London LON to Siem Reap REP Flights

Wed, Nov 05
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Vueling Airlines
easyJet
Ryanair
KM Malta Airlines
Transavia France
1,000+ travel companies
Vueling Airlines
easyJet
Ryanair
KM Malta Airlines
Transavia France
1,000+ travel companies
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Journey information

Overview: London to Siem Reap flight

United KingdomUnited Kingdom
CambodiaCambodia
Icon of flight
Flights from London to Siem Reap depart on average 71 times per day, taking around 19h 0m. Cheap flight tickets for this journey start at $936 (€766) if you book in advance.
The earliest flight runs at 05:30, the last at 21:35. The fastest flight covers the distance in 19h 0m. August 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
Average flight duration
19h 0m
Cheapest ticket price
$936 (€766)
Flights per day
71
Fastest flight
19h 0m
Cheapest month to travel
August
First flight
05:30
Last flight
21:35
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

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.
FAQs
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 seasons to visit Siem Reap are Dry season or November to March. The best weather to explore Siem Reap is during November-February.
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.

popular airports

Popular airports from London to Siem Reap

London
Siem Reap
The major airport for departures in London is London Gatwick Airport. Find all the information you need to know about services, amenities and connections at London Gatwick Airport for your trip from London to Siem Reap.
Amenities at airport
WifiWifi
ShoppingShopping
ParkingParking
ATMATM
TaxisTaxis
AccessibilityAccessibility
WCWC
ShowerShower
LoungeLounge
Lost and Found OfficeLost and Found Office
information
ticketOfficeHours
Distance to city center
1 km
carConnection
Car connection
M23, Junction 9
Wifi
Wifi
  • Free Wi-Fi available throughout the airport for 90 minutes.
Shopping
Shopping
  • Shops are located in both terminals, including Harrods and World Duty Free.
Parking
Parking
  • Short stay parking available at both terminals, approximately 6€ (£5) for 30 minutes.
Taxis
Taxis
  • Available outside the terminal.
Accessibility
Accessibility
  • Assistance.
WC
WC
  • Available throughout the airport, including accessible facilities.
Shower
Shower
  • Yes
Lounge
Lounge
  • Lounges available in both terminals, including No1 Lounge and Club Aspire.
Lost and Found Office
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
WifiWifi
ShoppingShopping
ParkingParking
ATMATM
TaxisTaxis
AccessibilityAccessibility
WCWC
ShowerShower
LoungeLounge
Lost and Found OfficeLost and Found Office
information
ticketOfficeHours
Distance to city center
23 km
carConnection
Car connection
M4, Junction 4
Wifi
Wifi
  • Free Wi-Fi available throughout the airport for up to 4 hours.
Shopping
Shopping
  • Shops are located throughout all terminals, including Harrods and World Duty Free.
Parking
Parking
  • Short Stay parking available near each terminal, approximately 6.3€ (£5.30) for 30 minutes.
Taxis
Taxis
  • Available outside the terminal.
Accessibility
Accessibility
  • Assistance.
WC
WC
  • Available throughout the airport, including accessible facilities.
Shower
Shower
  • Yes
Lounge
Lounge
  • Lounges available in all terminals, including British Airways and Plaza Premium lounges.
Lost and Found Office
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

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