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Cheap flights from London City Airport to Siem Reap from £554

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London City Airport to Siem Reap departing on 20/5. 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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Find the cheapest flights from London City Airport to Siem Reap

Cheap return flights

Enter your travel dates to find the best prices.
SWISS Logo
09:00 - 18:55
LCY
-
SAI
27h 55m
2 stops
SWISS Logo
09:40 - 08:40
SAI
-
LCY
29h 00m
2 stops
£793SWISS
Sat, 12 Sep - Thu, 24 Sep
SWISS Logo
09:00 - 18:55
LCY
-
SAI
27h 55m
2 stops
SWISS Logo
09:40 - 08:40
SAI
-
LCY
29h 00m
2 stops
£794SWISS
Sat, 12 Sep - Wed, 23 Sep
SWISS Logo
09:15 - 18:55
LCY
-
SAI
27h 40m
2 stops
SWISS Logo
09:40 - 08:40
SAI
-
LCY
29h 00m
2 stops
£871SWISS
Tue, 8 Sep - Tue, 15 Sep
SWISS Logo
09:15 - 18:55
LCY
-
SAI
27h 40m
2 stops
SWISS Logo
16:00 - 12:35
SAI
-
LCY
26h 35m
2 stops
£900SWISS
Fri, 25 Sep - Sun, 4 Oct
SWISS Logo
09:15 - 18:55
LCY
-
SAI
27h 40m
2 stops
SWISS Logo
09:40 - 08:40
SAI
-
LCY
29h 00m
2 stops
£910SWISS
Wed, 10 Jun - Thu, 18 Jun
SWISS Logo
13:30 - 18:45
LCY
-
SAI
22h 15m
2 stops
SWISS Logo
09:55 - 07:55
SAI
-
LCY
29h 00m
2 stops
£1,144SWISS
Thu, 5 Nov - Fri, 27 Nov
SWISS Logo
13:30 - 18:45
LCY
-
SAI
22h 15m
2 stops
SWISS Logo
09:55 - 08:40
SAI
-
LCY
29h 45m
2 stops
£1,146SWISS
Thu, 5 Nov - Sun, 15 Nov
SWISS Logo
09:15 - 18:45
LCY
-
SAI
26h 30m
2 stops
SWISS Logo
16:45 - 08:40
SAI
-
LCY
22h 55m
2 stops
£1,161SWISS
Wed, 4 Nov - Thu, 19 Nov
SWISS Logo
13:10 - 18:55
LCY
-
SAI
23h 45m
2 stops
SWISS Logo
09:40 - 08:40
SAI
-
LCY
29h 00m
2 stops
£1,187SWISS
Fri, 12 Jun - Thu, 25 Jun
SWISS Logo
14:20 - 18:55
LCY
-
SAI
22h 35m
2 stops
SWISS Logo
09:40 - 08:40
SAI
-
LCY
29h 00m
2 stops
£1,189SWISS
Sun, 14 Jun - Tue, 30 Jun

SWISS flights from London City Airport to Siem Reap

Our best SWISS deals on London City Airport to Siem Reap flight tickets
SWISS
12 Sept
LCY09:00London City
27h 55m
2 stops
SAI18:55Siem Reap–Angkor Intl
24 Sept
SAI09:40Siem Reap–Angkor Intl
29h 00m
2 stops
LCY08:40London City
£793
SWISS
12 Sept
LCY09:00London City
27h 55m
2 stops
SAI18:55Siem Reap–Angkor Intl
23 Sept
SAI09:40Siem Reap–Angkor Intl
29h 00m
2 stops
LCY08:40London City
£794
SWISS
8 Sept
LCY09:15London City
27h 40m
2 stops
SAI18:55Siem Reap–Angkor Intl
15 Sept
SAI09:40Siem Reap–Angkor Intl
29h 00m
2 stops
LCY08:40London City
£871

KLM flights from London City Airport to Siem Reap

Our best KLM deals on London City Airport to Siem Reap flight tickets
KLM
14 May
LCY09:20London City
21h 00m
2 stops
SAI12:20Siem Reap–Angkor Intl
21 May
SAI19:45Siem Reap–Angkor Intl
28h 45m
2 stops
LCY18:30London City
£1,210
KLM
14 May
LCY10:00London City
20h 20m
2 stops
SAI12:20Siem Reap–Angkor Intl
4 Jun
SAI19:45Siem Reap–Angkor Intl
30h 00m
2 stops
LCY19:45London City
£1,248
KLM
14 May
LCY09:20London City
21h 00m
2 stops
SAI12:20Siem Reap–Angkor Intl
4 Jun
SAI19:45Siem Reap–Angkor Intl
28h 45m
2 stops
LCY18:30London City
£1,253

momondo Fare Finder

 
Customise your flight search to find flights from London City Airport 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, momondo users made 279,928 searches. Data last updated 13 May 2026.
Use the filters below to find and compare flights from London City Airport to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Sat 12/9

09:00-18:55

2 stops27h 55m

Siem Reap–Angkor Intl

Thu 24/9

09:40-08:40

2 stops29h 00m

£793

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Sat 12/9

09:00-18:55

2 stops27h 55m

Siem Reap–Angkor Intl

Wed 23/9

09:40-08:40

2 stops29h 00m

£794

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Tue 8/9

09:15-18:55

2 stops27h 40m

Siem Reap–Angkor Intl

Tue 15/9

09:40-08:40

2 stops29h 00m

£871

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Fri 25/9

09:15-18:55

2 stops27h 40m

Siem Reap–Angkor Intl

Sun 4/10

16:00-12:35

2 stops26h 35m

£900

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Wed 10/6

09:15-18:55

2 stops27h 40m

Siem Reap–Angkor Intl

Thu 18/6

09:40-08:40

2 stops29h 00m

£910

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Thu 5/11

13:30-18:45

2 stops22h 15m

Siem Reap–Angkor Intl

Fri 27/11

09:55-07:55

2 stops29h 00m

£1,144

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Thu 5/11

13:30-18:45

2 stops22h 15m

Siem Reap–Angkor Intl

Sun 15/11

09:55-08:40

2 stops29h 45m

£1,146
Fastest return journey

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Wed 4/11

09:15-18:45

2 stops26h 30m

Siem Reap–Angkor Intl

Thu 19/11

16:45-08:40

2 stops22h 55m

£1,161

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Fri 12/6

13:10-18:55

2 stops23h 45m

Siem Reap–Angkor Intl

Thu 25/6

09:40-08:40

2 stops29h 00m

£1,187

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Sun 14/6

14:20-18:55

2 stops22h 35m

Siem Reap–Angkor Intl

Tue 30/6

09:40-08:40

2 stops29h 00m

£1,189

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to Siem Reap from

How to get the cheapest flight ticket from London City Airport to 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 airline that flies from London City to Siem Reap–Angkor Intl?

KLM is the most popular carrier operating from London City to Siem Reap–Angkor Intl

When to book flights from London City Airport to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from London City Airport to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London City Airport to Siem Reap (LCY to SAI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London City Airport to Siem Reap

Fastest flight time

20h 15m

Direct flights

None
The fastest flight from London City Airport to Siem Reap takes 20h 15m
There are no direct flights from London City Airport to Siem Reap. There are no popular flight routes from London City Airport to Siem Reap.
Search flight deals

Frequently asked questions about flying from London City Airport to Siem Reap

  • How far is London City to Siem Reap–Angkor Intl by plane?

    Siem Reap–Angkor Intl is 6070.4 mi away from London City. By plane, this route typically takes 20h 15m.

  • When did momondo last update prices for flights from London City Airport to Siem Reap–Angkor Intl Airport?

    Prices for flights from London City Airport to Siem Reap–Angkor Intl Airport were last updated today.

  • How old do you have to be to fly from London City Airport to Siem Reap–Angkor Intl Airport?

    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 London City Airport to Siem Reap–Angkor Intl Airport.

  • What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

    The travel and health documents you'll need for your trip to Siem Reap–Angkor Intl Airport 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–Angkor Intl Airport. 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 from London to Siem Reap?

It is quick and easy to find London to Siem Reap flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Siem Reap that suits you.

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

Flights from London to Siem Reap with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Siem Reap from London.

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

Yes. momondo can track prices for London to Siem Reap flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cabin classes currently available on flights to Siem Reap

List of cabin classes available on flights landing in Siem Reap. Availability may vary depending on flight origin and airline.
First Class to Siem Reap
Business Class to Siem Reap