Cheap flights from Heathrow to Phnom Penh

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How to find the cheapest flight from
Heathrow (LHR) to Phnom Penh (PNH)

All the information you need to plan the best LHR to PNH flight in 2021: compare Heathrow to Phnom Penh flight prices with the expected peak season, weather and rainfall in Phnom Penh.
LHR - PNH
Price
£465 - £744
PNH
Temperature
30 - 35 °C
PNH
Rainfall
0 - 66 mm

Popular in

December

High demand for flights, 26% potential price rise

Cheapest in

May

Best time to find cheap flights, 15% potential price drop

Average price

£572

Average for round-trip flights in April 2021

Round-trip from

£465

From Heathrow to Phnom Penh

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from Heathrow to Phnom Penh?

Travellers have found it’s best to book a flight 61 days in advance to save up to 19% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Heathrow to Phnom Penh 1-2 weeks in advance for as low as £543, or £583 for flights within the next 24 hours.

What is the cheapest month to fly from Heathrow to Phnom Penh?

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, May can be a great choice for travel to Phnom Penh. Flights to Phnom Penh from Heathrow in May are about £532 on average during May, but can be found for as low as £327.

Cheap flights from Heathrow to Phnom Penh in April, May 2021

The best prices found for LHR to PNH flights in April, May
25 May - 19 Jun
£617pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Multiple Airlines
 
1 STOP
LHR
London Heathrow
22 May - 20 Jun
£640pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Multiple Airlines
 
1 STOP
LHR
London Heathrow
25 May - 19 Jun
£684pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Multiple Airlines
 
1 STOP
LHR
London Heathrow

Heathrow to Phnom Penh 2021 flight deals

Cheap flights to Phnom Penh from Heathrow found for this year
23 Jun - 15 Sep
£506pp
LHR
London Heathrow
Singapore Airlines
 
1 STOP
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
 
1 STOP
LHR
London Heathrow
17 Jun - 30 Oct
£507pp
LHR
London Heathrow
Singapore Airlines
 
1 STOP
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
 
1 STOP
LHR
London Heathrow
19 Oct - 18 Feb
£510pp
LHR
London Heathrow
Singapore Airlines
 
1 STOP
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
 
1 STOP
LHR
London Heathrow

One-way flights to Phnom Penh from Heathrow

The cheapest one-way flights from Heathrow to Phnom Penh
12:10 - 16:40
Finnair
2 stops
22h 30m
LHR - PNH
Finnair
£517
Flyus
07:25 - 13:30
Singapore Airlines
1 stop
24h 05m
LHR - PNH
Singapore Airlines
£2,223
06:50 - 11:45
Multiple Airlines
3 stops
22h 55m
LHR - PNH
Multiple Airlines
£2,899
qatarairways.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">Phnom Penh</span> flights.

Flight FAQs

From Heathrow to Phnom Penh

Are flight prices decreasing from Heathrow to Phnom Penh due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Heathrow and Phnom Penh for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from London Heathrow to Phnom Penh Pochentong to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Philippine Airlines and Etihad Airways are some airlines that have done so. New policies for travellers booking flights from London Heathrow to Phnom Penh Pochentong include masks being provided and required on board, daily cleaning and sanitisation, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially-distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from London Heathrow to Phnom Penh Pochentong have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Thai Airways, Shenzhen Airlines, and Air China flying from London Heathrow to Phnom Penh Pochentong have implemented new flexible cancellation policies.

Can I find flights from Heathrow to Phnom Penh for under £509 on Cheapflights?

Yes, there are multiple flights from Heathrow to Phnom Penh for under £509. The cheapest flight booked recently is on Singapore Airlines for just £506, but on average you can expect to pay £593.

Are there direct flights from Heathrow to Phnom Penh for under £509 on Cheapflights?

There are no direct flights from Heathrow to Phnom Penh, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Does it rain more in Heathrow or Phnom Penh?

Heathrow will have greater rainfall in 0 compared to Phnom Penh over the next 20 days.

Is Heathrow weather warmer or cooler than Phnom Penh?

You can imagine temperatures to be in the 35 °C range in April. The weather in Phnom Penh is generally hotter than Heathrow's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long does is the flight from Heathrow to Phnom Penh?

Departing from Heathrow to Phnom Penh will take you 17h 50m. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to flying from Heathrow to Phnom Penh return?

Flying on Singapore Airlines is currently your cheapest option to Phnom Penh, with prices starting at £507. Additional return tickets that might be worth considering are offered by Etihad Airways and Qatar Airways, with the lowest prices starting at £615 and £706, respectively. You may be able to fly from Heathrow to Phnom Penh for 7% less than the average price by searching for these airlines.

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

For one-way options, check prices for Finnair. According to our data, you can fly for as low as £517. Users have also found tickets on Singapore Airlines for as little as £553.

Alternative routes for Heathrow to Phnom Penh

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

Destination information for Phnom Penh

Things to know before you go - useful duration and weather info for your trip from Heathrow to Phnom Penh.
Today's exchange rate
£1 = 5,519.39៛
Average temperature for April in Phnom Penh
35.0 °C

Airports servicing London

Airports servicing Phnom Penh

Top 10 airlines flying from Heathrow to Phnom Penh

The chart below displays the airlines Cheapflights users travelling from Heathrow to Phnom Penh choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Shenzhen Airlines
£413 £516 No cancel fee 63%

We couldn't confirm the COVID-19 safety measures taken by Shenzhen Airlines. Please check directly on their website for additional information.

Search Shenzhen Airlines flights
China Southern
£414 £566 No cancel fee 69%

We couldn't confirm the COVID-19 safety measures taken by China Southern. Please check directly on their website for additional information.

Search China Southern flights
Air China
£462 £604 No cancel fee 67%
Search Air China flights
Philippine Airlines
£514 £694 No cancel fee 60%
Search Philippine Airlines flights
Vietnam Airlines
£643 £782 No cancel fee 81%
Search Vietnam Airlines flights
Malaysia Airlines
£623 £797 No cancel fee 67%
Search Malaysia Airlines flights
Thai Airways
£625 £799 No cancel fee 77%
Search Thai Airways flights
Emirates
£654 £800 No cancel fee 75%
Search Emirates flights
Singapore Airlines
£623 £817 No cancel fee 81%
Search Singapore Airlines flights
Cathay Pacific
£658 £862 No cancel fee 72%
Search Cathay Pacific flights
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