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Flight tickets from Siem Reap–Angkor to London

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Flight deals from Siem Reap–Angkor to London

Looking for a cheap last-minute deal or the best return flight from Siem Reap–Angkor Airport to London? If you want to travel next month, return fares start from ₹ 100,940. Find the lowest prices on one-way and return tickets right here.
London.₹ 34,967 per passenger.Departing Mon, 2 Nov.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Siem Reap–Angkor on Mon, 2 Nov, arriving in London Gatwick.Price includes taxes and charges.From ₹ 34,967, select.
London.₹ 37,087 per passenger.Departing Wed, 28 Oct.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Siem Reap–Angkor on Wed, 28 Oct, arriving in London Gatwick.Price includes taxes and charges.From ₹ 37,087, select.
London.₹ 38,487 per passenger.Departing Mon, 28 Dec.One-way flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Siem Reap–Angkor on Mon, 28 Dec, arriving in London Heathrow.Price includes taxes and charges.From ₹ 38,487, select.
London.₹ 39,348 per passenger.Departing Wed, 30 Sep.One-way flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Siem Reap–Angkor on Wed, 30 Sep, arriving in London Heathrow.Price includes taxes and charges.From ₹ 39,348, select.
London.₹ 39,733 per passenger.Departing Sun, 21 Jun.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Siem Reap–Angkor on Sun, 21 Jun, arriving in London Heathrow.Price includes taxes and charges.From ₹ 39,733, select.
London.₹ 41,184 per passenger.Departing Tue, 7 Jul.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Siem Reap–Angkor on Tue, 7 Jul, arriving in London Gatwick.Price includes taxes and charges.From ₹ 41,184, select.
London.₹ 44,862 per passenger.Departing Fri, 29 May.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Fri, 29 May, arriving in London Gatwick.Price includes taxes and charges.From ₹ 44,862, select.
London.₹ 48,013 per passenger.Departing Sun, 31 Jan.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Siem Reap–Angkor on Sun, 31 Jan, arriving in London Gatwick.Price includes taxes and charges.From ₹ 48,013, select.
London.₹ 49,911 per passenger.Departing Wed, 3 Feb.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Siem Reap–Angkor on Wed, 3 Feb, arriving in London Gatwick.Price includes taxes and charges.From ₹ 49,911, select.
London.₹ 50,028 per passenger.Departing Wed, 10 Mar.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Siem Reap–Angkor on Wed, 10 Mar, arriving in London Gatwick.Price includes taxes and charges.From ₹ 50,028, select.
London.₹ 52,796 per passenger.Departing Thu, 22 Apr.One-way flight with Emirates.Outbound indirect flight with Emirates, departs from Siem Reap–Angkor on Thu, 22 Apr, arriving in London Heathrow.Price includes taxes and charges.From ₹ 52,796, select.
London.₹ 53,931 per passenger.Departing Tue, 4 Aug.One-way flight with Emirates.Outbound indirect flight with Emirates, departs from Siem Reap–Angkor on Tue, 4 Aug, arriving in London Heathrow.Price includes taxes and charges.From ₹ 53,931, select.
London.₹ 59,281 per passenger.Departing Wed, 5 May.One-way flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Siem Reap–Angkor on Wed, 5 May, arriving in London Heathrow.Price includes taxes and charges.From ₹ 59,281, select.

Find the cheapest month to fly from Siem Reap–Angkor to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Siem Reap–Angkor to London flights are currently cheapest in November.
May
from ₹ 44,883
Jun
from ₹ 39,751
Jul
from ₹ 41,203
Aug
from ₹ 53,955
Sep
from ₹ 39,366
Oct
from ₹ 37,103
Nov
from ₹ 34,982
Dec
from ₹ 38,504
Jan
from ₹ 48,034
Feb
from ₹ 49,933
Mar
from ₹ 50,051
Apr
from ₹ 52,820

Alternative Siem Reap–Angkor to London routes

Looking for the cheapest, fastest or easiest route from Siem Reap–Angkor to London? You could fly into the following airports instead.

London City

12km from central London
Closest
from ₹ 61,958
Search flights

London Heathrow

23km from central London
from ₹ 38,504
Search flights

London Gatwick

40km from central London
Cheapest
from ₹ 34,982
Search flights

London Luton

45km from central London
from ₹ 47,148
Search flights

London Stansted

49km from central London
from ₹ 47,286
Search flights

London Southend

57km from central London
from ₹ 55,144
Search flights

Siem Reap to London: Flight information

The things to know before you go.
Cheapest flight found₹ 34,967
Cheapest month to flyNovember

Finding cheap flights from Siem Reap–Angkor to London: Frequently asked questions

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Siem Reap–Angkor to London is ₹ 99,156. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Siem Reap–Angkor to London. But we found flights with one or more stops from ₹ 99,156.
As of May 2026, there are no flights flying from Siem Reap–Angkor to London.
The cheapest month to fly from Siem Reap–Angkor to London is usually November.
If you're flying from Siem Reap–Angkor Airport, the cheapest airport near London is London Stansted – which is 48.6 km away from the centre of London. We've found flights into this airport from ₹ 99,156.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Siem Reap–Angkor Airport to London on Tuesday, 24 November 2026.
No airlines currently offer direct flights between Siem Reap–Angkor Airport and London. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 12°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
Currently, Emirates offers the cheapest flight tickets to London.

Travelling from Siem Reap-Ankor International Airport (SAI) to London: what you need to know

  • Siem Reap-Ankor International Airport is located in Siem Reap. Based in the UTC+0 timezone, London is seven hours behind Siem Reap.

  • For stress-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to catch your SAI to London flight.

  • You'll likely experience longer queues in popular months like August. Arriving up to four hours ahead of international flights and two hours for a domestic departure will help ensure a smooth travel experience.

  • Stopovers are the perfect opportunity to break up your trip and perhaps even tick a new city off your list. When browsing for plane tickets from SAI to London, deselect the 'Direct flights only' box to see where you can visit along the way. Some popular options include:

    • Kuala Lumpur International Airport (KUL)

    • Suvarnabhumi Airport (BKK)

    • Changi International Airport (SIN)

  • Central Siem Reap to SAI is around 40 kilometres. Depending on traffic, it'll take you about 1 hour to get there if you're driving, catching a cab or ride-sharing.

  • Siem Reap-Ankor International Airport maintains a strong on-time record, so you're less likely to experience disruptions. Departures from SAI arrive on schedule 80.01% of the time.

How to find the cheapest flights from Siem Reap-Ankor International Airport (SAI) to London

  • ₹ 34,967 is the lowest price we've found for a one-way Siem Reap-Ankor International Airport to London flight. A return flight ticket right now is ₹ 99,156. Depending on when you want to go and the availability, these fares can change.

  • Booking ahead of time is often the key to locking in a cheap flight from SAI to London. Airlines adjust prices based on demand, so the nearer you get to departure, the more it could cost you.

  • The 'Whole month' search tool will show you the cheapest tickets from Siem Reap-Ankor International Airport to London across the month. It's a great way to find a bargain if your plans aren't set in stone.

  • Picking up a cheap flight from SAI to London is a breeze with Price Alerts. All you need to do is set up one of these automatic notifications and we'll notify you as soon as a new discount appears.

  • Tailor your flights with filters. Select your ideal arrival and departure times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from Siem Reap-Ankor International Airport to London.

Airports in London

London Heathrow Airport (LHR)

  • The distance from London Heathrow Airport (LHR) to central London is roughly 31 kilometres. It takes about 55 minutes to reach the centre driving.

  • It'll take around 1 hour if you're travelling on public transport.

  • If you're arriving on a late flight from Siem Reap-Ankor International Airport to London, nothing beats the convenience of staying close to the terminal. Pick up your bags from the carousel and then be showered and relaxing soon after at one of these hotels near LHR:

  • Go wherever you want, whenever you want with a London Heathrow Airport rental car. Pick up your wheels from Surprice, U-Save or Green Motion and venture far and wide through London and beyond.

  • For the best deal, book your ride from London Heathrow Airport around one week in advance of your flight from SAI to London.

London Gatwick Airport (LGW)

  • Central London is located around 80 kilometres from London Gatwick Airport (LGW). After your flight from Siem Reap-Ankor International Airport to London has hit the runway and you've navigated your way to arrivals, expect a drive of about 1 hour 20 minutes.

  • If you're catching public transport, it'll take around 30 minutes.

  • After stepping off your SAI to London flight, rest your head at a hotel near LGW. These are some great accommodation options that'll help you sink into relaxation mode:

  • The quickest way to reach your destination is with a London Gatwick Airport rental car. Pick up your wheels from Green Motion, U-Save or Drivalia and set off in the blink of an eye.

  • Avoid paying more than you need to. Booking your ride three weeks ahead of your arrival at LGW will help you stay within budget.

Stansted Airport (STN)

  • Find your way to the city centre after your flight from Siem Reap-Ankor International Airport to London has touched down. Central London is around 64 kilometres from Stansted Airport (STN) and takes roughly 1 hour to reach by car.

  • If you're travelling on public transport, the journey time is about 1 hour 25 minutes.

  • Enjoy a low-stress, comfortable start to your trip by checking in to a hotel near STN after your SAI to London flight. Take a load off after a long travel day or simply take a moment to get your footing in a new city at:

  • Begin your trip without worrying about how to get to your destination with a Stansted Airport rental car. Book your ideal wheels with reliable companies here like Green Motion, Drivalia and Europcar.

  • Plan ahead and enjoy the payoff. Book your vehicle from STN four weeks before your flight from Siem Reap-Ankor International Airport to London to access the best rates.

Best time to go to London

  • Before you book your flights from Siem Reap-Ankor International Airport to London, consider which time of year works best for you. High season in London offers a bustling atmosphere and plenty to do, while the off-season means you'll get better hotel deals and fewer crowds.

  • Lock in a Siem Reap-Ankor International Airport to London plane ticket with a departure in July to visit the city during its warmest month. You can expect temperatures to range from 11ºC to 26ºC.

  • January has average temperatures of between 0ºC and 9ºC. Look for a cheap ticket from SAI to London around that time if you want to travel in cooler conditions.

More about London

  • When it comes to searching for somewhere to lay your head, you'll find the best places to stay in London right here. Browse these hotels once you've booked your flight from Siem Reap-Ankor International Airport to London:

  • The British Museum and Big Ben are just a couple of the big attractions to put on your London must-do list. Continue your sightseeing adventures at Buckingham Palace.

Explore more of United Kingdom

  • London will leave a lasting impression, but there are so many other corners of United Kingdom you should also see. About 161 kilometres north-west of London, a trip to Birmingham will keep your itinerary packed. Don't miss top attractions like Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • Around 177 kilometres west of London, Bristol is another favourite stop in United Kingdom. Experience the best of this destination with a visit to Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

Plan the rest of your trip from Siem Reap to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.