314 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.2

Food

8.0

Boarding

8.4

Reviews

1 / 10

It was poor. Eva air seated me in a different row than my autistic daughter. It was stressful for her and she spend a good portion of the flight asking me the same questions for a 12 hour flight for reassurance. I spent the 12 hour flight looking behind me seeing if she was ok. Meanwhile there was an empty seat in the row behind her. It was the worst flight I've ever had

8.1
Very Good
3,505 reviews
8.4
Very Good
1,314 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.2

Food

8.0

Boarding

8.4

Reviews

1 / 10

It was poor. Eva air seated me in a different row than my autistic daughter. It was stressful for her and she spend a good portion of the flight asking me the same questions for a 12 hour flight for reassurance. I spent the 12 hour flight looking behind me seeing if she was ok. Meanwhile there was an empty seat in the row behind her. It was the worst flight I've ever had

7.8
Good
371 reviews
8.4
Very Good
1,314 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.2

Food

8.0

Boarding

8.4

Reviews

1 / 10

It was poor. Eva air seated me in a different row than my autistic daughter. It was stressful for her and she spend a good portion of the flight asking me the same questions for a 12 hour flight for reassurance. I spent the 12 hour flight looking behind me seeing if she was ok. Meanwhile there was an empty seat in the row behind her. It was the worst flight I've ever had

Related info for your journey

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

    Phnom Penh Pochentong (PNH), located 5.0 mi from the city center, is the airport you fly out of when you book flights from Phnom Penh to London Heathrow. 3 airlines have flights from Pochentong to London Heathrow on a regular basis. Booking flights from Phnom Penh Pochentong to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

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

    Flying on China Eastern is currently your cheapest option to London Heathrow Airport, with prices starting at £532. Additional return tickets that might be worth considering are offered by China Southern and Air China, with the lowest prices starting at £535 and £633, respectively. These flights start at 36% lower than the current average price 3 months from now.

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

    For one-way options, check prices for China Southern. According to our data, you can fly for as low as £234. Users have also found prices from £267 and £285 on Air China and China Eastern, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Phnom Penh to London Heathrow Airport (average of £112). Flying from Phnom Penh to London Heathrow Airport in July is currently the most expensive (average of £160). 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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Alternative routes for Phnom Penh to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Phnom Penh to Heathrow

Discover the top 3 airlines that operate flights from Phnom Penh 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 943,810 searches. Data last updated 15 november 2024.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£463Average£528FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£553Average£663FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Thai AirwaysCheapest£918Average£1,131FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

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

Deals for Phnom Penh to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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

Need flexible booking options for your flight to Heathrow from Phnom Penh? 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 Phnom Penh to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Phnom Penh to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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