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Cheap flights from London Luton Airport to Siem Reap from £334

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SAI
8 Jun — 15 Jun1
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 9 May 2026.

Tue 15/909:15
LTN
-
SAI
2 stops21h 00m
Multiple Airlines
Mon 28/918:05
SAI
-
LTN
2 stops22h 30m
Multiple Airlines
Deal found 6/5£1,054
Fri 4/1207:00
LTN
-
SAI
2 stops26h 55m
Multiple Airlines
Fri 18/1213:20
SAI
-
LTN
2 stops31h 10m
Multiple Airlines
Deal found 8/5£1,071
Thu 11/615:40
LTN
-
SAI
3 stops21h 15m
Multiple Airlines
Thu 25/619:10
SAI
-
LTN
2 stops20h 15m
Multiple Airlines
Deal found 7/5£1,167
Sun 8/1107:00
LTN
-
SAI
2 stops19h 10m
Multiple Airlines
Tue 8/1220:30
SAI
-
LTN
2 stops20h 55m
Multiple Airlines
Deal found 4/5£1,226

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 9 May 2026.

Round-trip from

£1,054

One-way from

£334

Popular in

December

Cheapest in

September

Average price

£737
15/9-28/9
  • 15/9-28/9
  • 4 total stops
  • 43h 30m total
  • London to Siem Reap
Search Deals
14/5
  • 14/5
  • 3 total stops
  • 39h 05m total
  • London to Siem Reap
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£46 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 May 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 9 May 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 15/9

09:15-12:15

2 stops21h 00m

Siem Reap–Angkor Intl

Mon 28/9

18:05-10:35

2 stops22h 30m

£1,054
Fastest return journey

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Thu 11/6

15:40-18:55

3 stops21h 15m

Siem Reap–Angkor Intl

Thu 25/6

19:10-09:25

2 stops20h 15m

£1,167
Cheapest one-way

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Sun 14/6

20:55-16:35

3 stops37h 40m

£428

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Wed 20/5

19:55-09:05

3 stops31h 10m

£431

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Thu 14/5

08:00-18:45

2 stops28h 45m

£443

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Tue 16/6

07:05-18:55

2 stops29h 50m

£476
Fastest single journey

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Mon 22/6

07:00-09:00

2 stops20h 00m

£512

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Mon 5/10

19:40-18:20

2 stops40h 40m

£512

Flights are sorted by cheapest return flights first.

Deals found on 4/5

Sorted 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.
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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