Cheap flights from England to Siem Reap from £348

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from England to Siem Reap departing on 15/6. 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

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from England to Siem Reap

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:30 - 18:05
LHR
-
SAI
26h 35m
2 stops
Multiple Airlines Logo
19:05 - 18:45
SAI
-
LHR
29h 40m
2 stops
£595Multiple Airlines
Wed, 10 Jun - Wed, 17 Jun
Multiple Airlines Logo
10:25 - 14:50
LGW
-
SAI
22h 25m
2 stops
Multiple Airlines Logo
15:35 - 07:25
SAI
-
LGW
21h 50m
2 stops
£635Multiple Airlines
Thu, 2 Jul - Fri, 10 Jul
Multiple Airlines Logo
21:45 - 11:10
LHR
-
SAI
31h 25m
3 stops
Multiple Airlines Logo
19:05 - 18:45
SAI
-
LHR
29h 40m
2 stops
£645Multiple Airlines
Wed, 10 Jun - Wed, 17 Jun
Multiple Airlines Logo
11:35 - 21:55
LGW
-
SAI
52h 20m
2 stops
Multiple Airlines Logo
21:10 - 06:40
SAI
-
LGW
39h 30m
3 stops
£655Multiple Airlines
Fri, 4 Sep - Wed, 14 Oct
Multiple Airlines Logo
10:25 - 14:50
LGW
-
SAI
22h 25m
2 stops
Multiple Airlines Logo
15:35 - 07:20
SAI
-
LGW
21h 45m
2 stops
£676Multiple Airlines
Mon, 29 Jun - Mon, 20 Jul
SWISS Logo
20:05 - 09:40
LHR
-
SAI
55h 35m
2 stops
SWISS Logo
09:40 - 21:45
SAI
-
LHR
18h 05m
2 stops
£684SWISS
Fri, 4 Sep - Wed, 14 Oct
Emirates Logo
21:05 - 21:30
STN
-
SAI
42h 25m
2 stops
Emirates Logo
23:50 - 18:45
SAI
-
STN
24h 55m
2 stops
£718Emirates
Sun, 26 Apr - Tue, 12 May
Emirates Logo
14:55 - 21:30
STN
-
SAI
24h 35m
2 stops
Emirates Logo
23:50 - 18:45
SAI
-
STN
24h 55m
2 stops
£719Emirates
Mon, 11 May - Tue, 19 May
SWISS Logo
13:10 - 18:45
LCY
-
SAI
23h 35m
2 stops
SWISS Logo
09:45 - 08:40
SAI
-
LCY
28h 55m
2 stops
£969SWISS
Tue, 12 May - Tue, 26 May
Etihad Airways Logo
14:30 - 11:15
MAN
-
SAI
38h 45m
2 stops
Etihad Airways Logo
09:40 - 13:00
SAI
-
MAN
33h 20m
2 stops
£1,008Etihad Airways
Sat, 1 Aug - Wed, 2 Sep

Emirates flights from England to Region of Siem Reap

Our best Emirates deals on England to Region of Siem Reap flight tickets
Emirates
26 Apr
STN21:05London Stansted
42h 25m
2 stops
SAI21:30Siem Reap–Angkor Intl
12 May
SAI23:50Siem Reap–Angkor Intl
24h 55m
2 stops
STN18:45London Stansted
£718
Emirates
11 May
STN14:55London Stansted
24h 35m
2 stops
SAI21:30Siem Reap–Angkor Intl
19 May
SAI23:50Siem Reap–Angkor Intl
24h 55m
2 stops
STN18:45London Stansted
£719
Emirates
26 Apr
LGW21:45London Gatwick
41h 45m
2 stops
SAI21:30Siem Reap–Angkor Intl
12 May
SAI23:50Siem Reap–Angkor Intl
25h 55m
2 stops
LGW19:45London Gatwick
£725

SWISS flights from England to Region of Siem Reap

Our best SWISS deals on England to Region of Siem Reap flight tickets
SWISS
4 Sept
LHR20:05London Heathrow
55h 35m
2 stops
SAI09:40Siem Reap–Angkor Intl
14 Oct
SAI09:40Siem Reap–Angkor Intl
18h 05m
2 stops
LHR21:45London Heathrow
£684
SWISS
12 May
LCY13:10London City
23h 35m
2 stops
SAI18:45Siem Reap–Angkor Intl
26 May
SAI09:45Siem Reap–Angkor Intl
28h 55m
2 stops
LCY08:40London City
£969
SWISS
29 Apr
LCY18:00London City
42h 45m
2 stops
SAI18:45Siem Reap–Angkor Intl
20 May
SAI09:45Siem Reap–Angkor Intl
28h 55m
2 stops
LCY08:40London City
£1,011

momondo Fare Finder

 
Customise your flight search to find flights from England to Region of 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, momondo users made 279,928 searches. Data last updated 4 April 2026.
Use the filters below to find and compare flights from England to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 10/6

09:30-18:05

2 stops26h 35m

Siem Reap–Angkor Intl

Wed 17/6

19:05-18:45

2 stops29h 40m

£595

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Thu 2/7

10:25-14:50

2 stops22h 25m

Siem Reap–Angkor Intl

Fri 10/7

15:35-07:25

2 stops21h 50m

£635

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 10/6

21:45-11:10

3 stops31h 25m

Siem Reap–Angkor Intl

Wed 17/6

19:05-18:45

2 stops29h 40m

£645

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Fri 4/9

11:35-21:55

2 stops52h 20m

Siem Reap–Angkor Intl

Wed 14/10

21:10-06:40

3 stops39h 30m

£655
Fastest return journey

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Mon 29/6

10:25-14:50

2 stops22h 25m

Siem Reap–Angkor Intl

Mon 20/7

15:35-07:20

2 stops21h 45m

£676

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Fri 4/9

20:05-09:40

2 stops55h 35m

Siem Reap–Angkor Intl

Wed 14/10

09:40-21:45

2 stops18h 05m

£684

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Sun 26/4

21:05-21:30

2 stops42h 25m

Siem Reap–Angkor Intl

Tue 12/5

23:50-18:45

2 stops24h 55m

£718

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Mon 11/5

14:55-21:30

2 stops24h 35m

Siem Reap–Angkor Intl

Tue 19/5

23:50-18:45

2 stops24h 55m

£719

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Tue 12/5

13:10-18:45

2 stops23h 35m

Siem Reap–Angkor Intl

Tue 26/5

09:45-08:40

2 stops28h 55m

£969

ManchesterSiem Reap

MAN - SAI

MANSAI

Manchester

Sat 1/8

14:30-11:15

2 stops38h 45m

Siem Reap–Angkor Intl

Wed 2/9

09:40-13:00

2 stops33h 20m

£1,008

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

How to get the cheapest flight ticket from England to Region of Siem Reap

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Region of Siem Reap?

If you’re not able to fly to Region of Siem Reap in September, then January is your next best option. Flight prices from England to Region of Siem Reap during January average around £756.

How far in advance should I book a flight to Region of Siem Reap?

You are more likely to see cheaper flights to Region of Siem Reap from England when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Siem Reap for around £819 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Siem Reap from England for as low as £673 on momondo.

Can stopping save me money on England to Region of Siem Reap flights?

You could potentially save up to 4% on your flight if you consider stops on a England to Region of Siem Reap flight.

Cheap England to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from England to Region of Siem Reap

Fastest flight time

17h 35m

Direct flights

None
The fastest flight from England to Region of Siem Reap takes 17h 35m
There are no direct flights from England to Region of Siem Reap. There are no popular flight routes from England to Region of Siem Reap.

Frequently asked questions about flying from England to Siem Reap

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

    Prices for flights from England to Siem Reap were last updated today.

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

  • How old do you have to be to fly from England to Siem Reap?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from England to Siem Reap.

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

    The travel and health documents required for your trip to Siem Reap can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Siem Reap. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from England to Region of Siem Reap

Compare and see reviews for airlines that fly from England to Region of Siem Reap with momondo
Airline
Rating
Free Cancellation
Price
Austrian AirlinesPriceFrom £548Free CancellationRating
7.6
904 reviews
Search Austrian Airlines flights
LufthansaPriceFrom £608Free CancellationRating
6.8
7,892 reviews
Search Lufthansa flights
Vietnam AirlinesPriceFrom £627Free CancellationRating
7.7
253 reviews
Search Vietnam Airlines flights
Singapore AirlinesPriceFrom £675Free CancellationRating
8.2
1,488 reviews
Search Singapore Airlines flights
Thai AirwaysPriceFrom £873Free CancellationRating
7.8
395 reviews
Search Thai Airways flights
EmiratesPriceFrom £917Free CancellationRating
8.1
3,556 reviews
Search Emirates flights

Why use momondo?

Why should I use momondo to find a flight deal from England 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 from England.

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

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

How can momondo help me find flights from England to Siem Reap?

momondo helps you find the best flight between England and Siem Reap by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Siem Reap from England. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Region of Siem Reap trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 4/5
Mon 11/5

Find better results for your trip to Siem Reap

Popular Cities in Siem Reap

Popular flights according to clicks in the last 7 days on momondo