LHR - KTI

Find cheap flights from London to Phnom Penh - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Nonstop flights
Not available
There are currently no direct flights between London and Phnom Penh. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Kuala Lumpur (KUL)
Cheapest • Avg $871 (round-trip)
Bangkok (BKK)
Shortest trip • 15h 09m (one-way)
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 27% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Phnom Penh!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Phnom Penh (LHR-KTI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Phnom Penh that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Phnom Penh

Multiple Airlines Logo
LHR
-
KTI
6246 mimulti-stop
Multiple Airlines Logo
KTI
-
LHR
6246 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for London to Phnom Penh flights

Get data-powered insights and trends into flights from London to Phnom Penh to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Phnom Penh, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Phnom Penh is September, where tickets cost $689 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $1,320 and $1,199 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Phnom Penh, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to Phnom Penh, you should book around 2 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Find deals

Good to know

Low season

September
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 23% lower on average.

When to book flights from London to Phnom Penh

Are your dates flexible? Find out the best times to travel from London to Phnom Penh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London to Phnom Penh flights

  • Do I need a passport to fly between London and Phnom Penh?

    Yes

  • Which aircraft models fly most regularly from London to Phnom Penh?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Phnom Penh?

    Star Alliance is the only airline alliance operating flights between London and Phnom Penh.

  • Which is the best airline for flights from London to Phnom Penh, Thai Airways or Etihad Airways?

    The two airlines most popular with KAYAK users for flights from London to Phnom Penh are Thai Airways and Etihad Airways. With an average price for the route of $1,418 and an overall rating of 7.9, Thai Airways is the most popular choice. Etihad Airways is also a great choice for the route, with an average price of $858 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from London to Phnom Penh?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Phnom Penh.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Phnom Penh?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phnom Penh from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Phnom Penh?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phnom Penh with an airline and back to London with another airline. Booking your flights between London and KTI can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Phnom Penh?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phnom Penh from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from London to Phnom Penh

Information on your arrival and departure airports

London (LHR)
Phnom Penh (KTI)