Flights to Siem Reap

£547 Cheap flights to Siem Reap

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to Siem Reap departing on 5/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Recent flights found to popular cities in Siem Reap

Find flights to these popular cities in Siem Reap from your nearest airport.
China Eastern
5 Mar
LGW
51h 30m
2 stops
SAI
24 Mar
SAI
47h 00m
2 stops
LGW
£547
Multiple Airlines
15 Mar
LGW
45h 00m
3 stops
SAI
22 Mar
SAI
23h 20m
2 stops
LGW
£567
Multiple Airlines
15 Mar
LGW
45h 00m
3 stops
SAI
22 Mar
SAI
23h 20m
2 stops
LGW
£571
China Eastern
8 Mar
LHR
41h 00m
3 stops
SAI
1 Apr
SAI
27h 30m
2 stops
LHR
£577
Multiple Airlines
9 Mar
LHR
29h 10m
2 stops
SAI
1 Apr
SAI
27h 30m
2 stops
LHR
£586
SWISS
30 Apr
LGW
27h 20m
2 stops
SAI
6 May
SAI
22h 20m
2 stops
LGW
£586
SWISS
30 Apr
LHR
28h 05m
2 stops
SAI
6 May
SAI
21h 55m
2 stops
LHR
£589
China Eastern
2 Mar
LGW
27h 30m
3 stops
SAI
26 Mar
SAI
39h 30m
3 stops
LGW
£596
Multiple Airlines
15 Mar
LGW
33h 10m
2 stops
SAI
22 Mar
SAI
23h 20m
2 stops
LGW
£600
Multiple Airlines
24 Feb
LHR
29h 35m
1 stop
SAI
3 Mar
SAI
50h 30m
2 stops
LHR
£601
Multiple Airlines
15 Mar
LGW
39h 40m
2 stops
SAI
22 Mar
SAI
23h 20m
2 stops
LGW
£603
Multiple Airlines
15 Mar
LGW
45h 00m
3 stops
SAI
22 Mar
SAI
41h 45m
2 stops
LGW
£604

Find the cheapest flights from the United Kingdom to Siem Reap

Recent return flight deals from the United Kingdom to Siem Reap

Enter your travel dates to find the best prices.
China Eastern Logo
10:30 - 21:00
LGW
-
SAI
27h 30m
2 stops
China Eastern Logo
22:00 - 14:00
SAI
-
LGW
47h 00m
2 stops
£543China Eastern
Wed, 4 Mar - Tue, 24 Mar
China Eastern Logo
10:30 - 21:00
LGW
-
SAI
27h 30m
3 stops
China Eastern Logo
22:00 - 14:00
SAI
-
LGW
47h 00m
2 stops
£547China Eastern
Wed, 4 Mar - Tue, 24 Mar
Multiple Airlines Logo
19:25 - 18:40
LHR
-
SAI
16h 15m
2 stops
Multiple Airlines Logo
16:45 - 08:05
SAI
-
LHR
22h 20m
2 stops
£563Multiple Airlines
Tue, 3 Mar - Tue, 24 Mar
Multiple Airlines Logo
17:00 - 21:00
LGW
-
SAI
45h 00m
3 stops
Multiple Airlines Logo
21:40 - 14:00
SAI
-
LGW
23h 20m
2 stops
£567Multiple Airlines
Sun, 15 Mar - Sun, 22 Mar
SWISS Logo
09:25 - 18:45
LGW
-
SAI
27h 20m
2 stops
SWISS Logo
16:00 - 08:20
SAI
-
LGW
22h 20m
2 stops
£586SWISS
Thu, 30 Apr - Wed, 6 May
SWISS Logo
08:40 - 18:45
LHR
-
SAI
28h 05m
2 stops
SWISS Logo
16:00 - 07:55
SAI
-
LHR
21h 55m
2 stops
£589SWISS
Thu, 30 Apr - Wed, 6 May
Emirates Logo
20:15 - 21:10
STN
-
SAI
17h 55m
2 stops
Emirates Logo
23:50 - 12:05
SAI
-
STN
43h 15m
2 stops
£748Emirates
Mon, 2 Mar - Tue, 24 Mar
Emirates Logo
14:05 - 21:10
STN
-
SAI
48h 05m
2 stops
Emirates Logo
23:50 - 17:55
SAI
-
STN
25h 05m
2 stops
£749Emirates
Sun, 1 Mar - Tue, 24 Mar
Singapore Airlines Logo
10:05 - 15:55
MAN
-
SAI
22h 50m
1 stop
Singapore Airlines Logo
16:45 - 22:30
SAI
-
MAN
36h 45m
2 stops
£1,061Singapore Airlines
Sun, 22 Feb - Mon, 9 Mar
Singapore Airlines Logo
10:05 - 15:55
MAN
-
SAI
22h 50m
1 stop
Singapore Airlines Logo
16:45 - 08:35
SAI
-
MAN
46h 50m
1 stop
£1,072Singapore Airlines
Sun, 22 Feb - Mon, 9 Mar

momondo Fare Finder

 
Locate flights to Siem Reap that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 28 January 2026.
Use the filters below to find and compare flights to Siem Reap that are best for you.

Fly from

Route

Depart

Return

Price

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/3

10:30-21:00

2 stops27h 30m

Siem Reap–Angkor Intl

Tue 24/3

22:00-14:00

2 stops47h 00m

£543

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/3

10:30-21:00

3 stops27h 30m

Siem Reap–Angkor Intl

Tue 24/3

22:00-14:00

2 stops47h 00m

£547

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Tue 3/3

19:25-18:40

2 stops16h 15m

Siem Reap–Angkor Intl

Tue 24/3

16:45-08:05

2 stops22h 20m

£563

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Sun 15/3

17:00-21:00

3 stops45h 00m

Siem Reap–Angkor Intl

Sun 22/3

21:40-14:00

2 stops23h 20m

£567

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Thu 30/4

09:25-18:45

2 stops27h 20m

Siem Reap–Angkor Intl

Wed 6/5

16:00-08:20

2 stops22h 20m

£586

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Thu 30/4

08:40-18:45

2 stops28h 05m

Siem Reap–Angkor Intl

Wed 6/5

16:00-07:55

2 stops21h 55m

£589

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Mon 2/3

20:15-21:10

2 stops17h 55m

Siem Reap–Angkor Intl

Tue 24/3

23:50-12:05

2 stops43h 15m

£748

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Sun 1/3

14:05-21:10

2 stops48h 05m

Siem Reap–Angkor Intl

Tue 24/3

23:50-17:55

2 stops25h 05m

£749

ManchesterSiem Reap

MAN - SAI

MANSAI

Manchester

Sun 22/2

10:05-15:55

1 stop22h 50m

Siem Reap–Angkor Intl

Mon 9/3

16:45-22:30

2 stops36h 45m

£1,061

ManchesterSiem Reap

MAN - SAI

MANSAI

Manchester

Sun 22/2

10:05-15:55

1 stop22h 50m

Siem Reap–Angkor Intl

Mon 9/3

16:45-08:35

1 stop46h 50m

£1,072

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Siem Reap from

Siem Reap flights insights and trends

Explore insights for your Siem Reap flight to craft the best travel plan

Which airlines fly to Region of Siem Reap?

Singapore Airlines, Vietnam Airlines and Emirates are the top three most popular airlines that fly to Region of Siem Reap from United Kingdom according to our data. Singapore Airlines is the first choice among our users, with 60% of people opting to fly with this airline when travelling to Region of Siem Reap. Keep in mind that there are 6 different airlines that fly to Region of Siem Reap on a routine basis, so you have a few additional options to choose from.

Cheapest flights to cities in Siem Reap

Click on the cities below to find out when it's cheapest to fly to Siem Reap from United Kingdom
Siem Reap
Siem Reap

Cheap Siem Reap flight deals and tips

Summary info about Siem Reap flight prices, duration and airlines

Best One-Way Price

£303

Best Round-Trip Price

£543

Fastest flight time

24h 05m

Popular in

November
The best one-way flight price to Siem Reap from United Kingdom in the last 72 hours is £303 (London Stansted to Siem Reap–Angkor Intl).
The best round-trip flight price to Siem Reap from United Kingdom in the last 72 hours is £543 (London Gatwick to Siem Reap–Angkor Intl).
The fastest flight to Siem Reap from United Kingdom takes 24h 05m (London Gatwick to Siem Reap–Angkor Intl).
November has the highest demand for flights to Siem Reap, with a 1% price increase on average.

Frequently asked questions about flying to Siem Reap

What is the cheapest flight I can find to Region of Siem Reap?

Flights to Region of Siem Reap vary based on month, airline, when you book, where you are departing from and many more variables, but on average momondo users can expect to spend about £89/pp. The absolute cheapest flight to Region of Siem Reap is £30/pp

What is the best airport to fly into to visit Siem Reap?

What are the most popular landmarks in Region of Siem Reap?

What is the weather like in Region of Siem Reap?

Temperatures in Region of Siem Reap can vary between 24 °C and 29 °C based on the time of year. Typically, the coldest month in Region of Siem Reap will be December, and the warmest month will be April. It is also worth noting that those looking to avoid rain and/or snow should consider travelling to Region of Siem Reap in January, February, and February, as that is when precipitation is least likely.

Which airlines fly to Region of Siem Reap?

When did momondo last update prices for flights to Siem Reap?

Prices for flights to Siem Reap are updated daily.

How many operators does momondo search for flights to Siem Reap?

How old do you have to be to fly to Siem Reap?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Siem Reap.

What documentation or ID do you need to fly to Siem Reap?

The travel and health documents you'll need for your trip to Siem Reap may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Siem Reap. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal to Siem Reap?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Siem Reap.

Can I find flights to Siem Reap with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Siem Reap with this policy.

How can momondo help me find flights to Siem Reap?

Once you have performed a search for flights to Siem Reap, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight to Siem Reap right now. Can momondo alert me if prices change?

Price alerts on flights to Siem Reap are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Siem Reap trip

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1 adult
Fri 27/2
Fri 6/3

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Popular Flights to Siem Reap

Popular routes according to searches in the past day on momondo