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 LTN to SAI?

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

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

If you book a flight to Siem Reap from London Luton, 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 Luton to Siem Reap–Angkor Intl per day from 0 different airlines.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Luton 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.

£330+ Cheap Flights from London Luton Airport to Siem Reap, Cambodia

Cheap flight deals from Luton to Siem Reap

Enter your travel dates to find the best prices.

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Cheapest flights from Luton to Siem Reap
Explore the most affordable flight options available from Luton to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Thu 24/907:00 -

3 stops29h 55m

Wed 7/1012:55 -

3 stops31h 30m

Deal found 18/9£726

Sat 12/1207:15 -

2 stops18h 30m

Fri 8/119:10 -

3 stops30h 00m

Deal found 21/9£1,203

Find flight deals from Luton to Siem Reap

Round-trip from	£812
One-way from	£330
Popular in	December
Cheapest in	July
Average price	£771

1/2-22/2
6 total stops
56h 25m total
London to Siem Reap

Search Deals

9/11-31/12
3 total stops
27h 00m total
London to Siem Reap

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£45 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£23 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 Luton Airport to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Tue 8/12

19:45-15:00

3 stops36h 15m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£350

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Mon 26/10

19:05-16:05

3 stops38h 00m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£371

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Sat 13/3

15:05-09:55

2 stops35h 50m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£387

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Sun 24/1

19:45-15:00

3 stops36h 15m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£394

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Thu 21/1

18:55-15:00

3 stops37h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£397

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Mon 14/12

05:00-15:00

3 stops27h 00m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£405

Fastest return journey

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Sun 7/2

08:40-16:05

3 stops24h 25m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£407

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Mon 19/10

06:45-14:50

3 stops26h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£409

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Wed 20/1

05:00-15:00

3 stops27h 00m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£417

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Wed 3/2

08:20-16:05

3 stops24h 45m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£420

Flights are sorted by cheapest return flights first.

Deals found on 19/9

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from Luton to Siem Reap

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

LTN-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 Luton?
If you book a flight to Siem Reap from London Luton, 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 Luton to Siem Reap–Angkor Intl per day from 0 different airlines.
Can I find deals for flights from Luton to Siem Reap that include hotel bookings?
Yes. In addition to deals on Luton to Siem Reap flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Luton to Siem Reap?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luton to Siem Reap.
Can I find deals for business class flights from Luton to Siem Reap?
Yes. Cheapflights offers flight deals from Luton 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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Cheapflights helps you search for flights from Luton 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 Luton 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 Luton.

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

Certainly. Search results for flights to Siem Reap from Luton shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Not ready to book yet? You can track prices for flights from Luton to Siem Reap on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from London Luton Airport to Siem Reap, Cambodia from £330

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Luton to Siem Reap

Cheapest flights from Luton to Siem ReapExplore the most affordable flight options available from Luton to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Explore the most affordable flight options available from Luton to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Best flights from Luton to Siem ReapDiscover carefully curated flight deals from Luton to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Discover carefully curated flight deals from Luton to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Last-minute flights from Luton to Siem ReapDiscover last-minute flight deals from Luton to Siem Reap. Data last updated 21 September 2026 and is based on user searches.

Discover last-minute flight deals from Luton to Siem Reap. Data last updated 21 September 2026 and is based on user searches.

One-way flights from Luton to Siem ReapSearch for one-way flight options from Luton to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

Search for one-way flight options from Luton to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

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

Best time to book a flight from Luton to Siem Reap

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

Related info for your journey

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Luton to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

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

Search flights from Luton to Siem Reap by cabin class

Find flights from Luton to Siem Reap, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Luton and Siem Reap flights

Browse other Luton and Siem Reap flight options. Last updated on 21 September 2026.

Other flights from Luton

Browse through other flights departing from Luton. Flights are based on user searches made on Cheapflights and were last updated on 21 September 2026.

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Check out other popular destinations found by fellow travellers in 2026

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

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

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

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Cheapest flights from Luton to Siem Reap
Explore the most affordable flight options available from Luton to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Best flights from Luton to Siem Reap
Discover carefully curated flight deals from Luton to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Last-minute flights from Luton to Siem Reap
Discover last-minute flight deals from Luton to Siem Reap. Data last updated 21 September 2026 and is based on user searches.

One-way flights from Luton to Siem Reap
Search for one-way flight options from Luton to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.