Find cheap flights from London to Siem Reap

LON - REP

Find cheap flights from London to Siem Reap

Search hundreds of travel sites at once for deals on flights to Siem Reap. Bundle your flight + hotel and save!

Return
Economy
London (LON)
Siem Reap
Thu 21/10
Thu 28/10
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Good to know - Cheap tickets from London to Siem Reap

Low season

SeptemberBest time to beat the crowds (19% less expensive on average)

High season

DecemberMost popular time to fly (35% more expensive on average)

Average price (return flight)

£600(avg. price over the last 2 weeks)

Good deal (return flight)

£484or less

Good deal one-way

£315or less

When to book flights from London to Siem Reap

Estimated return price
Average price per month
Flight prices as travel date approaches

Top tips for finding a cheap flight from London to Siem Reap

  • Looking for a cheap flight from Siem Reap to London? 25% of our users found flights on this route for £315 or less one-way and £484 or less round-trip.
  • The cheapest flight from London to Siem Reap was found, on average, 73 days before departure.
  • Book at least 1 week before departure in order to get a below-average price for flights from London to Siem Reap.
  • High season is considered to be November, December, and January. The cheapest month to fly from London to Siem Reap is September.

FAQs for booking flights from London to Siem Reap

How long does a flight from London to Siem Reap take?

How does KAYAK find such low prices on flights from London to Siem Reap?

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What is the Hacker Fare option on flights from London to Siem Reap?

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

COVID-19 information

Safety measures for airlines flying from London to Siem Reap

Airlines flying from London to Siem Reap have enacted additional safety measures and adjusted policies to better accommodate travellers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from London to Siem Reap

Mandatory masks

Masks required on board, masks provided on flights from London to Siem Reap

Social distancing seating

Middle seats unavailable to book on flights from London to Siem Reap

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from London to Siem Reap

Book cheap flights from London to Siem Reap

Cheapest flights to Siem Reap from London found in 2021 and 2022

Recent return flight deals

6/1
Thu
2 stops
Multiple Airlines
39h 10m
LHR - REP
6/4
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2 stops
Multiple Airlines
25h 20m
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6/1
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39h 10m
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27h 55m
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6/1
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39h 10m
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21h 55m
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1/3
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38h 25m
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54h 15m
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1/3
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38h 25m
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61h 15m
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Multiple Airlines
27h 55m
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30h 35m
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3/2
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39h 10m
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