Find flights
Airlines
Travel Guide

£153+ Cheap flights to Siem Reap, Cambodia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
— SAI
6 Jul — 13 Jul1
1 adult
1 adult, Economy, 0 bags

Flights to Siem Reap, Cambodia in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Siem Reap
Explore the most affordable flight options available to Siem Reap. Find the lowest fares based on data from user searches, with prices last updated on 6 June 2026.

Mon 16/1109:20
LGW
-
SAI
1 stop17h 30m
Singapore Airlines
Fri 4/1210:45
SAI
-
LGW
1 stop26h 40m
Singapore Airlines
Deal found 3/6£188
Tue 10/1121:45
LHR
-
SAI
1 stop35h 10m
Singapore Airlines
Thu 3/1210:45
SAI
-
LHR
1 stop26h 10m
Singapore Airlines
Deal found 3/6£216
Mon 22/614:55
STN
-
SAI
1 stop24h 35m
Emirates
Tue 7/723:50
SAI
-
STN
1 stop19h 05m
Emirates
Deal found 3/6£524
Mon 22/614:35
LGW
-
SAI
1 stop24h 55m
Emirates
Tue 7/723:50
SAI
-
LGW
1 stop25h 55m
Emirates
Deal found 3/6£530
Mon 22/621:45
LHR
-
SAI
2 stops38h 05m
Etihad Airways
Tue 7/719:20
SAI
-
LHR
2 stops41h 40m
Etihad Airways
Deal found 3/6£575
Wed 10/621:45
LHR
-
SAI
2 stops31h 30m
Etihad Airways
Tue 16/619:20
SAI
-
LHR
2 stops29h 25m
Etihad Airways
Deal found 5/6£588
Fri 26/621:45
LHR
-
SAI
2 stops38h 05m
Etihad Airways
Fri 3/715:10
SAI
-
LHR
2 stops45h 50m
Etihad Airways
Deal found 4/6£589
Tue 15/912:20
LHR
-
SAI
2 stops24h 35m
Multiple Airlines
Wed 23/909:40
SAI
-
LHR
2 stops18h 05m
Multiple Airlines
Deal found 2/6£595
Tue 15/909:25
LGW
-
SAI
2 stops27h 30m
SWISS
Wed 23/909:40
SAI
-
LGW
2 stops28h 45m
SWISS
Deal found 2/6£598
Mon 14/918:40
LHR
-
SAI
2 stops33h 00m
SWISS
Tue 22/909:40
SAI
-
LHR
2 stops18h 05m
SWISS
Deal found 2/6£605
Wed 15/714:45
LHR
-
SAI
2 stops38h 30m
Etihad Airways
Sat 25/715:10
SAI
-
LHR
2 stops21h 50m
Etihad Airways
Deal found 2/6£607
Fri 25/906:00
LHR
-
SAI
2 stops30h 55m
Austrian Airlines
Tue 29/912:55
SAI
-
LHR
2 stops25h 25m
Austrian Airlines
Deal found 2/6£614

Find flight deals to Siem Reap

Find the latest flights to Siem Reap in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 6 June 2026.

Return from

£188

One-way from

£153

Popular in

December

Cheapest in

September

Average price

£849
Singapore Airlines
  • Singapore Airlines
  • 16/11-4/12
  • 2 total stops
  • 44h 10m total
  • London to Siem Reap
Search Deals
Singapore Airlines
  • Singapore Airlines
  • 16/11
  • 1 total stop
  • 23h 35m total
  • London to Siem Reap
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£32 potential savings vs. average return price).
Search Deals
Average for return flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Siem Reap that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 6 June 2026.
Use the filters below to find and compare flights to Siem Reap that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Tue 15/9

13:10-18:55

2 stops23h 45m

Siem Reap–Angkor Intl

Wed 23/9

09:40-08:40

2 stops29h 00m

£628

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Thu 19/11

10:30-21:00

2 stops51h 30m

Siem Reap–Angkor Intl

Sat 5/12

22:00-14:00

2 stops47h 00m

£672

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Tue 10/11

21:00-21:00

2 stops41h 00m

Siem Reap–Angkor Intl

Sat 5/12

22:00-17:30

2 stops50h 30m

£699

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Tue 8/9

11:35-20:10

3 stops26h 35m

Siem Reap–Angkor Intl

Sat 26/9

12:55-06:55

2 stops24h 00m

£737

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Mon 2/11

14:05-21:10

2 stops24h 05m

Siem Reap–Angkor Intl

Tue 10/11

23:50-12:05

2 stops19h 15m

£755

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Mon 14/9

14:55-21:30

2 stops24h 35m

Siem Reap–Angkor Intl

Tue 22/9

23:50-12:55

2 stops19h 05m

£755

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Thu 2/7

21:05-21:30

2 stops42h 25m

Siem Reap–Angkor Intl

Thu 9/7

23:50-18:45

2 stops24h 55m

£764

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Fri 21/8

13:10-18:55

2 stops23h 45m

Siem Reap–Angkor Intl

Thu 3/9

10:30-08:40

2 stops28h 10m

£769

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Sun 5/7

23:55-21:30

2 stops39h 35m

Siem Reap–Angkor Intl

Tue 14/7

23:50-19:45

2 stops25h 55m

£771

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Tue 1/12

23:55-21:10

2 stops38h 15m

Siem Reap–Angkor Intl

Mon 14/12

13:20-11:40

2 stops29h 20m

£777

Flights are sorted by cheapest return flights first.

Deals found on 3/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Siem Reap

How long is the flight to Siem Reap?

On average, a flight from London to Siem Reap takes 21 hours 33 minutes. Flights to Siem Reap from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Siem Reap?

The most popular airlines flying from London to Siem Reap are Singapore Airlines, Vietnam Airlines and Thai Airways.

Singapore Airlines
Singapore Airlines
From £665
Vietnam Airlines
Vietnam Airlines
From £621
Emirates
Emirates
From £751
Thai Airways
Thai Airways
From £862

What are the cheapest airlines that fly to Siem Reap?

The cheapest airlines flying from London to Siem Reap are Austrian Airlines, Lufthansa and Vietnam Airlines.

Rainfall in Siem Reap by month

Plan your trip to Siem Reap by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Siem Reap ranges from 0.0 - 260.0 inches per month. September is typically the wettest month, when rainfall can reach 260.0 mm. January is typically the driest time to visit Siem Reap when rainfall is around 0.0 mm.

Temperature in Siem Reap by month

Plan your trip to Siem Reap by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Siem Reap, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 24.0 C).

Reviews of airlines servicing Siem Reap

Get insights into the airlines that provide service to Siem Reap. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Siem Reap. Reviews last updated 6 June 2026.
Get a feel of what it's like to fly with Singapore Airlines,Emirates, andThai Airways to Cambodia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,532 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.1

Overall

8.2

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.
Singapore Airlines
8.2
Very Good
1,532 reviews
Singapore Airlines
8.2
Very Good
1,532 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.1

Overall

8.2

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.
Emirates
8.1
Very Good
3,577 reviews
Singapore Airlines
8.2
Very Good
1,532 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.1

Overall

8.2

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.
Thai Airways
7.9
Good
404 reviews
Singapore Airlines
8.2
Very Good
1,532 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.1

Overall

8.2

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.
Vietnam Airlines
7.7
Good
271 reviews
Singapore Airlines
8.2
Very Good
1,532 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.1

Overall

8.2

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.
British Airways
6.7
Okay
8,028 reviews
Singapore Airlines
8.2
Very Good
1,532 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.1

Overall

8.2

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.

FAQs about flying to Siem Reap

  • What airport do you fly into for flights to Siem Reap?

    Travelers will need to book flights to Siem Reap–Angkor Intl (SAI) if they wish to fly to Siem Reap. The Siem Reap airport is 24.7 mi from the city center.

  • Can I find cheaper flights to Siem Reap if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Siem Reap on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Siem Reap?

    Based on reviews from Cheapflights users, Austrian Airlines is rated the highest out of the airlines that fly to Siem Reap.

  • What is the cheapest airport to fly to in Siem Reap?

    Siem Reap–Angkor Intl is currently the cheapest airport to fly to in Siem Reap. One-way flights to Siem Reap–Angkor Intl typically cost £50, while return flights cost around £123.

  • How much is a return flight to Siem Reap?

    A return flight to Siem Reap will typically cost around £176, however they can be found for as little as £123.

  • Where does the fastest flight to Siem Reap depart from?

    For those looking to save time traveling to Siem Reap, Manchester offers the quickest one-way flight (16 hours 45 minutes).

  • Does Siem Reap–Angkor Intl have car hire?

    Yes. Those touching down at Siem Reap–Angkor Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Siem Reap–Angkor Intl?

    Yes. Siem Reap–Angkor Intl has hotels nearby for those requiring accommodations. Beng Mealea Lodge is the closest property to Siem Reap–Angkor Intl (6.0 mi away from Siem Reap–Angkor Intl).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Siem Reap by cabin class

Find flights to Siem Reap, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class flights to Siem Reap
Business Class flights to Siem Reap
Prem Economy Class flights to Siem Reap
Economy Class flights to Siem Reap

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Siem Reap?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Siem Reap today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets to Siem Reap?

Millions of users choose and trust Cheapflights to book the best flight deals to Siem Reap for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights to Siem Reap with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights to Siem Reap, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights to Siem Reap become cheaper?

Yes! Start tracking prices for Siem Reap flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.