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Cheap flights from London City Airport to Siem Reap from £431

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 22/9. 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
1 adult, Economy, 0 bags

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
13:10 - 18:55LCY  London City-SAI Siem Reap–Angkor Intl
23h 45m2 stops Zurich Bangkok Suvarnabhumi
SWISS Logo
09:40 - 08:40SAI  Siem Reap–Angkor Intl-LCY London City
29h 00m2 stops Bangkok Suvarnabhumi Zurich
£668SWISS
Wed, 2 Sep - Thu, 1 Oct
Multiple Airlines Logo
13:10 - 18:55LCY  London City-SAI Siem Reap–Angkor Intl
23h 45m2 stops Zurich Bangkok Suvarnabhumi
Multiple Airlines Logo
16:00 - 08:40SAI  Siem Reap–Angkor Intl-LCY London City
22h 40m2 stops Singapore Changi Frankfurt am Main
£690Multiple Airlines
Wed, 2 Sep - Wed, 30 Sep
SWISS Logo
09:15 - 18:55LCY  London City-SAI Siem Reap–Angkor Intl
27h 40m2 stops Zurich Bangkok Suvarnabhumi
SWISS Logo
09:55 - 08:40SAI  Siem Reap–Angkor Intl-LCY London City
29h 45m2 stops Bangkok Suvarnabhumi Zurich
£692SWISS
Thu, 3 Sep - Thu, 29 Oct
SWISS Logo
09:15 - 18:55LCY  London City-SAI Siem Reap–Angkor Intl
27h 40m2 stops Zurich Bangkok Suvarnabhumi
SWISS Logo
09:40 - 08:40SAI  Siem Reap–Angkor Intl-LCY London City
29h 00m2 stops Bangkok Suvarnabhumi Zurich
£693SWISS
Wed, 2 Sep - Tue, 29 Sep
SWISS Logo
09:15 - 18:55LCY  London City-SAI Siem Reap–Angkor Intl
27h 40m2 stops Zurich Bangkok Suvarnabhumi
SWISS Logo
09:40 - 08:40SAI  Siem Reap–Angkor Intl-LCY London City
29h 00m2 stops Bangkok Suvarnabhumi Zurich
£708SWISS
Thu, 3 Sep - Thu, 1 Oct
SWISS Logo
09:15 - 18:55LCY  London City-SAI Siem Reap–Angkor Intl
27h 40m2 stops Zurich Bangkok Suvarnabhumi
SWISS Logo
09:40 - 08:40SAI  Siem Reap–Angkor Intl-LCY London City
29h 00m2 stops Bangkok Suvarnabhumi Zurich
£733SWISS
Thu, 3 Sep - Tue, 29 Sep
SWISS Logo
09:15 - 18:45LCY  London City-SAI Siem Reap–Angkor Intl
26h 30m2 stops Zurich Bangkok Suvarnabhumi
SWISS Logo
09:55 - 12:40SAI  Siem Reap–Angkor Intl-LCY London City
33h 45m2 stops Bangkok Suvarnabhumi Zurich
£750SWISS
Mon, 2 Nov - Sat, 14 Nov
SWISS Logo
09:15 - 18:55LCY  London City-SAI Siem Reap–Angkor Intl
27h 40m2 stops Zurich Bangkok Suvarnabhumi
SWISS Logo
09:40 - 08:40SAI  Siem Reap–Angkor Intl-LCY London City
29h 00m2 stops Bangkok Suvarnabhumi Zurich
£767SWISS
Tue, 1 Sep - Thu, 1 Oct
SWISS Logo
13:30 - 18:45LCY  London City-SAI Siem Reap–Angkor Intl
22h 15m2 stops Zurich Bangkok Suvarnabhumi
SWISS Logo
16:45 - 08:40SAI  Siem Reap–Angkor Intl-LCY London City
22h 55m2 stops Singapore Changi Zurich
£772SWISS
Wed, 4 Nov - Thu, 19 Nov
SWISS Logo
13:30 - 18:45LCY  London City-SAI Siem Reap–Angkor Intl
22h 15m2 stops Zurich Bangkok Suvarnabhumi
SWISS Logo
16:45 - 08:40SAI  Siem Reap–Angkor Intl-LCY London City
22h 55m2 stops Singapore Changi Zurich
£772SWISS
Thu, 5 Nov - Thu, 19 Nov

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SWISS flights from London City Airport to Siem Reap

Our best SWISS deals on London City Airport to Siem Reap flight tickets
SWISS
2 Sept
LCY13:10London City
23h 45m
2 stops
SAI18:55Siem Reap–Angkor Intl
1 Oct
SAI09:40Siem Reap–Angkor Intl
29h 00m
2 stops
LCY08:40London City
£668
SWISS
3 Sept
LCY09:15London City
27h 40m
2 stops
SAI18:55Siem Reap–Angkor Intl
29 Oct
SAI09:55Siem Reap–Angkor Intl
29h 45m
2 stops
LCY08:40London City
£692
SWISS
2 Sept
LCY09:15London City
27h 40m
2 stops
SAI18:55Siem Reap–Angkor Intl
29 Sept
SAI09:40Siem Reap–Angkor Intl
29h 00m
2 stops
LCY08:40London City
£693

KLM flights from London City Airport to Siem Reap

Our best KLM deals on London City Airport to Siem Reap flight tickets
KLM
3 Dec
LCY09:20London City
20h 20m
2 stops
SAI12:40Siem Reap–Angkor Intl
14 Dec
SAI19:25Siem Reap–Angkor Intl
42h 50m
2 stops
LCY07:15London City
£1,285
KLM
30 Sept
LCY08:25London City
21h 50m
2 stops
SAI12:15Siem Reap–Angkor Intl
28 Oct
SAI19:25Siem Reap–Angkor Intl
42h 50m
2 stops
LCY07:15London City
£1,286
KLM
2 Sept
LCY08:25London City
21h 50m
2 stops
SAI12:15Siem Reap–Angkor Intl
23 Sept
SAI19:35Siem Reap–Angkor Intl
42h 20m
2 stops
LCY07:55London City
£1,295

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 11 August 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 London City - SAI Siem Reap–Angkor Intl

LCYSAI

London City

Wed 2/9

13:10-18:55

2 stops23h 45m

Siem Reap–Angkor Intl

Thu 1/10

09:40-08:40

2 stops29h 00m

£668

LondonSiem Reap

LCY London City - SAI Siem Reap–Angkor Intl

LCYSAI

London City

Wed 2/9

13:10-18:55

2 stops23h 45m

Siem Reap–Angkor Intl

Wed 30/9

16:00-08:40

2 stops22h 40m

£690

LondonSiem Reap

LCY London City - SAI Siem Reap–Angkor Intl

LCYSAI

London City

Thu 3/9

09:15-18:55

2 stops27h 40m

Siem Reap–Angkor Intl

Thu 29/10

09:55-08:40

2 stops29h 45m

£692

LondonSiem Reap

LCY London City - SAI Siem Reap–Angkor Intl

LCYSAI

London City

Wed 2/9

09:15-18:55

2 stops27h 40m

Siem Reap–Angkor Intl

Tue 29/9

09:40-08:40

2 stops29h 00m

£693

LondonSiem Reap

LCY London City - SAI Siem Reap–Angkor Intl

LCYSAI

London City

Thu 3/9

09:15-18:55

2 stops27h 40m

Siem Reap–Angkor Intl

Thu 1/10

09:40-08:40

2 stops29h 00m

£708

LondonSiem Reap

LCY London City - SAI Siem Reap–Angkor Intl

LCYSAI

London City

Thu 3/9

09:15-18:55

2 stops27h 40m

Siem Reap–Angkor Intl

Tue 29/9

09:40-08:40

2 stops29h 00m

£733

LondonSiem Reap

LCY London City - SAI Siem Reap–Angkor Intl

LCYSAI

London City

Mon 2/11

09:15-18:45

2 stops26h 30m

Siem Reap–Angkor Intl

Sat 14/11

09:55-12:40

2 stops33h 45m

£750

LondonSiem Reap

LCY London City - SAI Siem Reap–Angkor Intl

LCYSAI

London City

Tue 1/9

09:15-18:55

2 stops27h 40m

Siem Reap–Angkor Intl

Thu 1/10

09:40-08:40

2 stops29h 00m

£767
Fastest return journey

LondonSiem Reap

LCY London City - SAI Siem Reap–Angkor Intl

LCYSAI

London City

Wed 4/11

13:30-18:45

2 stops22h 15m

Siem Reap–Angkor Intl

Thu 19/11

16:45-08:40

2 stops22h 55m

£772

LondonSiem Reap

LCY London City - SAI Siem Reap–Angkor Intl

LCYSAI

London City

Thu 5/11

13:30-18:45

2 stops22h 15m

Siem Reap–Angkor Intl

Thu 19/11

16:45-08:40

2 stops22h 55m

£772

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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

22h 25m

Direct flights

None
The fastest flight from London City Airport to Siem Reap takes 22h 25m
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 22h 25m.

  • 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