KTI - LHR

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1 adult
1 adult, Economy, 0 bags

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Everything you should know

Nonstop flights
Not available
There are currently no direct flights between Phnom Penh and London Heathrow Airport. You'll need to take a connecting flight to reach the destination.
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When to book
17 weeks
in advance
Our data shows that travelers who book at least 17 weeks in advance save around 50% compared to booking last minute.
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When to travel
July
Cheapest • 15% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Shenzhen (SZX)
Cheapest • Avg $702 (round-trip)
Bangkok Suvarnabhumi (BKK)
Shortest trip • 16h 29m (one-way)
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Cheap Flights from Phnom Penh to London (KTI-LHR)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phnom Penh to London

Multiple Airlines Logo
KTI  Phnom Penh Techo Intl-LHR London Heathrow Airport
6246 mimulti-stop
Multiple Airlines Logo
LHR  London Heathrow Airport-KTI Phnom Penh Techo Intl
6246 mimulti-stop
Multiple Airlines
Booking Insights

Price, demand and travel trends for Phnom Penh to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Phnom Penh to London Heathrow Airport with more confidence.

What's the cheapest day of the week to fly from Phnom Penh to London Heathrow Airport?

Wednesday is the cheapest day of the week to fly from Phnom Penh to London Heathrow Airport, it is 14% cheaper than the average day. Saturday is the most expensive day with flight prices 58% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • July is the cheapest month to fly from Phnom Penh to London Heathrow Airport at $782 round-trip.
  • January ($1,669) and April ($1,212) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 113% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Phnom Penh to London Heathrow Airport the cheapest?

Flights from Phnom Penh to London Heathrow Airport are cheapest 17 weeks before departure. Booking in this window typically costs about 50% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Phnom Penh to London Heathrow Airport flights

Low season

September
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 81% increase in price.

When to book flights from Phnom Penh to London

Are your dates flexible? Find out the best times to travel from Phnom Penh to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Phnom Penh to London Heathrow Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Phnom Penh to London Heathrow Airport?

    Flights from Phnom Penh to London Heathrow Airport usually depart from Phnom Penh Techo Intl (KTI) and arrive at London Heathrow (LHR).

  • What cabin classes can I book on flights from Phnom Penh to London Heathrow Airport?

    Three cabin classes are available on flights from Phnom Penh to London Heathrow Airport:

    • Economy Class
    • Business Class
    • First Class

  • Which airports do connecting flights from Phnom Penh to London Heathrow Airport pass through?

    One-stop flights from Phnom Penh to London Heathrow Airport most commonly connect through:

    • Abu Dhabi Zayed Intl (AUH) - 31% of one-stop connections
    • Guangzhou Baiyun (CAN) - 17% of one-stop connections
    • Hong Kong Intl (HKG) - 13% of one-stop connections
    • Singapore Changi (SIN) - 10% of one-stop connections

    Abu Dhabi Zayed Intl (AUH) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Phnom Penh to London Heathrow Airport?

    Yes. Being flexible with your travel dates can save you up to 46% on the Phnom Penh to London Heathrow Airport route. Wednesday is the cheapest departure day at $797 round-trip on average, while Saturday is the most expensive at $1,463, a difference of $666. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Paddington Station, Central London and London Victoria Station. These are among the most viewed places in London Heathrow Airport on KAYAK.

  • How expensive are last-minute Phnom Penh to London Heathrow Airport flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 51% above the route average of $924. Book 17 weeks before departure for the lowest fares.

  • How long is a flight from Phnom Penh to London Heathrow Airport?

    A nonstop flight from Phnom Penh to London Heathrow Airport takes 0h 00m, covering 6,246 miles.

  • Do I need a passport to fly from Phnom Penh to London Heathrow Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much time can I save by choosing a different layover airport from Phnom Penh to London Heathrow Airport?

    Flying via Bangkok Suvarnabhumi (BKK) gives the shortest average 1-stop total travel time at 16h 29m, compared with 17h 16m via Kuala Lumpur Intl (KUL) and 17h 52m via Hong Kong Intl (HKG).

  • What is the time difference between Phnom Penh and London Heathrow Airport?

    London Heathrow Airport is 6 hours behind Phnom Penh (British Time vs Indochina Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include:
    · GREEN MOTION
    · DRIVALIA
    · Europcar
    · Alamo
    · Hertz

  • How much should I expect to pay for a Phnom Penh to London Heathrow Airport flight?

    Round-trip flights from Phnom Penh to London Heathrow Airport range from $813 to $1,217, with an average of $924 over the past 12 months. Anything below $813 counts as a good deal.

Your guide to booking Phnom Penh to London Heathrow Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Saturday. On this route, Wednesday flights average $797 - about $666 less than Saturday (46% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 17 weeks before you fly. On this route, that window historically saves about 50% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Phnom Penh to London Heathrow Airport trip for July. Fares historically average $782 round-trip in that month - typically $887 less than the most expensive month, which is January (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.
    - Hilton London Heathrow Airport

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

Information on your arrival and departure airports

Phnom Penh (KTI)
Heathrow (LHR)