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Cheap flights from London City Airport to Siem Reap from £376

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 15/5. 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
08:00 - 18:45
LCY
-
SAI
28h 45m
2 stops
SWISS Logo
10:30 - 18:40
SAI
-
LCY
38h 10m
2 stops
£628SWISS
Mon, 1 Jun - Mon, 15 Jun
SWISS Logo
09:45 - 18:45
LCY
-
SAI
27h 00m
2 stops
SWISS Logo
16:00 - 18:40
SAI
-
LCY
32h 40m
2 stops
£959SWISS
Mon, 6 Apr - Wed, 29 Apr
SWISS Logo
08:10 - 09:40
LCY
-
SAI
19h 30m
2 stops
SWISS Logo
09:40 - 08:40
SAI
-
LCY
29h 00m
2 stops
£1,429SWISS
Mon, 27 Jul - Tue, 18 Aug
SWISS Logo
09:15 - 18:45
LCY
-
SAI
27h 30m
2 stops
SWISS Logo
09:40 - 08:40
SAI
-
LCY
29h 00m
2 stops
£1,430SWISS
Tue, 28 Jul - Tue, 18 Aug
SWISS Logo
09:15 - 18:45
LCY
-
SAI
27h 30m
2 stops
SWISS Logo
10:30 - 08:40
SAI
-
LCY
28h 10m
2 stops
£1,457SWISS
Tue, 28 Jul - Tue, 11 Aug
SWISS Logo
09:15 - 18:45
LCY
-
SAI
27h 30m
2 stops
SWISS Logo
16:00 - 08:25
SAI
-
LCY
22h 25m
2 stops
£1,531SWISS
Fri, 10 Apr - Fri, 17 Apr
SWISS Logo
13:10 - 18:45
LCY
-
SAI
23h 35m
2 stops
SWISS Logo
09:40 - 08:40
SAI
-
LCY
29h 00m
2 stops
£1,552SWISS
Tue, 28 Jul - Mon, 10 Aug
SWISS Logo
09:15 - 18:45
LCY
-
SAI
27h 30m
2 stops
SWISS Logo
09:40 - 07:35
SAI
-
LCY
27h 55m
2 stops
£1,555SWISS
Tue, 28 Jul - Sun, 16 Aug
SWISS Logo
13:30 - 18:45
LCY
-
SAI
22h 15m
2 stops
SWISS Logo
09:55 - 08:40
SAI
-
LCY
29h 45m
2 stops
£1,572SWISS
Thu, 12 Mar - Sun, 15 Mar
SWISS Logo
14:20 - 18:45
LCY
-
SAI
22h 25m
2 stops
SWISS Logo
09:40 - 08:40
SAI
-
LCY
29h 00m
2 stops
£1,572SWISS
Sun, 26 Jul - Tue, 18 Aug

KLM flights from London City Airport to Siem Reap

Our best KLM deals on London City Airport to Siem Reap flight tickets
KLM
14 Apr
LCY09:20London City
20h 55m
2 stops
SAI12:15Siem Reap–Angkor Intl
25 Apr
SAI19:30Siem Reap–Angkor Intl
30h 45m
2 stops
LCY20:15London City
£1,576
KLM
1 Apr
LCY09:20London City
20h 55m
2 stops
SAI12:15Siem Reap–Angkor Intl
18 Apr
SAI19:30Siem Reap–Angkor Intl
42h 25m
2 stops
LCY07:55London City
£1,680
KLM
1 Apr
LCY09:20London City
20h 55m
2 stops
SAI12:15Siem Reap–Angkor Intl
18 Apr
SAI19:30Siem Reap–Angkor Intl
42h 25m
2 stops
LCY07:55London City
£1,681

SWISS flights from London City Airport to Siem Reap

Our best SWISS deals on London City Airport to Siem Reap flight tickets
SWISS
6 Apr
LCY09:45London City
27h 00m
2 stops
SAI18:45Siem Reap–Angkor Intl
29 Apr
SAI16:00Siem Reap–Angkor Intl
32h 40m
2 stops
LCY18:40London City
£959
SWISS
27 Jul
LCY08:10London City
19h 30m
2 stops
SAI09:40Siem Reap–Angkor Intl
18 Aug
SAI09:40Siem Reap–Angkor Intl
29h 00m
2 stops
LCY08:40London City
£1,429
SWISS
28 Jul
LCY09:15London City
27h 30m
2 stops
SAI18:45Siem Reap–Angkor Intl
17 Aug
SAI09:40Siem Reap–Angkor Intl
29h 00m
2 stops
LCY08:40London City
£1,430

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 27 February 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

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Mon 1/6

08:00-18:45

2 stops28h 45m

Siem Reap–Angkor Intl

Mon 15/6

10:30-18:40

2 stops38h 10m

£628

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Mon 6/4

09:45-18:45

2 stops27h 00m

Siem Reap–Angkor Intl

Wed 29/4

16:00-18:40

2 stops32h 40m

£959

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Mon 27/7

08:10-09:40

2 stops19h 30m

Siem Reap–Angkor Intl

Tue 18/8

09:40-08:40

2 stops29h 00m

£1,429

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Tue 28/7

09:15-18:45

2 stops27h 30m

Siem Reap–Angkor Intl

Tue 18/8

09:40-08:40

2 stops29h 00m

£1,430

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Tue 28/7

09:15-18:45

2 stops27h 30m

Siem Reap–Angkor Intl

Tue 11/8

10:30-08:40

2 stops28h 10m

£1,457

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Fri 10/4

09:15-18:45

2 stops27h 30m

Siem Reap–Angkor Intl

Fri 17/4

16:00-08:25

2 stops22h 25m

£1,531

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Tue 28/7

13:10-18:45

2 stops23h 35m

Siem Reap–Angkor Intl

Mon 10/8

09:40-08:40

2 stops29h 00m

£1,552

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Tue 28/7

09:15-18:45

2 stops27h 30m

Siem Reap–Angkor Intl

Sun 16/8

09:40-07:35

2 stops27h 55m

£1,555

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Thu 12/3

13:30-18:45

2 stops22h 15m

Siem Reap–Angkor Intl

Sun 15/3

09:55-08:40

2 stops29h 45m

£1,572

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Sun 26/7

14:20-18:45

2 stops22h 25m

Siem Reap–Angkor Intl

Tue 18/8

09:40-08:40

2 stops29h 00m

£1,572

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?

SWISS and Lufthansa are the most popular carriers 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

15h 55m

Direct flights

None
The fastest flight from London City Airport to Siem Reap takes 15h 55m
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

  • 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 15h 55m.

  • 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