Cheap Flights Phnom Penh to London from £189

Flight FAQs

• Which airlines offer the cheapest flights from Phnom Penh to London?

  Based on Trip.com data, Xiamen Airlines offers Cheapest nonstop one-way flights from £189 (for example, KTI–LHR on Wed, Oct 21). For a Cheapest nonstop return flight, Xiamen Airlines offers fares from £450, departing on Fri, Nov 13 and returning on Thu, Nov 19.

• Which airlines offer direct flights from Phnom Penh to London?

  At the moment, you can catch a direct flight from Phnom Penh to London with the following airlines, including: Qatar Airways Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Phnom Penh to London?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Phnom Penh to London is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Phnom Penh to London?

  Here are some tips for finding the best flight deals from Phnom Penh to London on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Wed, Oct 21, with one-way fares from just £189.
  · Compare airlines. Xiamen Airlines currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. January is generally the busiest month for travel to London.
  · Get exclusive promo codes on the Trip.com app.

• When is the best time to book a flight from Phnom Penh to London to get the best price?

  The cheapest month to book a flight from Phnom Penh to London is usually August, when demand is lower.

• Which upcoming date is the cheapest for flights from Phnom Penh to London?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Phnom Penh to London on October 23, 2026 with China Southern Airlines, with prices starting at £188.

• Which airports should you choose for flights from Phnom Penh to London?

  Flights to London can arrive at: London City Airport (LCY), London Gatwick Airport (LGW), Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN) and London Stansted Airport (STN). The most common route connects Techo International Airport and Heathrow Airport (KTI–LHR).

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

  The time difference between London and Phnom Penh is 7h.

• How can I change or cancel my flight ticket from Phnom Penh to London?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average price of a one-way flight from Phnom Penh to London?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Phnom Penh to London is £439. Fares vary by travel date, airline and availability.

• How do I book flights from Phnom Penh to London on Trip.com?

  Enter Phnom Penh and London, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

• Are there budget airlines on the Phnom Penh to London route?

  AirAsia Cambodiaare the most popular budget airlines flying from Phnom Penh to London. Check baggage, seat and payment fees before comparing the final price.