4.9
4.6Journey information
Overview: London to Siem Reap flight
United Kingdom
Cambodia
Flights from London to Siem Reap depart on average 74 times per day, taking around 21h 13m. Cheap flight tickets for this journey start at $764 (€620) if you book in advance.
The earliest flight runs at 05:30, the last at 20:25. The fastest flight covers the 6081 miles (9788 km) distance in 21h 0m. January is the cheapest month to fly.
Distance 6081 miles (9788 km) |
Average flight duration 21h 13m |
Cheapest ticket price $764 (€620) |
Flights per day 74 |
Fastest flight 21h 0m |
First flight 05:30 |
Last flight 20:25 |
Cheapest month Jan |
Cheapest day Sun |
High season Jul - Sep |
Low season Jan - Mar |
The cheapest and fastest flights from London to Siem Reap
Cheapest price
$768
Average price
$768
Fastest journey
21 h 35 m
Average duration
21 h 35 m
Flights per day
1
Distance
9788 km
The best way to find a cheap flight ticket from London to Siem Reap is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from London to Siem Reap will cost around $768 if you buy it on the day, but the cheapest tickets can be found for only $768.
Of the 1 flights that leave London for Siem Reap onSun, Mar 22, 1 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Sun, Mar 22 the direct flights cover the 9788 km distance in an average of 21 h 35 m but if you time it right, some flights will get you there in just 21 h 35 m .
On Sun, Mar 22 the longest flights will take 21 h 35 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.
Compare prices and tickets London to Siem Reap by flight
Compare flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Mar 22
Mar 23
Mar 24
Mar 25
Mar 26
Mar 27
Mar 28
FAQs: London to Siem Reap Flight
Find answers to the most common questions about traveling from London to Siem Reap by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at Siem Reap, this guide helps you travel smarter and with confidence.
- Angkor Wat International Half Marathon, a unique race that takes participants through the stunning temples of Angkor Wat
- Bon Om Touk (Water Festival), a vibrant celebration marking the end of the rainy season with boat races and cultural performances
- Khmer New Year, a festive three-day celebration filled with traditional games, dances, and family gatherings.
- Khmer New Year, vibrant cultural celebrations with traditional games and festivities
- Pchum Ben, a unique opportunity to experience local customs and pay respects to ancestors
- Water Festival, spectacular boat races and lively street celebrations.
popular airports
Popular airports from London to Siem Reap
Wifi
Shopping
Parking
ATM
Taxis
Accessibility
WC
Shower
Lounge
Lost and Found Office
- Free Wi-Fi available throughout the airport for 90 minutes.
- Shops are located in both terminals, including Harrods and World Duty Free.
- Short stay parking available at both terminals, approximately 6€ (£5) for 30 minutes.
- Available outside the terminal.
- Assistance.
- Available throughout the airport, including accessible facilities.
- Yes
- Lounges available in both terminals, including No1 Lounge and Club Aspire.
- Located in the South Terminal, inquiries can be made online or in person.
- Train: Gatwick Express, Southern, Thameslink
- Bus: National Express, Metrobus
WifiShoppingParkingATMTaxisAccessibilityWCShowerLoungeLost and Found Office- Free Wi-Fi available throughout the airport for up to 4 hours.
- Shops are located throughout all terminals, including Harrods and World Duty Free.
- Short Stay parking available near each terminal, approximately 6.3€ (£5.30) for 30 minutes.
- Available outside the terminal.
- Assistance.
- Available throughout the airport, including accessible facilities.
- Yes
- Lounges available in all terminals, including British Airways and Plaza Premium lounges.
- Located at each terminal, contact Heathrow Airport Lost Property.
- Bus: 105, 111, 140, 285, 423
- Metro: Piccadilly Line
- Train: Heathrow Express, TfL Rail
WifiShoppingParkingATMTaxisAccessibilityWCLoungeLost and Found Office- Free Wi-Fi available throughout the airport.
- Shops in the terminal, including WHSmith and Aelia Duty-Free.
- Short-term and long-term parking available, starting at approximately 4.2€ (£3.50) per hour.
- Available outside the terminal.
- Elevators, ramps.
- Available throughout the airport.
- Lounge available, including the First Class Lounge.
- Located in the terminal, contact information desk.
- DLR
- Bus 473
- Bus 474
More options for your journey from London to Siem Reap
Here are some other resources that might have the information you need
Most popular flights to and from Siem Reap and London
Most popular flights to Siem Reap
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