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Cheap flights from London Luton Airport to Siem Reap from £324

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SAI
18 Aug — 25 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Luton to Siem Reap

Enter your travel dates to find the best prices.

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 19 July 2026.

Fri 24/708:00
LTN
-
SAI
3 stops31h 45m
Multiple Airlines
Fri 31/719:20
SAI
-
LTN
3 stops34h 30m
Multiple Airlines
Deal found 17/7£826
Tue 1/1207:45
LTN
-
SAI
3 stops28h 00m
Multiple Airlines
Wed 16/1217:55
SAI
-
LTN
2 stops26h 35m
Multiple Airlines
Deal found 17/7£893
Wed 7/1006:10
LTN
-
SAI
2 stops20h 35m
Multiple Airlines
Sat 17/1019:10
SAI
-
LTN
2 stops20h 15m
Multiple Airlines
Deal found 17/7£975
Wed 23/1205:55
LTN
-
SAI
3 stops30h 45m
Multiple Airlines
Mon 4/113:20
SAI
-
LTN
3 stops35h 50m
Multiple Airlines
Deal found 18/7£1,214

Find flight deals from Luton to Siem Reap

Keep the following information in mind while searching for Luton to Siem Reap flight deals. Data was last updated 19 July 2026.

Round-trip from

£893

One-way from

£324

Popular in

December

Cheapest in

July

Average price

£622
1/12-16/12
  • 1/12-16/12
  • 5 total stops
  • 54h 35m total
  • London to Siem Reap
Search Deals
30/9
  • 30/9
  • 3 total stops
  • 35h 45m total
  • London to Siem Reap
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£91 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Luton to Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 July 2026.
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 - SAI

LTNSAI

London Luton

Tue 1/12

07:45-18:45

3 stops28h 00m

Siem Reap–Angkor Intl

Wed 16/12

17:55-13:30

2 stops26h 35m

£893
Fastest return journey

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Wed 7/10

06:10-08:45

2 stops20h 35m

Siem Reap–Angkor Intl

Sat 17/10

19:10-09:25

2 stops20h 15m

£975

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Wed 23/12

05:55-19:40

3 stops30h 45m

Siem Reap–Angkor Intl

Mon 4/1

13:20-18:10

3 stops35h 50m

£1,214
Cheapest one-way

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Wed 30/9

15:15-09:00

3 stops35h 45m

£324

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Sun 22/11

19:45-12:40

3 stops57h 55m

£357

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Sat 21/11

06:05-20:00

3 stops30h 55m

£375

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Mon 3/8

08:15-10:05

3 stops43h 50m

£386

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Mon 28/12

06:10-21:00

3 stops31h 50m

£427
Fastest single journey

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Wed 7/10

07:05-09:00

2 stops19h 55m

£429

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Fri 31/7

15:15-18:05

3 stops44h 50m

£455

Flights are sorted by cheapest return flights first.

Deals found on 18/7

Showing 1-10 of 11 resultsSorted by cheapest first
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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.
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

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

Related info for your journey

Find useful and relevant information for your journey from Luton to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

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