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 LTN to SI?

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 Region of Siem Reap as you normally would.

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.

£322+ Cheap Flights from London Luton Airport to Siem Reap

Cheap flight deals from Luton to Siem Reap

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 5 November 2026.

Wed 9/1208:05 -

3 stops27h 25m

Thu 24/1217:55 -

2 stops26h 05m

Deal found 1/11£726

Wed 9/1208:05 -

3 stops27h 25m

Tue 29/1220:30 -

2 stops21h 00m

Deal found 1/11£755

Thu 10/1206:00 -

3 stops29h 05m

Thu 24/1217:55 -

2 stops26h 05m

Deal found 1/11£784

Thu 3/1216:25 -

2 stops19h 05m

Wed 16/1217:55 -

2 stops26h 35m

Deal found 3/11£914

Sat 14/1107:35 -

3 stops28h 45m

Sat 21/1123:50 -

2 stops24h 10m

Deal found 1/11£946

Thu 17/1206:00 -

3 stops29h 05m

Thu 24/1220:30 -

2 stops23h 30m

Deal found 2/11£983

Mon 28/1205:00 -

3 stops26h 50m

Mon 11/115:35 -

3 stops26h 00m

Deal found 31/10£993

Sat 26/1204:30 -

3 stops27h 20m

Sun 10/118:55 -

3 stops29h 40m

Deal found 31/10£1,081

Tue 22/1204:30 -

3 stops27h 20m

Sun 31/118:55 -

3 stops27h 20m

Deal found 4/11£1,083

Fri 25/1206:00 -

3 stops26h 50m

Fri 8/110:00 -

3 stops31h 50m

Deal found 31/10£1,198

Find flight deals from Luton to Siem Reap

Round-trip from	£726
One-way from	£322
Popular in	December
Cheapest in	July
Average price	£773

9/12-24/12
5 total stops
53h 30m total
London to Siem Reap

Search Deals

30/11-31/12
3 total stops
44h 55m total
London to Siem Reap

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (£49 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 November 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

Mon 30/11

05:00-08:55

3 stops44h 55m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£322

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Tue 5/1

09:10-20:25

3 stops52h 15m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£365

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Mon 23/11

19:05-16:05

3 stops38h 00m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£390

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Mon 4/1

09:10-16:55

3 stops48h 45m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£392

Fastest return journey

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Wed 25/11

05:00-14:50

3 stops26h 50m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£393

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Tue 17/11

11:20-18:05

3 stops47h 45m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£398

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Sun 22/11

19:45-14:50

3 stops36h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£401

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Thu 19/11

16:45-09:55

2 stops34h 10m

Siem Reap–Angkor Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£425

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Wed 9/12

08:05-18:30

3 stops27h 25m

Siem Reap–Angkor Intl

Thu 24/12

17:55-13:00

2 stops26h 05m

£726

LondonSiem Reap

LTN London Luton - SAI Siem Reap–Angkor Intl

LTNSAI

London Luton

Wed 9/12

08:05-18:30

3 stops27h 25m

Siem Reap–Angkor Intl

Tue 29/12

20:30-13:25

3 stops23h 55m

£816

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 17 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.

Cheapflights Insights

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

LTN-KHSI

LTN-SAI

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

Related info for your journey

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.

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to

Flights by cabin class

Other flight options

Popular flights

Alternative routes for Luton to Siem Reap

Heathrow to Siem Reap flights

London City to Siem Reap flights

Gatwick to Siem Reap flights

Stansted to Siem Reap flights

Luton to Siem Reap flights

Gatwick to Krong Preah Sihanouk flights

Heathrow to Krong Preah Sihanouk flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Siem Reap from Luton today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Luton to Siem Reap by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Siem Reap from Luton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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 from £322

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/11. 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 5 November 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 5 November 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 5 November 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 5 November 2026.

Last-minute flights from Luton to Siem ReapDiscover last-minute flight deals from Luton to Siem Reap. Data last updated 5 November 2026 and is based on user searches.

Discover last-minute flight deals from Luton to Siem Reap. Data last updated 5 November 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 5 November 2026.

Search for one-way flight options from Luton to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Find flight deals from Luton to Siem Reap

Round-trip from

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Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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.

Cheapflights Insights

Related info for your journey

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.

Direct flights to

Book a non-stop flight to one of these other cities located in .

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 5 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

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

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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Book with Flexibility

Travel Smart

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 5 November 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 5 November 2026.

Last-minute flights from Luton to Siem Reap
Discover last-minute flight deals from Luton to Siem Reap. Data last updated 5 November 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 5 November 2026.