Question 1

How far ahead should I book a flight from London to Southeast Asia?

Accepted Answer

The price you pay for your flight from London to Southeast Asia may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 2

What is the cheapest month to book a flight from London to Southeast Asia?

Accepted Answer

Currently, November is the cheapest month in which you can book a flight from London to Southeast Asia (average of $1,181). Flying from London to Southeast Asia in December is currently the most expensive (average of $1,979). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 3

Weekly flight availability from London to Southeast Asia

Accepted Answer

The most flights from LON to zzYJX are scheduled on a Tuesday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

Question 4

E

Accepted Answer

In terms of precipitation, rainfall in Southeast Asia ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Southeast Asia when rainfall is around 10.0 mm.

Question 5

E

Accepted Answer

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

Question 6

What are the most popular routes from London to Southeast Asia?

Accepted Answer

While some choose either London Stansted - Denpasar Bali Ngurah Rai or London City - Phuket City, London City - Denpasar Bali Ngurah Rai is the most popular route from London to Southeast Asia.

Question 7

What are the cheapest flights from London to Southeast Asia?

Accepted Answer

On average you can expect to pay $1,518 for a flight from London to Southeast Asia. The cheapest flight overall is $1,060 while the most popular route, (London City - Denpasar Bali Ngurah Rai) is currently priced at $874.

Question 8

What are the most reliable airlines from London to Southeast Asia?

Accepted Answer

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Southeast Asia on time: Thai Airways (79%), EVA Air (78%), Air Canada (74%).

Question 9

What is the cheapest time of day to fly from LON to YJX?

Accepted Answer

When flying from London to Southeast Asia, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 37% versus a flight in the evening.

Question 10

Can I find deals for flights from London to Southeast Asia that include hotel bookings?

Accepted Answer

Yes. In addition to deals on London to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 11

How can I find direct flights from London to Southeast Asia?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Southeast Asia.

Question 12

Can I find deals for business class flights from London to Southeast Asia?

Accepted Answer

Yes. Cheapflights offers flight deals from London to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 13

How does Cheapflights help users find flights from London to Southeast Asia?

Accepted Answer

When you search for this flight from London to Southeast Asia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Question 14

Why should you use Cheapflights to find cheap flight tickets from London to Southeast Asia?

Accepted Answer

Cheapflights helps you find that perfect flight to Southeast Asia from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Question 15

Can Cheapflights find flights from London to Southeast Asia with no change fees?

Accepted Answer

Yes! Cheapflights helps users easily find flights from London to Southeast Asia with no change fees.

Question 16

Can Cheapflights notify me if prices for flights from London to Southeast Asia become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from London to Southeast Asia on Cheapflights with our Price Alert feature and get notified when better prices are available.

Popular in	December
Cheapest in	September
Average price	$1,164

Cheap flights from London to Southeast Asia

Find flight deals from London to Southeast Asia

Popular in

Cheapest in

Average price

Cheapflights Insights

How far ahead should I book a flight from London to Southeast Asia?

The price you pay for your flight from London to Southeast Asia may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London to Southeast Asia?

What is the cheapest time of day to fly from LON to YJX?

When flying from London to Southeast Asia, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 37% versus a flight in the evening.

Weekly flight availability from London to Southeast Asia

The most flights from LON to zzYJX are scheduled on a Tuesday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

Reviews of airlines servicing Southeast Asia

See what other customers who have flown with Etihad Airways from London to Southeast Asia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What are the most popular routes from London to Southeast Asia?

What are the most reliable airlines from London to Southeast Asia?

What are the cheapest flights from London to Southeast Asia?

Can I find deals for flights from London to Southeast Asia that include hotel bookings?

How can I find direct flights from London to Southeast Asia?

Can I find deals for business class flights from London to Southeast Asia?

What is the cheapest month to book a flight from London to Southeast Asia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Southeast Asia by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from London to Southeast Asia by cabin class

Find flights from London to Southeast Asia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and Southeast Asia flights

Browse other London and Southeast Asia flight options. Last updated on 7 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from London to Southeast Asia?

Why should you use Cheapflights to find cheap flight tickets from London to Southeast Asia?

Can Cheapflights find flights from London to Southeast Asia with no change fees?

Can Cheapflights notify me if prices for flights from London to Southeast Asia become cheaper?

100% Free

Book with flexibility

Travel Smart