Flights to Siem Reap

£532 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 12/3. 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.
Multiple Airlines
12 Mar
LGW
24h 00m
2 stops
SAI
2 Apr
SAI
41h 55m
2 stops
LGW
£532
SWISS
8 Jun
LGW
27h 30m
2 stops
SAI
14 Jun
SAI
22h 25m
2 stops
LGW
£552
Lufthansa
29 Apr
LHR
18h 55m
2 stops
SAI
26 May
SAI
28h 10m
2 stops
LHR
£561
SWISS
1 Jun
BHX
41h 55m
2 stops
SAI
30 Sept
SAI
38h 20m
2 stops
BHX
£567
SWISS
8 Jun
LHR
28h 05m
2 stops
SAI
14 Jun
SAI
21h 55m
2 stops
LHR
£568
Multiple Airlines
18 Jun
LHR
30h 45m
2 stops
SAI
15 Jul
SAI
21h 55m
2 stops
LHR
£574
China Eastern
12 Mar
LHR
41h 00m
3 stops
SAI
30 Mar
SAI
51h 30m
2 stops
LHR
£577
SWISS
29 Apr
LGW
27h 30m
2 stops
SAI
26 May
SAI
27h 50m
2 stops
LGW
£593
China Eastern
15 Mar
LGW
51h 30m
2 stops
SAI
30 Mar
SAI
47h 50m
3 stops
LGW
£598
China Eastern
10 Mar
LHR
41h 00m
2 stops
SAI
30 Mar
SAI
27h 30m
2 stops
LHR
£627
Multiple Airlines
28 Apr
BHX
18h 50m
2 stops
SAI
23 Jun
SAI
28h 25m
2 stops
BHX
£628
SWISS
18 Jun
LGW
27h 20m
2 stops
SAI
15 Jul
SAI
22h 20m
2 stops
LGW
£632

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.
Multiple Airlines Logo
11:05 - 18:05
LGW
-
SAI
24h 00m
2 stops
Multiple Airlines Logo
19:05 - 07:00
SAI
-
LGW
41h 55m
2 stops
£532Multiple Airlines
Thu, 12 Mar - Thu, 2 Apr
SWISS Logo
09:15 - 18:45
LGW
-
SAI
27h 30m
2 stops
SWISS Logo
16:00 - 08:25
SAI
-
LGW
22h 25m
2 stops
£552SWISS
Mon, 8 Jun - Sun, 14 Jun
Lufthansa Logo
17:50 - 18:45
LHR
-
SAI
18h 55m
2 stops
Lufthansa Logo
10:30 - 08:40
SAI
-
LHR
28h 10m
2 stops
£561Lufthansa
Wed, 29 Apr - Tue, 26 May
SWISS Logo
18:50 - 18:45
BHX
-
SAI
41h 55m
2 stops
SWISS Logo
09:40 - 18:00
SAI
-
BHX
38h 20m
2 stops
£567SWISS
Mon, 1 Jun - Wed, 30 Sep
SWISS Logo
08:40 - 18:45
LHR
-
SAI
28h 05m
2 stops
SWISS Logo
16:00 - 07:55
SAI
-
LHR
21h 55m
2 stops
£568SWISS
Mon, 8 Jun - Sun, 14 Jun
Vietnam Airlines Logo
18:55 - 17:10
LHR
-
SAI
16h 15m
1 stop
Vietnam Airlines Logo
18:05 - 17:05
SAI
-
LHR
29h 00m
1 stop
£662Vietnam Airlines
Mon, 8 Jun - Sun, 14 Jun
Singapore Airlines Logo
10:15 - 09:40
LGW
-
SAI
17h 25m
1 stop
Singapore Airlines Logo
10:30 - 06:55
SAI
-
LGW
26h 25m
1 stop
£672Singapore Airlines
Mon, 8 Jun - Sun, 14 Jun
Singapore Airlines Logo
10:35 - 15:10
MAN
-
SAI
22h 35m
1 stop
Singapore Airlines Logo
10:30 - 09:15
SAI
-
MAN
28h 45m
1 stop
£724Singapore Airlines
Tue, 14 Apr - Tue, 12 May
Emirates Logo
14:05 - 21:10
STN
-
SAI
24h 05m
2 stops
Emirates Logo
23:50 - 18:45
SAI
-
STN
24h 55m
2 stops
£768Emirates
Mon, 9 Mar - Tue, 31 Mar
Emirates Logo
14:55 - 21:30
STN
-
SAI
24h 35m
2 stops
Emirates Logo
12:55 - 12:55
SAI
-
STN
30h 00m
2 stops
£779Emirates
Mon, 8 Jun - Sun, 14 Jun

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 13 February 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

Thu 12/3

11:05-18:05

2 stops24h 00m

Siem Reap–Angkor Intl

Thu 2/4

19:05-07:00

2 stops41h 55m

£532

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Mon 8/6

09:15-18:45

2 stops27h 30m

Siem Reap–Angkor Intl

Sun 14/6

16:00-08:25

2 stops22h 25m

£552

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 29/4

17:50-18:45

2 stops18h 55m

Siem Reap–Angkor Intl

Tue 26/5

10:30-08:40

2 stops28h 10m

£561

BirminghamSiem Reap

BHX - SAI

BHXSAI

Birmingham

Mon 1/6

18:50-18:45

2 stops41h 55m

Siem Reap–Angkor Intl

Wed 30/9

09:40-18:00

2 stops38h 20m

£567

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Mon 8/6

08:40-18:45

2 stops28h 05m

Siem Reap–Angkor Intl

Sun 14/6

16:00-07:55

2 stops21h 55m

£568

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Mon 8/6

18:55-17:10

1 stop16h 15m

Siem Reap–Angkor Intl

Sun 14/6

18:05-17:05

1 stop29h 00m

£662

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Mon 8/6

10:15-09:40

1 stop17h 25m

Siem Reap–Angkor Intl

Sun 14/6

10:30-06:55

1 stop26h 25m

£672

ManchesterSiem Reap

MAN - SAI

MANSAI

Manchester

Tue 14/4

10:35-15:10

1 stop22h 35m

Siem Reap–Angkor Intl

Tue 12/5

10:30-09:15

1 stop28h 45m

£724

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Mon 9/3

14:05-21:10

2 stops24h 05m

Siem Reap–Angkor Intl

Tue 31/3

23:50-18:45

2 stops24h 55m

£768

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Mon 8/6

14:55-21:30

2 stops24h 35m

Siem Reap–Angkor Intl

Sun 14/6

12:55-12:55

2 stops30h 00m

£779

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

£273

Best Round-Trip Price

£532

Fastest flight time

26h 25m

Popular in

November
The best one-way flight price to Siem Reap from United Kingdom in the last 72 hours is £273 (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 £532 (London Gatwick to Siem Reap–Angkor Intl).
The fastest flight to Siem Reap from United Kingdom takes 26h 25m (London City to Siem Reap–Angkor Intl).
November has the highest demand for flights to Siem Reap, with a 4% 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 £99/pp. The absolute cheapest flight to Region of Siem Reap is £31/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
Sun 15/3
Sun 22/3

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Popular Flights to Siem Reap

Popular routes according to searches in the past day on momondo