How long is the flight from London Stansted Airport to Region of Siem Reap?

Emirates can get you from London Stansted Airport to Region of Siem Reap in just under 24h 35m. Your travel time can differ by up to . There are 6068 mi between London Stansted Airport and Region of Siem Reap.

In terms of precipitation, rainfall in Region of Siem Reap ranges from 0.0 - 260.0 inches per month. September is typically the wettest month, when rainfall can reach 260.0 mm. January is typically the driest time to visit Region of Siem Reap when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Region of Siem Reap, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 24.0 C).

What is the cheapest time of day to fly from STN to SI?

When flying from London Stansted Airport to Region of 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.

Can I find deals for flights from Stansted to Siem Reap that include hotel bookings?

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

How can I find direct flights from Stansted to Siem Reap?

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

Can I find deals for business class flights from Stansted to Siem Reap?

Yes. Cheapflights offers flight deals from Stansted 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.

£342+ Cheap Flights from London Stansted Airport to Siem Reap

Cheap flight deals from Stansted to Siem Reap

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Stansted to Siem Reap
Explore the most affordable flight options available from Stansted to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 September 2026.

Sun 27/921:05 -

2 stops42h 25m

Tue 27/1023:50 -

2 stops25h 05m

Deal found 18/9£730

Sun 27/921:05 -

2 stops42h 25m

Tue 20/1023:50 -

2 stops24h 55m

Deal found 17/9£734

Wed 23/914:55 -

2 stops24h 35m

Tue 29/923:50 -

2 stops24h 55m

Deal found 15/9£737

Tue 29/914:55 -

2 stops48h 35m

Tue 27/1023:50 -

2 stops25h 05m

Deal found 18/9£755

Fri 18/914:55 -

2 stops24h 35m

Tue 29/923:50 -

2 stops24h 55m

Deal found 15/9£757

Sun 27/921:05 -

2 stops42h 25m

Sat 24/1023:50 -

2 stops43h 15m

Deal found 17/9£760

Mon 5/1000:20 -

3 stops28h 55m

Tue 12/115:45 -

2 stops27h 20m

Deal found 14/9£761

Tue 22/914:55 -

2 stops48h 35m

Tue 29/923:50 -

2 stops24h 55m

Deal found 15/9£763

Sun 27/921:05 -

2 stops42h 25m

Thu 22/1023:50 -

2 stops24h 55m

Deal found 17/9£764

Wed 23/914:55 -

2 stops24h 35m

Thu 1/1023:50 -

2 stops24h 55m

Deal found 15/9£766

Wed 30/914:55 -

2 stops24h 35m

Tue 20/1023:50 -

2 stops24h 55m

Deal found 17/9£769

Mon 21/921:05 -

2 stops18h 25m

Tue 29/923:50 -

2 stops19h 15m

Deal found 15/9£790

Find flight deals from Stansted to Siem Reap

Round-trip from	£755
One-way from	£342
Popular in	December
Cheapest in	July
Average price	£772

Emirates
29/9-27/10
4 total stops
73h 40m total
London to Siem Reap

Search Deals

8/12-31/12
2 total stops
43h 05m total
London to Siem Reap

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£46 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Stansted Airport to Siem Reap that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Thu 1/10

06:00-11:10

3 stops47h 10m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£366

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Tue 20/10

08:30-14:05

3 stops23h 35m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£394

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Tue 10/11

11:50-16:10

2 stops21h 20m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£565

Fastest return journey

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Wed 23/9

21:05-21:30

2 stops18h 25m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£581

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Tue 22/9

21:05-21:30

2 stops42h 25m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£582

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Thu 24/9

21:05-21:30

2 stops42h 25m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£582

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Sat 28/11

14:05-12:40

2 stops39h 35m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£622

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Thu 15/10

21:05-21:30

2 stops42h 25m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£753

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Mon 28/9

14:55-21:30

2 stops24h 35m

Siem Reap–Angkor Intl

Sat 24/10

23:50-13:05

2 stops43h 15m

£760

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Mon 5/10

00:20-11:15

3 stops28h 55m

Siem Reap–Angkor Intl

Tue 12/1

15:45-12:05

2 stops27h 20m

£761

Flights are sorted by cheapest return flights first.

Deals found on 19/9

Showing 1-10 of 22 resultsSorted by cheapest first

Best time to book a flight from Stansted to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Stansted with our price prediction graph.

STN-SAI

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Stansted Airport to Siem Reap

STN-KHSI

STN-SAI

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from London Stansted Airport to Region of Siem Reap?
Emirates can get you from London Stansted Airport to Region of Siem Reap in just under 24h 35m. Your travel time can differ by up to . There are 6068 mi between London Stansted Airport and Region of Siem Reap.
Can I find deals for flights from Stansted to Siem Reap that include hotel bookings?
Yes. In addition to deals on Stansted to Siem Reap flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Stansted to Siem Reap?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to Siem Reap.
Can I find deals for business class flights from Stansted to Siem Reap?
Yes. Cheapflights offers flight deals from Stansted 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.

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Cheapflights makes it easy to find Stansted to Siem Reap flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Stansted 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 Stansted.

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

Yes, we can. To see specific flights from Stansted to Siem Reap with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Cheap flights from London Stansted Airport to Siem Reap from £342

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Stansted to Siem Reap

Cheapest flights from Stansted to Siem ReapExplore the most affordable flight options available from Stansted to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 September 2026.

Explore the most affordable flight options available from Stansted to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 September 2026.

Best flights from Stansted to Siem ReapDiscover carefully curated flight deals from Stansted to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Discover carefully curated flight deals from Stansted to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Last-minute flights from Stansted to Siem ReapDiscover last-minute flight deals from Stansted to Siem Reap. Data last updated 19 September 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Siem Reap. Data last updated 19 September 2026 and is based on user searches.

One-way flights from Stansted to Siem ReapSearch for one-way flight options from Stansted to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

Search for one-way flight options from Stansted to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

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Best time to book a flight from Stansted to Siem Reap

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Cheapflights Insights

Related info for your journey

How long is the flight from London Stansted Airport to Region of Siem Reap?

Can I find deals for flights from Stansted to Siem Reap that include hotel bookings?

How can I find direct flights from Stansted to Siem Reap?

Can I find deals for business class flights from Stansted to Siem Reap?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Stansted to Siem Reap

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Complete your trip

Complete your trip to Siem Reap by adding a car hire and/or hotel booking to your travel itinerary.

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Stansted and Siem Reap flights

Browse other Stansted and Siem Reap flight options. Last updated on 19 September 2026.

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

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Cheapest flights from Stansted to Siem Reap
Explore the most affordable flight options available from Stansted to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 September 2026.

Best flights from Stansted to Siem Reap
Discover carefully curated flight deals from Stansted to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Last-minute flights from Stansted to Siem Reap
Discover last-minute flight deals from Stansted to Siem Reap. Data last updated 19 September 2026 and is based on user searches.

One-way flights from Stansted to Siem Reap
Search for one-way flight options from Stansted to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.