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Cheap flights from London to Siem Reap from £671

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Find the cheapest flights from London to Siem Reap

Cheap return flights

These are some of the best return flight deals from London to Siem Reap that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London to Siem Reap.

Cheap last-minute flights

Planning a quick getaway from London to Siem Reap? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Siem Reap, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from London to Siem Reap

Find recent round-trip train or bus tickets from London to Siem Reap.

All round-trip flight deals to Siem Reap

The cheapest plane tickets to Siem Reap found on KAYAK recently.
LON-SAI
6092 mimulti-stop
SAI-LON
6092 mimulti-stop
Multiple Airlines
Find Deal
LON-SAI
6092 mimulti-stop
Multiple Airlines
Find Deal

See travel insights to Siem Reap from

How to get the cheapest flight ticket from London to Siem Reap

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Siem Reap?

The month of May is, on average, the cheapest month to fly to Siem Reap from London, with most prices found around £706. If you don’t want to visit Siem Reap in May, then you should wait until June to fly from London, when ticket prices are also cheap, with an average price of £718.

What is the cheapest day to depart on your flight to Siem Reap?

On average, the least expensive day to fly to Siem Reap from London is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £739. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around £1,017. These prices are subject to change though, so be sure to set up a Price Alert for flights to Siem Reap.

What is the cheapest time of day to depart on your flight to Siem Reap?

The cheapest time of day to fly to Siem Reap is at midday when flights can be purchased for as low as £0. In contrast, the most expensive time of day to depart to Siem Reap is in the afternoon when prices are around £925.

How far in advance should I book a flight to Siem Reap?

The best time to book a flight to Siem Reap from London is 46 days out, which is when prices tend to be around £855. In the past 72 hours, momondo users found flights from London to Siem Reap for as low as £461.

When to book flights from London to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from London to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Siem Reap (LON to SAI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Siem Reap

Direct flights

None
There are no direct flights from London to Siem Reap. There are no popular flight routes from London to Siem Reap.

  • How far is London to Siem Reap–Angkor Intl by plane?

    The straight-line distance from London to Siem Reap–Angkor Intl is 6077.6 mi.

  • When did momondo last update prices for flights from London to Siem Reap–Angkor Intl Airport?

    Prices for flights from London to Siem Reap–Angkor Intl Airport are updated daily.

  • How old do you have to be to fly from London to Siem Reap–Angkor Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to Siem Reap–Angkor Intl Airport.

  • What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

    The travel and health documents you'll need for your trip to Siem Reap–Angkor Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Siem Reap–Angkor Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from London to Siem Reap?


Best airlines flying from London to Siem Reap

Compare and see reviews for airlines that fly from London to Siem Reap with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom £677Free CancellationRating
8.1
1,340 reviews
Search Singapore Airlines flights
Vietnam AirlinesPriceFrom £748Free CancellationRating
7.6
231 reviews
Search Vietnam Airlines flights
Thai AirwaysPriceFrom £863Free CancellationRating
7.7
364 reviews
Search Thai Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Siem Reap?

Finding the right flight to Siem Reap from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Siem Reap quick and easy, saving you time and money.

Can I find flights from London to Siem Reap with flexible booking policies on momondo?

Yes. All flights to Siem Reap from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Siem Reap?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Siem Reap.

I’m not ready to book a flight from London to Siem Reap right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Siem Reap flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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