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Cheap flights from the United Kingdom to Siem Reap, Cambodia

LHR — SAI
8 Jul — 15 Jul1
1 adult

Cheap flight deals from United Kingdom to Siem Reap

Keep the following information in mind while searching for United Kingdom to Siem Reap flight deals. Data was last updated 3 July 2025.

Popular in

December

Cheapest in

September

Average price

£1,037
Highest demand for flights based on searches. 6% potential increase in price (£46 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£31 potential savings vs. average return price).
Average for round-trip flights in July 2025

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Siem Reap

What is the cheapest time of day to fly from GB to SAI?

Find hourly flight availability from United Kingdom to Siem Reap. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 July 2025.

When flying from United Kingdom to Siem Reap, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Siem Reap from United Kingdom?

    Siem Reap–Angkor Intl (SAI) is the airport you will fly into if you book a flight from United Kingdom to Siem Reap. It is only a 24.7 mi journey from Siem Reap–Angkor Intl (SAI) to Siem Reap’s city center.

  • Can I find deals for flights from United Kingdom to Siem Reap that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Siem Reap flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Siem Reap.

  • Can I find deals for business class flights from United Kingdom to Siem Reap?

    Yes. Cheapflights offers flight deals from United Kingdom to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 5 airlines flying from United Kingdom to Siem Reap

Discover the top 5 airlines that operate flights from United Kingdom to Siem Reap. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapest£620Average£742FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Singapore AirlinesCheapest£642Average£733FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
LufthansaCheapest£747Average£760FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Thai AirwaysCheapest£800Average£930FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
EmiratesCheapest£878Average£952FlexibilityNo cancel feeOn-time75%
Search Emirates flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to Siem Reap?

Cheapflights helps you search for flights from United Kingdom to Siem Reap via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Siem Reap?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Siem Reap from United Kingdom.

Can Cheapflights find flights from United Kingdom to Siem Reap with no change fees?

Yes! Cheapflights helps users easily find flights from United Kingdom to Siem Reap with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to Siem Reap become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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