App
Customer Support
PHP
Find Bookings
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Cheap flight deals from London to Siem Reap Starting at PHP 28,845

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip
      • LGW09:25 am
        21h 25m
        1 stop
        SAI01:50 pm
        Mon, Mar 3|London - Siem Reap|Singapore Airlines
        PHP 28,845PHP 41,062
        30% OFF
        30% OFF
        PHP 41,062PHP 28,845

        Choose Singapore Airlines flights from London to Siem Reap. The one-way connecting flight with Singapore Airlines departs from London Gatwick Airport on Mon, Mar 3, arriving at Siem Reap Angkor International Airport. One-way Prices start from PHP 28,845 including taxes and charges.

      • LHR09:10 am
        21h 50m
        1 stop
        SAI02:00 pm
        Fri, Mar 21|London - Siem Reap|Singapore Airlines
        PHP 28,988PHP 41,062
        28% OFF
        28% OFF
        PHP 41,062PHP 28,988

        Choose Singapore Airlines flights from London to Siem Reap. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Fri, Mar 21, arriving at Siem Reap Angkor International Airport. One-way Prices start from PHP 28,988 including taxes and charges.

      • LHR09:10 am
        21h 50m
        1 stop
        SAI02:00 pm
        Mon, Mar 24|London - Siem Reap|Singapore Airlines
        PHP 29,235PHP 41,062
        28% OFF
        28% OFF
        PHP 41,062PHP 29,235

        Choose Singapore Airlines flights from London to Siem Reap. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Mon, Mar 24, arriving at Siem Reap Angkor International Airport. One-way Prices start from PHP 29,235 including taxes and charges.

      • LGW09:20 am
        21h 40m
        1 stop
        SAI02:00 pm
        Sat, Mar 15|London - Siem Reap|Singapore Airlines
        PHP 29,267
        PHP 29,267

        Choose Singapore Airlines flights from London to Siem Reap. The one-way connecting flight with Singapore Airlines departs from London Gatwick Airport on Sat, Mar 15, arriving at Siem Reap Angkor International Airport. One-way Prices start from PHP 29,267 including taxes and charges.

      • LHR09:10 am
        21h 50m
        1 stop
        SAI02:00 pm
        Mon, Mar 10|London - Siem Reap|Singapore Airlines
        PHP 29,339
        PHP 29,339

        Choose Singapore Airlines flights from London to Siem Reap. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Mon, Mar 10, arriving at Siem Reap Angkor International Airport. One-way Prices start from PHP 29,339 including taxes and charges.

      • LHR09:10 am
        21h 50m
        1 stop
        SAI02:00 pm
        Mon, Mar 17|London - Siem Reap|Singapore Airlines
        PHP 29,546
        PHP 29,546

        Choose Singapore Airlines flights from London to Siem Reap. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Mon, Mar 17, arriving at Siem Reap Angkor International Airport. One-way Prices start from PHP 29,546 including taxes and charges.

      • LHR10:05 pm
        32h 45m
        1 stop
        SAI01:50 pm
        Tue, Mar 11|London - Siem Reap|Singapore Airlines
        PHP 29,793
        PHP 29,793

        Choose Singapore Airlines flights from London to Siem Reap. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Tue, Mar 11, arriving at Siem Reap Angkor International Airport. One-way Prices start from PHP 29,793 including taxes and charges.

      • LHR09:10 am
        21h 40m
        1 stop
        SAI01:50 pm
        Fri, Mar 7|London - Siem Reap|Singapore Airlines
        PHP 30,223
        PHP 30,223

        Choose Singapore Airlines flights from London to Siem Reap. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Fri, Mar 7, arriving at Siem Reap Angkor International Airport. One-way Prices start from PHP 30,223 including taxes and charges.

      • LGW09:25 am
        21h 35m
        1 stop
        SAI02:00 pm
        Fri, Mar 14|London - Siem Reap|Singapore Airlines
        PHP 31,028
        PHP 31,028

        Choose Singapore Airlines flights from London to Siem Reap. The one-way connecting flight with Singapore Airlines departs from London Gatwick Airport on Fri, Mar 14, arriving at Siem Reap Angkor International Airport. One-way Prices start from PHP 31,028 including taxes and charges.

      • LHR10:55 am
        20h 5m
        1 stop
        SAI02:00 pm
        Wed, Mar 19|London - Siem Reap|Singapore Airlines
        PHP 31,283
        PHP 31,283

        Choose Singapore Airlines flights from London to Siem Reap. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Wed, Mar 19, arriving at Siem Reap Angkor International Airport. One-way Prices start from PHP 31,283 including taxes and charges.

      • LON01:00 pm
        3h 5m
        Nonstop
        REP02:00 pm
        Sat, Feb 22|London - Siem Reap|Singapore Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

London to Siem Reap Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. EK066

    Emirates

    02:55 pm

    STN

    7.1h

    01:00 am

    DXB

    SMTWTFS
    Search

  2. EK376

    Emirates

    03:45 am

    DXB

    6.3h

    01:00 pm

    BKK

    SMTWTFS

  3. FD618

    Thai AirAsia

    07:00 pm

    DMK

    1.0h

    08:00 pm

    SAI

    SMTWTFS

  4. T5428

    Turkmenistan

    04:55 pm

    LGW

    5.9h

    02:50 am

    ASB

    -----F-
    Search

  5. T5647

    Turkmenistan

    04:20 am

    ASB

    6.8h

    01:05 pm

    BKK

    ------S

  6. FD618

    Thai AirAsia

    07:00 pm

    DMK

    1.0h

    08:00 pm

    SAI

    SMTWTFS

  7. QR006

    Qatar Airways

    08:05 am

    LHR

    6.7h

    05:45 pm

    DOH

    SMTWTFS
    Search

  8. QR830

    Qatar Airways

    08:30 pm

    DOH

    6.8h

    07:20 am

    BKK

    SMTWTFS

  9. FD614

    Thai AirAsia

    01:30 pm

    DMK

    1.0h

    02:30 pm

    SAI

    SMTWTFS

  10. SQ305

    Singapore Airlines

    09:25 am

    LHR

    13.1h

    05:30 am

    SIN

    SMTWTFS
    Search

  11. AK704

    AirAsia

    10:30 am

    SIN

    1.1h

    11:35 am

    KUL

    SMTWTFS

  12. AK540

    AirAsia

    01:05 pm

    KUL

    2.2h

    02:15 pm

    SAI

    S-TWT-S

  13. SQ305

    Singapore Airlines

    09:25 am

    LHR

    13.1h

    05:30 am

    SIN

    SMTWTFS
    Search

  14. KT321

    AirAsia Cambodia

    12:50 pm

    SIN

    2.2h

    02:00 pm

    SAI

    -M-W-F-

  15. SQ309

    Singapore Airlines

    10:15 am

    LGW

    13.1h

    06:20 am

    SIN

    SM--TFS
    Search

  16. KT321

    AirAsia Cambodia

    12:50 pm

    SIN

    2.2h

    02:00 pm

    SAI

    -M-W-F-

  17. MU202

    China Eastern Airlines

    10:30 am

    LGW

    11.6h

    06:05 am

    PVG

    SMTWTFS
    Search

  18. MU541

    China Eastern Airlines

    09:05 am

    PVG

    4.4h

    12:30 pm

    BKK

    SMTWTFS

  19. FD618

    Thai AirAsia

    07:00 pm

    DMK

    1.0h

    08:00 pm

    SAI

    SMTWTFS

  20. MU202

    China Eastern Airlines

    10:30 am

    LGW

    11.6h

    06:05 am

    PVG

    SMTWTFS
    Search

  21. MU5820

    China Eastern Airlines

    07:50 am

    PVG

    3.8h

    11:40 am

    KMG

    SMTWTFS

  22. MU753

    China Eastern Airlines

    01:30 pm

    KMG

    2.5h

    03:00 pm

    SAI

    --T-T-S

  23. MH003

    Malaysia Airlines

    11:00 am

    LHR

    13.3h

    07:15 am

    KUL

    SMTWTFS
    Search

  24. AK540

    AirAsia

    01:05 pm

    KUL

    2.2h

    02:15 pm

    SAI

    S-TWT-S

  25. SQ317

    Singapore Airlines

    11:25 am

    LHR

    13.1h

    07:30 am

    SIN

    SMTWTFS
    Search

  26. KT321

    AirAsia Cambodia

    12:50 pm

    SIN

    2.2h

    02:00 pm

    SAI

    -M-W-F-
Find more flights and airlines

When is the cheapest time to fly from London to Siem Reap?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from London (LON) to Siem Reap (REP) the cheapest?

    Airlines adjust prices for flights from London to Siem Reap based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from London (LON) to Siem Reap (REP) cost?

    According to Trip.com's data, the lowest price is around PHP 56,358.

  • What is the transportation method from the main airport to downtown in Siem Reap?

    • The distance from Siem Reap Angkor International Airport to downtown is about 39 km. It takes about 50 minutes by taxi.

How to find a cheap flight from London to Siem Reap

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from London to Siem Reap. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | London to Siem Reap

Cheapest nonstop flight pricePHP 28,844
Off-season for travelJanuary
Peak season for travelDecember
Flight distance9,783.08 km
Popular airlineEVA Air

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.