- Recommended
Angkor National Museum
Modern museum with galleries on Khmer civilization, Angkor history, religion, and sculpture. A strong primer before visiting the temples.
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Journey information
Overview: London to Siem Reap flight
United Kingdom
Cambodia
Flights from London to Siem Reap depart on average 88 times per day, taking around 25h 14m. Cheap flight tickets for this journey start at $757 (€620) if you book in advance.
The earliest flight runs at 05:30, the last at 22:40. The fastest flight covers the 6081 miles (9788 km) distance in 21h 0m. February is the cheapest month to fly.
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance 6081 miles (9788 km) |
Average flight duration 25h 14m |
Cheapest ticket price $757 (€620) |
Flights per day 88 |
Fastest flight 21h 0m |
First flight 5:30 AM |
Last flight 10:40 PM |
Cheapest Month Feb |
Cheapest Day Sun |
High Season Jan - Mar |
Low Season Apr - Jun |
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
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.
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Why should you book London to Siem Reap flights with Omio?
Austrian Airlines operates all flights services from London to Siem Reap.
Omio is an official ticket reseller for all your travel options from London to Siem Reap.
Why book with Omio vs Austrian Airlines?
- Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
Airlines: Austrian Airlines from London to Siem ReapFind the best flights between London to Siem Reap with Omio's travel partners Austrian Airlines from $757 (€620). We can find you the best deals, schedules and tickets when comparing and booking the best trip.
Austrian Airlines
About
Austrian Airlines is the flag carrier of Austria and a member of the Lufthansa Group, offering flights across Europe and to long-haul destinations in Asia, North America, and beyond. Operating primarily from Vienna International Airport, Austrian combines efficiency with warm hospitality. Economy Class passengers enjoy comfort, onboard entertainment, and meals, while Business Class offers spacious seating, fine dining inspired by Austrian cuisine, and lounge access. With a reputation for quality service and reliable connections, Austrian Airlines is a trusted choice for travelers worldwide
Luggage & cancellation policy
Average Duration
28h 0m
Cheapest Price
$873 (€715)
Austrian Airlines frequency
3 a day
Luggage included
1 carry-on bag (max. 8kg, 55x40x23cm) and 1 personal item (40x30x10cm) included in Economy
Additional luggage
Additional baggage can be purchased online or at the airport. Fees vary by route.
Cancellation Policy
Refund depends on ticket type - Light fares non-refundable, Classic and Flex fares refundable with fee.
Pregnant on board
Pregnant women can travel until end of 36th week (32nd week for multiple pregnancies). Medical certificate required after 28th week.
Unaccompagned minor
Unaccompanied minor service available for children aged 5-11 (mandatory) and 12-17 (optional). Must be booked at least 48 hours in advance.
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
Austrian Airlines provides assistance for passengers with reduced mobility. Pre-notification required 48 hours before departure.
Pets
Small pets in cabin, max 8kg including transport container. Larger animals in cargo hold.
Entertaiment on board
Complete guide to Siem Reap
Things to do in Siem Reap
Discover the best of Siem Reap — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Siem Reap trip today.
Theam's Gallery
Contemporary art gallery and atelier showcasing Cambodian visual art, design, and craft in a peaceful garden setting.
Angkor Artwork E&T Stocker
Art gallery and workshop space focused on Cambodian sculpture and traditional craftsmanship, offering a more local, lesser-known stop.
- Must visit
Pub Street
Siem Reap’s best-known pedestrian-friendly nightlife street, busy with visitors and a central reference point in the old town.
- Recommended
Old Market Area
Lively central district around Psar Chas with shops, alleys, and easy walking access to many visitor services and riverfront spots.
- Recommended
Siem Reap River
Pleasant riverside walking area with bridges, greenery, and temples, especially nice for an easy stroll through the town center.
- Gluten-free
Fish Amok
Cambodia’s signature curry of freshwater fish steamed in banana leaf with kroeung, coconut, and herbs. It is especially popular in Siem Reap and widely considered a must-try Khmer dish.
Beef Lok Lak
A classic Khmer stir-fried beef dish served with pepper-lime dipping sauce, lettuce, tomatoes, and often rice. It is a staple in local restaurants and a familiar introduction to Cambodian flavors.
- Gluten-free
Nom Banh Chok
Often called Khmer noodles, this breakfast favorite features fresh rice noodles topped with a light green fish gravy and local herbs and vegetables. It is deeply tied to everyday Cambodian food life.
Cuisine Wat Damnak
A highly regarded fine-dining restaurant known for refined Khmer tasting menus based on seasonal Cambodian ingredients. The atmosphere is elegant yet intimate.
Mahob Khmer Cuisine
A well-known restaurant set in a traditional wooden house, serving polished Khmer classics in a stylish garden setting. Popular for authentic local flavors.
Chanrey Tree
An established riverside restaurant specializing in Cambodian dishes such as fish amok and regional specialties. It is known for warm service and a relaxed atmosphere.
Cambodian Riel
Affordable for most tourists. Street food and local transport are cheap, while hotels and upscale dining stay reasonable by regional standards.
Average meal costs
- Budget
- KHR 12,000-20,000 for street food or simple local meals.
- Mid-range
- KHR 24,000-48,000 per person at a casual restaurant.
- Fine dining
- KHR 80,000+ per person at upscale restaurants.
- Coffee
- KHR 8,000-14,000 for a coffee.
Tipping culture
Tipping is not mandatory but appreciated. In restaurants, leave 5-10% for good service. Small tips for drivers, guides, hotel staff, and spa workers are common.
PassApp
Get the appOfficial public transport app
Prices
- Single ticket
- USD 0.50
- Day pass
- None
To the city center
Siem Reap Angkor International Airport, Siem Reap -> Siem Reap City Center, Siem Reap
- Distance
- 45 km
- Travel time
- 60 min
- PassApp is widely used for tuk-tuks and taxis in Siem Reap, especially for airport transfers and city travel. Fares are usually shown in the app before booking.
- Card payment on local buses and tuk-tuks is not standard, so carry small amounts of USD or KHR cash. Confirm the fare before boarding if you are not using an app.
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.
Cheap plane tickets from London to Siem Reap can start from as little as $757 (€620) when you book in advance. The average flight ticket price for London to Siem Reap is $870 (€712) ; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by plane from London to Siem Reap is 21h 0m to travel the 6081 miles (9788 km) long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest flight from London to Siem Reap leaves at 5:30 AM. Plan your trip with the Journey Planner from Omio.
The latest flight from London to Siem Reap leaves at 10:40 PM.
There are 88 flights a day from London to Siem Reap which require at least one change with Austrian Airlines. Schedules can vary on holidays or weekends with fewer flights.
When taking a flight from London to Siem Reap, you can count on Austrian Airlines for the best way to get you to Siem Reap. You can also check all possible airlines who offer a service between London and Siem Reap and compare the amenities they offer before buying a plane ticket.
The cheapest month for a flight from London to Siem Reap is February.
Yes, you can take a flight between London and Siem Reap.
Since neither London nor Siem Reap are in the Schengen Area, passport requirements depend on the specific immigration rules of United Kingdom and Cambodia. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is a time difference of 7 h in winter and 6 h in summer between London and Siem Reap.
The best events to attend in Siem Reap include:
- 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.
The best holidays to experience in Siem Reap include:
- 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.
The best season to visit Siem Reap is Dry season or November to March. The best weather to explore Siem Reap is during November-February.
We recommend using the flight as it is the most popular way to get from London to Siem Reap among Omio's users.
For international flights we recommend to arrive 2.5 to 3 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.
The official currency in Cambodia is the Cambodian Riel (KHR), but the US dollar is widely accepted and commonly used. Travelers often find it convenient to use cash, especially in markets and smaller establishments, while cards are accepted in larger hotels and some restaurants in urban areas. Carrying both cash and card is recommended for flexibility.
In Siem Reap, travelers should be cautious of tuk-tuk drivers overcharging or taking longer routes, as well as scams involving inflated prices for temple entry tickets or guided tours. Petty theft, such as pickpocketing in crowded areas, can occur. It's advisable to use reputable transportation services and confirm prices upfront to avoid common scams. Additionally, travelers should stay aware of their belongings, especially near popular sites like Angkor Wat.
Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.
popular airports
Popular airports from London to Siem Reap
London
Siem Reap
The major airport for departures in London is London Heathrow Airport. Find all the information you need to know about services, amenities and connections at London Heathrow Airport for your trip from London to Siem Reap.
Amenities at airport
Wifi
Shopping
Parking
ATM
Taxis
Accessibility
WC
Shower
Lounge
Lost and Found Officeinformation
Distance to city center
23 km
Car connection
M4, Junction 4Wifi
- Free Wi-Fi available throughout the airport for up to 4 hours
Shopping
- Shops are located throughout all terminals, including Harrods and World Duty Free
Parking
- Short Stay parking available near each terminal, approximately 6.3€ (£5.30) for 30 minutes
Taxis
- Available outside the terminal
Accessibility
- Assistance
WC
- Available throughout the airport, including accessible facilities
Shower
- Yes
Lounge
- Lounges available in all terminals, including British Airways and Plaza Premium lounges
Lost and Found Office
- Located at each terminal, contact Heathrow Airport Lost Property
Public transit options for London Heathrow Airport
- Bus: 105, 111, 140, 285, 423
- Metro: Piccadilly Line
- Train: Heathrow Express, TfL Rail
Amenities at airport
WifiShoppingParkingATMTaxisAccessibilityWCShowerLoungeLost and Found Officeinformation
Distance to city center
1 kmCar connection
M23, Junction 9Wifi
- Free Wi-Fi available throughout the airport for 90 minutes
Shopping
- Shops are located in both terminals, including Harrods and World Duty Free
Parking
- Short stay parking available at both terminals, approximately 6€ (£5) for 30 minutes
Taxis
- Available outside the terminal
Accessibility
- Assistance
WC
- Available throughout the airport, including accessible facilities
Shower
- Yes
Lounge
- Lounges available in both terminals, including No1 Lounge and Club Aspire
Lost and Found Office
- Located in the South Terminal, inquiries can be made online or in person
Public transit options for London Gatwick Airport
- Train: Gatwick Express, Southern, Thameslink
- Bus: National Express, Metrobus
Amenities at airport
WifiShoppingParkingATMTaxisAccessibilityWCShowerLoungeLost and Found Officeinformation
Distance to city center
1 kmCar connection
M11, Junction 8Wifi
- Free Wi-Fi available throughout the airport for 4 hours
Shopping
- Shops are located in the departure lounge, including WHSmith and Boots
Parking
- Short-stay parking located near the terminal, approximately 9.6€ (£8) for the first hour
Taxis
- Available outside the terminal
Accessibility
- Ramps, toilets
WC
- Available throughout the airport, including accessible facilities
Shower
- Yes
Lounge
- Lounges like the Escape Lounge offer amenities such as food, drinks, and showers
Lost and Found Office
- Located in the terminal, with services provided by Excess Baggage Company
Public transit options for London Stansted Airport
- Bus: National Express, Airport Bus Express
- Train: Stansted Express
The major airport for arrivals in Siem Reap is Siem Reap Angkor Airport. Find all the information you need to know about services, amenities and connections at Siem Reap Angkor Airport for your journey to Siem Reap from London.
Siem Reap Angkor Airport (SAI)
information
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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