Cheap Flights from London to Siem Reap from CAD 703️ 2024

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Find London to Siem Reap flights starting at CAD 703.

Book one-way or return flights from London to Siem Reap from as little as CAD 703. Choose from the popular airlines below and book your flight today!

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Searching for the best last minute flight from London to Siem Reap? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from London to Siem Reap. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find Cheapest Airlines Flying from London to Siem Reap

View airlines operating flights from London to Siem Reap. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Vueling Airlines

From CAD 478

easyJet

From CAD 484

Saudia

From CAD 560

British Airways

From CAD 564

Shenzhen Airlines

From CAD 594

Wizz Air Malta

From CAD 609

Etihad Airways

From CAD 640

Air China

From CAD 641

China Southern Airlines

From CAD 644

Gulf Air

From CAD 653

ANA airlines

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Alternative Routes for London to Siem Reap Flights

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from London to Siem Reap.

Cheapest
LGW
18:40
40h 50m
2 transfer
SAI
17:30
London Gatwick Airport - Siem Reap Angkor International Airport
Tue, Jul 2Vueling Airlines
CAD 478
LTN
12:30
47h 0m
2 transfer
SAI
17:30
London Luton Airport - Siem Reap Angkor International Airport
Thu, May 30easyJet
CAD 484
SEN
11:25
48h 5m
2 transfer
SAI
17:30
London Southend Airport - Siem Reap Angkor International Airport
Mon, Apr 29easyJet
CAD 494
SEN
11:25
48h 5m
2 transfer
SAI
17:30
London Southend Airport - Siem Reap Angkor International Airport
Mon, Apr 29easyJet
CAD 494
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How do I find the cheapest flights?

When are flight tickets from London (LON) to Siem Reap (REP) the cheapest?
Airlines adjust prices for flights from London to Siem Reap based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from London (LON) to Siem Reap (REP) cost?
According to Trip.com's data, the lowest price is around CAD 1,490.
What is the transportation method from the main airport to downtown in Siem Reap?
- The distance from Siem Reap Angkor International Airport to downtown is about 39km, by taxi about 50 minutes.
How many airports in Siem Reap (REP)?
There are 2 airport(s) in Siem Reap (REP): Siem Reap International Airport and Siem Reap Angkor International Airport.

How to find a cheap flight from London to Siem Reap

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from London to Siem Reap. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com