S$438 Cheap Flights from Phnom Penh to London

View S$438 flight on Thu, 5 Jun, 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 to London (PNH-LHR)

Prices were available within the past 7 days and start at S$438 for one-way flights and S$1,178 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Malaysia Airlines
Sat, 4 Oct - Sun, 12 Oct
PNH
Phnom Penh
LHR
London
S$1,178 Return, found 5 days ago
S$1,178
Return
found 5 days ago
Select Malaysia Airlines flight, departing Sat, 4 Oct from Phnom Penh to London, returning Sun, 12 Oct, priced at S$1,178 found 5 days ago
Etihad Airways
Sat, 4 Oct - Sun, 12 Oct
PNH
Phnom Penh
LHR
London
S$1,186 Return, found 5 days ago
S$1,186
Return
found 5 days ago
Select Etihad Airways flight, departing Sat, 4 Oct from Phnom Penh to London, returning Sun, 12 Oct, priced at S$1,186 found 5 days ago
Malaysia Airlines
Sat, 4 Oct - Sun, 12 Oct
PNH
Phnom Penh
LHR
London
S$1,338 Return, found 5 days ago
S$1,338
Return
found 5 days ago
Select Malaysia Airlines flight, departing Sat, 4 Oct from Phnom Penh to London, returning Sun, 12 Oct, priced at S$1,338 found 5 days ago
Cathay Pacific
Fri, 12 Sep - Sat, 20 Sep
PNH
Phnom Penh
LHR
London
S$1,407 Return, found 2 days ago
S$1,407
Return
found 2 days ago
Select Cathay Pacific flight, departing Fri, 12 Sep from Phnom Penh to London, returning Sat, 20 Sep, priced at S$1,407 found 2 days ago
Emirates
Sat, 4 Oct - Sun, 12 Oct
PNH
Phnom Penh
LHR
London
S$1,413 Return, found 5 days ago
S$1,413
Return
found 5 days ago
Select Emirates flight, departing Sat, 4 Oct from Phnom Penh to London, returning Sun, 12 Oct, priced at S$1,413 found 5 days ago
Shenzhen Airlines
Thu, 17 Jul - Sun, 10 Aug
PNH
Phnom Penh
LHR
London
S$1,524 Return, found 16 hours ago
S$1,524
Return
found 16 hours ago
Select Shenzhen Airlines flight, departing Thu, 17 Jul from Phnom Penh to London, returning Sun, 10 Aug, priced at S$1,524 found 16 hours ago
Thai Airways International
Fri, 12 Sep - Sat, 20 Sep
PNH
Phnom Penh
LHR
London
S$1,594 Return, found 2 days ago
S$1,594
Return
found 2 days ago
Select Thai Airways International flight, departing Fri, 12 Sep from Phnom Penh to London, returning Sat, 20 Sep, priced at S$1,594 found 2 days ago
China Airlines
Fri, 12 Sep - Sat, 20 Sep
PNH
Phnom Penh
LHR
London
S$1,624 Return, found 2 days ago
S$1,624
Return
found 2 days ago
Select China Airlines flight, departing Fri, 12 Sep from Phnom Penh to London, returning Sat, 20 Sep, priced at S$1,624 found 2 days ago
Singapore Airlines
Thu, 17 Jul - Sun, 10 Aug
PNH
Phnom Penh
LHR
London
S$1,643 Return, found 16 hours ago
S$1,643
Return
found 16 hours ago
Select Singapore Airlines flight, departing Thu, 17 Jul from Phnom Penh to London, returning Sun, 10 Aug, priced at S$1,643 found 16 hours ago
China Southern Airlines
Fri, 12 Sep - Sat, 20 Sep
PNH
Phnom Penh
LHR
London
S$1,647 Return, found 2 days ago
S$1,647
Return
found 2 days ago
Select China Southern Airlines flight, departing Fri, 12 Sep from Phnom Penh to London, returning Sat, 20 Sep, priced at S$1,647 found 2 days ago

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 S$1,178. 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.
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