฿27,470 Cheap Flights from Phnom Penh (PNH) to London (LHR)

View ฿27,470 flight on Thu, 4 Sep 2025Opens in a new window

Popular airlines from Phnom Penh Intl. Airport (PNH) to Heathrow Airport (LHR)

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Cheap Flights from Phnom Penh (PNH) to London (LHR)

Prices were available within the past 7 days and start at ฿27,470 for one-way flights and ฿22,790 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Sat, 4 Oct - Thu, 9 Oct
PNH
Phnom Penh
LHR
London
฿22,790 Return, found 6 hours ago
฿22,790
Return
found 6 hours ago
Select Etihad Airways flight, departing Sat, 4 Oct from Phnom Penh to London, returning Thu, 9 Oct, priced at ฿22,790 found 6 hours ago
Etihad Airways
Thu, 30 Oct - Mon, 10 Nov
PNH
Phnom Penh
LHR
London
฿26,415 Return, found 1 day ago
฿26,415
Return
found 1 day ago
Select Etihad Airways flight, departing Thu, 30 Oct from Phnom Penh to London, returning Mon, 10 Nov, priced at ฿26,415 found 1 day ago
Etihad Airways
Thu, 30 Oct - Mon, 10 Nov
PNH
Phnom Penh
LHR
London
฿29,795 Return, found 1 day ago
฿29,795
Return
found 1 day ago
Select Etihad Airways flight, departing Thu, 30 Oct from Phnom Penh to London, returning Mon, 10 Nov, priced at ฿29,795 found 1 day ago
Etihad Airways
Thu, 30 Oct - Mon, 10 Nov
PNH
Phnom Penh
LHR
London
฿30,435 Return, found 1 day ago
฿30,435
Return
found 1 day ago
Select Etihad Airways flight, departing Thu, 30 Oct from Phnom Penh to London, returning Mon, 10 Nov, priced at ฿30,435 found 1 day ago
Etihad Airways
Thu, 30 Oct - Mon, 10 Nov
PNH
Phnom Penh
LHR
London
฿33,820 Return, found 1 day ago
฿33,820
Return
found 1 day ago
Select Etihad Airways flight, departing Thu, 30 Oct from Phnom Penh to London, returning Mon, 10 Nov, priced at ฿33,820 found 1 day ago
Etihad Airways
Thu, 30 Oct - Mon, 10 Nov
PNH
Phnom Penh
LHR
London
฿36,405 Return, found 3 days ago
฿36,405
Return
found 3 days ago
Select Etihad Airways flight, departing Thu, 30 Oct from Phnom Penh to London, returning Mon, 10 Nov, priced at ฿36,405 found 3 days ago
Thai Airways International
Thu, 4 Sep - Mon, 8 Sep
PNH
Phnom Penh
LHR
London
฿144,655 Return, just found
฿144,655
Return
just found
Select Thai Airways International flight, departing Thu, 4 Sep from Phnom Penh to London, returning Mon, 8 Sep, priced at ฿144,655 just found
Cathay Pacific
Thu, 4 Sep - Mon, 8 Sep
PNH
Phnom Penh
LHR
London
฿156,500 Return, just found
฿156,500
Return
just found
Select Cathay Pacific flight, departing Thu, 4 Sep from Phnom Penh to London, returning Mon, 8 Sep, priced at ฿156,500 just found
Swiss International Air Lines
Thu, 4 Sep - Mon, 8 Sep
PNH
Phnom Penh
LHR
London
฿165,470 Return, just found
฿165,470
Return
just found
Select Swiss International Air Lines flight, departing Thu, 4 Sep from Phnom Penh to London, returning Mon, 8 Sep, priced at ฿165,470 just found
Emirates
Thu, 4 Sep - Mon, 8 Sep
PNH
Phnom Penh
LHR
London
฿213,350 Return, just found
฿213,350
Return
just found
Select Emirates flight, departing Thu, 4 Sep from Phnom Penh to London, returning Mon, 8 Sep, priced at ฿213,350 just found

Find the cheapest month to fly from Phnom Penh (PNH) to London (LHR)

March is typically the cheapest month to fly

From ฿21,665 - ฿35,872 per traveller.

Graph displaying average flight prices per month

Flight from Phnom Penh to London route information
Origin airport
Phnom Penh Intl.
Destination airport
Heathrow
Airlines serving
Etihad Airways
Return price
฿22,790
Distance
9976 km

Perfect flights from Phnom Penh to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Phnom Penh to London. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Phnom Penh Intl. to Heathrow ticket options cater to your travel preferences, with incredible one-way fares from ฿27,470 and roundtrip prices from ฿22,790. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Heathrow and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in London.

Frequently asked questions

How much is a flight from PNH to Heathrow Airport?
The lowest price advertised for a round-trip flight between Phnom Penh Airport and Heathrow Airport is ฿22,790. But you better act quick. This figure is based on fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Phnom Penh Intl. Airport (PNH) to Heathrow Airport?
Most flights can be cancelled online, but whether you are charged a fee all comes down to your airline. If you do need to cancel your getaway, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Phnom Penh Intl. Airport (PNH) to Heathrow Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PNH to Heathrow Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from PNH to LHR?
You'll have 10,000 kilometres to cover on the long-haul Cambodia to Hounslow route. Wear comfy clothes and consider taking a pair of noise-cancelling earphones.
Which airlines fly direct from Phnom Penh Intl. Airport (PNH) to LHR?
You won't find any airlines operating directly between Phnom Penh Airport and Heathrow Airport (LHR), so be ready to make at least one stop on your journey. A layover, whether short or long, can be a nice way to break up a trip!
Are PNH to Heathrow Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to score a great last-minute deal from Phnom Penh Airport to Heathrow Airport (LHR), but it's also possible to miss out entirely! As many airlines publish prices up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a good bargain. Expedia compares air carrier prices and updates flight deals frequently, so you can rest assured you're always getting the latest offers.

Explore a world of travel with Expedia

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