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

Airlines like Emirates fly from London Stansted Airport to Siem Reap in about 39h 20m. The time it takes to get you to your destination can typically vary by up to . The distance from London Stansted Airport to Siem Reap is about 6068 mi.

In terms of precipitation, rainfall in 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 Siem Reap when rainfall is around 0.0 mm.

If weather is an important factor for your trip to 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 SAI?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Stansted Airport to Siem Reap as you normally would.

What airport do you fly into for flights to Siem Reap from London Stansted?

If you book a flight to Siem Reap from London Stansted, you will be flying to Siem Reap–Angkor Intl, which is the city’s only airport. Siem Reap–Angkor Intl (SAI) is located 24.7 mi from the center of Siem Reap. There are 0 flights from London Stansted to Siem Reap–Angkor Intl per day from 0 different airlines.

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.

£324+ Cheap Flights from London Stansted Airport to Siem Reap, Cambodia

Cheap flight deals from Stansted to Siem Reap

Enter your travel dates to find the best prices.

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Best

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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 16 September 2026.

Thu 26/1106:25 -

3 stops26h 40m

Fri 4/1219:05 -

3 stops31h 55m

Deal found 12/9£722

Wed 23/914:55 -

2 stops24h 35m

Tue 29/923:50 -

2 stops24h 55m

Deal found 15/9£731

Tue 22/921:05 -

2 stops42h 25m

Tue 20/1023:50 -

2 stops24h 55m

Deal found 12/9£731

Fri 18/914:55 -

2 stops24h 35m

Tue 29/923:50 -

2 stops24h 55m

Deal found 15/9£751

Wed 23/921:05 -

2 stops18h 25m

Wed 21/1012:55 -

2 stops35h 50m

Deal found 12/9£752

Mon 5/1000:20 -

3 stops28h 55m

Tue 12/115:45 -

2 stops27h 20m

Deal found 14/9£755

Tue 22/914:55 -

2 stops48h 35m

Tue 29/923:50 -

2 stops24h 55m

Deal found 15/9£757

Tue 22/921:05 -

2 stops42h 25m

Sat 24/1023:50 -

2 stops43h 15m

Deal found 12/9£757

Wed 23/914:55 -

2 stops24h 35m

Thu 1/1023:50 -

2 stops24h 55m

Deal found 15/9£760

Find flight deals from Stansted to Siem Reap

Round-trip from	£722
One-way from	£324
Popular in	December
Cheapest in	July
Average price	£769

26/11-4/12
6 total stops
58h 35m total
London to Siem Reap

Search Deals

3/11-31/12
3 total stops
24h 55m total
London to Siem Reap

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£44 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

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Tue 3/11

07:05-15:00

3 stops24h 55m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£324

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Sun 1/11

11:15-15:00

3 stops44h 45m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£335

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Tue 8/12

23:20-15:00

2 stops32h 40m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£346

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Wed 20/1

14:30-21:45

3 stops24h 15m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£372

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Sun 14/2

17:25-15:00

2 stops38h 35m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£381

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Thu 15/10

19:10-09:15

2 stops56h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£395

Fastest return journey

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Thu 14/1

17:00-21:45

3 stops21h 45m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£451

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Sat 26/9

14:55-12:15

2 stops39h 20m

Siem Reap–Angkor Intl

Tue 20/10

23:50-18:45

2 stops24h 55m

£789

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Sat 26/9

14:55-12:15

2 stops39h 20m

Siem Reap–Angkor Intl

Sat 24/10

23:50-13:05

2 stops43h 15m

£814

LondonSiem Reap

STN London Stansted - SAI Siem Reap–Angkor Intl

STNSAI

London Stansted

Sat 26/9

14:55-12:15

2 stops39h 20m

Siem Reap–Angkor Intl

Thu 22/10

23:50-18:45

2 stops24h 55m

£819

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 17 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.

Related info for your journey

What airport do you fly into for flights to Siem Reap from London Stansted?
If you book a flight to Siem Reap from London Stansted, you will be flying to Siem Reap–Angkor Intl, which is the city’s only airport. Siem Reap–Angkor Intl (SAI) is located 24.7 mi from the center of Siem Reap. There are 0 flights from London Stansted to Siem Reap–Angkor Intl per day from 0 different airlines.
How long is the flight from London Stansted Airport to Siem Reap?
Airlines like Emirates fly from London Stansted Airport to Siem Reap in about 39h 20m. The time it takes to get you to your destination can typically vary by up to . The distance from London Stansted Airport to Siem Reap is about 6068 mi.
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.

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Cheap flights from London Stansted Airport to Siem Reap, Cambodia from £324

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. 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 16 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 16 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 16 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 16 September 2026.

Last-minute flights from Stansted to Siem ReapDiscover last-minute flight deals from Stansted to Siem Reap. Data last updated 16 September 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Siem Reap. Data last updated 16 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 16 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 16 September 2026.

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

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.

Related info for your journey

What airport do you fly into for flights to Siem Reap from London Stansted?

How long is the flight from London Stansted Airport to 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 16 September 2026.

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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 16 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 16 September 2026.

Last-minute flights from Stansted to Siem Reap
Discover last-minute flight deals from Stansted to Siem Reap. Data last updated 16 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 16 September 2026.