Cheap flights from London Heathrow Airport to Siem Reap

Return
1 adult
Economy
From?
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Sat 25/9
Sat 2/10

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from London Heathrow to Siem Reap.
View current Cambodia travel restrictions

Flight information for London Heathrow Airport to Siem Reap
(LHR to REP)

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Siem Reap
Fastest flight time31h 55mThe fastest flight from London Heathrow Airport to Siem Reap takes 31h 55m
Direct flightsNoneThere are no direct flights from London Heathrow Airport to Siem Reap. Popular non-direct route for this connection is London Heathrow Airport - Siem Reap Airport.
Airports in Siem Reap1 airportThere is 1 airport near Siem Reap: Siem Reap (REP)

How to get the cheapest flight ticket from London Heathrow Airport to Siem Reap

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from London Heathrow Airport to Siem Reap?

September

The cheapest time of year to fly to Siem Reap from London Heathrow Airport is September. The most expensive is December.

What is the cheapest airline that flies to Siem Reap from London Heathrow Airport?

China Southern

Cathay Pacific, China Southern, and Singapore Airlines are the most popular carriers operating from London Heathrow Airport to Siem Reap

How far in advance should you book London Heathrow Airport to Siem Reap flights?

45 days before

The cheapest time to buy a flight from London Heathrow Airport to Siem Reap is approximately 45 days to departure


Easily compare return flights from London Heathrow Airport to Siem Reap

Below you can see the best fares for your return flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from London Heathrow Airport to Siem Reap by changing tabs
Cathay Pacific
LHRLondon Heathrow
31h 55m
REPSiem Reap

Find the cheapest one-way flights from London Heathrow Airport to Siem Reap

If you're looking for one-way flights from London Heathrow Airport to Siem Reap, view some of our deals below provided by Cathay Pacific
Cathay Pacific
LHRLondon Heathrow
31h 55m
REPSiem Reap

Best airlines flying from London Heathrow Airport to Siem Reap

Compare and see reviews for airlines that fly from London Heathrow Airport to Siem Reap with momondo
AirlineRatingFree cancellationPrice
China Southern
PriceFrom £332
Free cancellation
Rating
6.9
Singapore Airlines
PriceFrom £449
Free cancellation
Rating
8.4
Thai Airways
PriceFrom £458
Free cancellation
Rating
7.4
Vietnam Airlines
PriceFrom £478
Free cancellation
Rating
5.4
Cathay Pacific
PriceFrom £497
Free cancellation
Rating
8.1

  • Are airlines flying from London Heathrow to Siem Reap offering flexible cancellation due to COVID-19?

    To ease the stress of booking flights, some of our airline partners flying from London Heathrow to Siem Reap are responding to the global pandemic. The following airlines may have a flexible cancellation policy to help accommodate travellers: Thai Airways, China Southern, and Vietnam Airlines.

  • How far is London Heathrow to Siem Reap by plane?

    The straight-line distance from London Heathrow to Siem Reap is 6091.7 mi. Typically, this will take 16h 45m by plane in normal conditions.


Can I fly to Siem Reap from London Heathrow right now?

Information is based on travel restrictions from London Heathrow to Siem Reap

Most visitors from London Heathrow will not be allowed to enter Siem Reap.

COVID-19 testing requirements
Visitors from London Heathrow must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Siem Reap.

Quarantine requirements
Visitors from London Heathrow are not required to quarantine after entering Siem Reap.

Can I fly back to London Heathrow from Siem Reap?

Returning to London Heathrow from Siem Reap

COVID-19 testing requirements
Visitors from Siem Reap must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London Heathrow.

Quarantine requirements
Visitors from Siem Reap are not required to quarantine after entering London Heathrow.

If you are planning to travel to Siem Reap at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

Alternative routes for London Heathrow Airport to Siem Reap

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
London to Siem Reap Flights
Fastest flight time20h 10m
Cheapest price£1,128


Flights to other cities in Cambodia

Lost the lust for Siem Reap? Check out some flights to other cities in Cambodia