Cheap flights from London Heathrow Airport to Southeast Asia from $525
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Southeast Asia departing on 22/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights
These are some of the best return flight deals from London Heathrow Airport to Southeast Asia 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 Heathrow Airport to Southeast Asia.
Cheap last-minute flights
Planning a quick getaway from London Heathrow Airport to Southeast Asia? 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 Southeast Asia, so you can enjoy a seamless trip without stopovers.
Air China flights from London Heathrow Airport to Southeast Asia
Our best Air China deals on London Heathrow Airport to Southeast Asia flight tickets
Air China![Air China]()
15 Mar![Air China]()
28 Mar
LHR21:35London Heathrow
31h 55m
1 stop
BKK12:30Bangkok Suvarnabhumi
BKK01:30Bangkok Suvarnabhumi
23h 20m
1 stop
LHR17:50London Heathrow
Air China![Air China]()
26 Mar![Air China]()
9 Apr
LHR17:40London Heathrow
23h 30m
1 stop
BKK00:10Bangkok Suvarnabhumi
BKK04:10Bangkok Suvarnabhumi
22h 20m
2 stops
LHR20:30London Heathrow
China Eastern flights from London Heathrow Airport to Southeast Asia
Our best China Eastern deals on London Heathrow Airport to Southeast Asia flight tickets
China Eastern![China Eastern]()
26 Mar![China Eastern]()
9 Apr
LHR17:50London Heathrow
25h 05m
1 stop
BKK01:55Bangkok Suvarnabhumi
BKK05:05Bangkok Suvarnabhumi
19h 35m
1 stop
LHR18:40London Heathrow
China Eastern![China Eastern]()
12 Mar![China Eastern]()
17 Mar
LHR17:50London Heathrow
20h 10m
1 stop
SIN22:00Singapore Changi
SIN00:25Singapore Changi
21h 30m
1 stop
LHR13:55London Heathrow
See travel insights to Southeast Asia from
How to get the cheapest flight ticket from London Heathrow Airport to Southeast Asia
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
Prices
Airlines
Other information
What is the cheapest month to fly to Southeast Asia?
The cheapest month to fly to Southeast Asia from London Heathrow Airport is in November. Flight prices, which tend to average around $1,501, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Southeast Asia, with average flight prices from London Heathrow Airport averaging around $1,515.
What is the cheapest day to depart on your flight to Southeast Asia?
Our data shows that Sunday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as $0. On the other hand, Thursday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $2,195.
What is the cheapest time of day to depart on your flight to Southeast Asia?
At midday is the cheapest time of day to fly from London Heathrow Airport to Southeast Asia when you can find flight prices for as low as $0. Flying to Southeast Asia at midday is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive, with an average ticket price of $1,726.
What is the cheapest London Heathrow to Southeast Asia flight route?
Fly from London Heathrow to Singapore Changi for the best London Heathrow - Southeast Asia flight prices
How far in advance should I book a flight to Southeast Asia?
You are more likely to see cheaper flights to Southeast Asia from London Heathrow Airport when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around $1,739 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from London Heathrow Airport for as low as $1,586 on momondo.
What cabin class options are available on London Heathrow to Southeast Asia flights?
There are 4 cabin classes available to choose from on London Heathrow to Southeast Asia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from London Heathrow to Southeast Asia?
Air China, Hainan Airlines, and Singapore Airlines are the most popular carriers operating from London Heathrow to Southeast Asia
Which airlines fly to Southeast Asia?
Etihad Airways, Air China and Singapore Airlines are the top three most popular airlines that fly to Southeast Asia from London Heathrow Airport according to our data. Etihad Airways is the first choice among our users, with 54% of people opting to fly with this airline when travelling to Southeast Asia. Keep in mind that there are 3 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.
How many flights depart from London Heathrow Airport to Southeast Asia on average per day?
As of February 2025, 51 flights take off from London Heathrow Airport and land in Southeast Asia each day. The most common flight departure time for this route is 20:00, with 63% of daily flights taking off in the evening.
How many flights depart from London Heathrow Airport to Southeast Asia on average per week?
The number of flights available between London Heathrow Airport and Southeast Asia is 361 per week as of February 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.
Cheap London Heathrow Airport to Southeast Asia flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Southeast Asia
Best price found | $525 |
|---|---|
Fastest flight time | 11h 25m |
Direct flights | Tue, Wed, Thu, Fri, Sat and Sun |
Airports in Southeast Asia | 3 airports |
When did momondo last update prices for flights from London Heathrow Airport to Southeast Asia?
Prices for flights from London Heathrow Airport to Southeast Asia are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to Southeast Asia?
There are 2 operators available for flights from London Heathrow Airport to Southeast Asia as of February 2025.
How old do you have to be to fly from London Heathrow Airport to Southeast Asia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Southeast Asia.
What documentation or ID do you need to fly to Southeast Asia?
The travel and health documents required for your trip to Southeast Asia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Southeast Asia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London Heathrow Airport to Southeast Asia?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to Southeast Asia is Airbus A350-1000, representing 19.43% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 15.23%, Boeing 777 at 14.53%, and Airbus A380-800 at 6.86%.
Best airlines flying from London Heathrow Airport to Southeast Asia
Compare and see reviews for airlines that fly from London Heathrow Airport to Southeast Asia with momondo
| Airline | Rating | Free cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $891 | Free cancellation | Rating 7.1 85 reviews | |||
| PriceFrom $1,104 | Free cancellation | Rating 8.1 1,297 reviews | |||
| PriceFrom $1,365 | Free cancellation | Rating 7.3 1,179 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to Southeast Asia?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Southeast Asia from London.
Can I find flights from London to Southeast Asia with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Southeast Asia from London with this policy.
How can momondo help me find flights from London to Southeast Asia?
momondo provides multiple filters to help you find the best flight to Southeast Asia from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from London to Southeast Asia right now. Can momondo alert me if prices change?
Price alerts on flights to Southeast Asia from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.
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