₹ 28,235 Find Cheap Flights from London to Southeast Asia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Southeast Asia departing on 29/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Southeast Asia, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Best Southeast Asia Flight Deals from London

Cheapest return prices found by our users on KAYAK in the last 72 hours

Singapore
Singapore1 stop₹ 44,064
Port Blair
Port Blair1 stop₹ 125,348

Cheap Flight Deals from London to Southeast Asia (LON-zzYJX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from London to Southeast Asia

Recommended return flight deals departing in the coming months from the most popular airlines that fly from London to Southeast Asia.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
SAUDIA Logo
17:30 - 15:45LHR-SIN
63h 15m1 stop
SAUDIA Logo
03:45 - 20:30SIN-LHR
23h 45m1 stop
₹ 44,064SAUDIA
Find Deal
Sun, 4 May - Wed, 7 May
SAUDIA Logo
14:40 - 15:45LHR-SIN
18h 05m1 stop
SAUDIA Logo
02:30 - 20:30SIN-LHR
25h 00m1 stop
₹ 45,519SAUDIA
Find Deal
Tue, 13 May - Mon, 19 May
Shenzhen Airlines Logo
22:05 - 11:55LHR-SIN
30h 50m1 stop
Shenzhen Airlines Logo
03:40 - 19:50SIN-LHR
23h 10m1 stop
₹ 48,086Shenzhen Airlines
Find Deal
Sat, 24 May - Fri, 13 Jun
Shenzhen Airlines Logo
22:05 - 11:55LHR-SIN
30h 50m1 stop
Shenzhen Airlines Logo
03:40 - 20:00SIN-LHR
23h 20m1 stop
₹ 48,171Shenzhen Airlines
Find Deal
Fri, 6 Jun - Sat, 21 Jun
Etihad Airways Logo
21:45 - 09:40LHR-SIN
28h 55m1 stop
Etihad Airways Logo
21:10 - 07:00SIN-LHR
16h 50m1 stop
₹ 53,391Etihad Airways
Find Deal
Mon, 26 May - Tue, 10 Jun
Etihad Airways Logo
14:45 - 09:40LHR-SIN
35h 55m1 stop
Etihad Airways Logo
21:10 - 12:45SIN-LHR
22h 35m1 stop
₹ 53,476Etihad Airways
Find Deal
Sun, 7 Sep - Wed, 24 Sep
Finnair Logo
18:10 - 18:25LHR-SIN
17h 15m1 stop
Finnair Logo
21:35 - 09:10SIN-LHR
18h 35m1 stop
₹ 54,845Finnair
Find Deal
Wed, 30 Apr - Sun, 18 May
Finnair Logo
13:00 - 18:25LHR-SIN
22h 25m1 stop
Finnair Logo
21:35 - 15:10SIN-LHR
24h 35m1 stop
₹ 54,931Finnair
Find Deal
Fri, 16 May - Fri, 23 May
Austrian Airlines Logo
10:25 - 19:40LHR-SIN
26h 15m2 stops
Austrian Airlines Logo
20:50 - 08:20SIN-LHR
18h 30m2 stops
₹ 58,097Austrian Airlines
Find Deal
Fri, 30 May - Wed, 11 Jun
Austrian Airlines Logo
19:30 - 19:40LHR-SIN
17h 10m2 stops
Austrian Airlines Logo
20:50 - 21:40SIN-LHR
31h 50m2 stops
₹ 58,182Austrian Airlines
Find Deal
Tue, 9 Sep - Thu, 25 Sep

KAYAK's insights & trends for London to Southeast Asia flights

Get data-powered insights and trends into flights from London to Southeast Asia to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest London to Southeast Asia flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London to Southeast Asia.
The cheapest ticket to Southeast Asia from London found in the last 72 hours was to Singapore, at ₹ 69,147 return. The most popular route is from London Heathrow Airport (LHR) to Bangkok Suvarnabhumi Airport (BKK), and the cheapest round-trip airline ticket found on this route in the last 72 hours was ₹ 74,640.

What is the cheapest time of day to fly to Southeast Asia?

The average price for all round-trip flights from London to Southeast Asia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Southeast Asia is generally in the evening, when retur flights cost ₹ 795 on average. Morning departures are around 48% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally at night, which is peak travel time and where the average cost of a ticket is ₹ 1,282.

Can I save money by flying with a stopover from London to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at ₹ 202,821 on average.

What is the cheapest month to fly from London to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London to Southeast Asia is May, when tickets cost ₹ 49,540 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is ₹ 100,621 and ₹ 94,118 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below-average price on the flight from London to Southeast Asia, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low season

June

High season

December
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (33% more expensive on average)

Flights from London to Southeast Asia: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from London to Southeast Asia 
MartinFlew with Singapore AirlinesLHR-SINJan 2025
It’s a long time sitting in that seat so sit on a cushion!
Verified travelerFlew with Qantas AirwaysLHR-SINSept 2024
Unless you’re flying Business or First Class, definitely take your own travel pillow - they make a difference.
NorhayatiFlew with Malaysia AirlinesLHR-KULMar 2024
Take MH (Malaysia Airline) coz they are good
OmarFlew with Qantas AirwaysLHR-SINMay 2024
Qantas lounge was crowded. try other One World lounges
Verified travelerFlew with Singapore AirlinesLHR-SINFeb 2024
Flew with Singapore Airlines great experience and efficient transfer to next flight at Changi . Premium economy was worth the extra giving easier boarding and comfortable seats with more room.

FAQs - booking Southeast Asia flights

  • What airport should I fly to visit Mount Bromo in Indonesia?

    If you want to marvel this spectacular mountainscape of Bromo you need to fly into the Surabaya Juanda International Airport (SUB). There are no direct flights from London, but you can stop over at multiple destinations. From the airport you can either book with a travel guide or drive the 2-3 hour journey on the Surabaya-Pasuruan-Wonokitri-Mt Bromo route.

  • Can I sleep at the Noi Bai International Airport (HAN)?

    You can sleep overnight at the Noi Bai International Airport in their special sleeping pods for passengers who want a quick rest after a long flight. The pods are private and offer free Wi-Fi, comfy mattresses, and refreshments, and are located within the airport terminals.

  • Which airport do I fly into to visit Mui Ne?

    Southeast Asias best new beach destination is only a few hours from Ho Chi Minh City. You would need to fly into the Vietnam Tan Son Nhat International Airport (SGN) in the city and then find the best transport for your next step of the journey. You can hire a travel guide or your own car rental for this leg of the journey.

  • Which airport should I fly into to visit the Buddhist monuments of Bagan?

    You need to fly into Nyaung-U Airport (NYU) to access the Bagan Monuments. The flight will need a layover. This is the main airport that serves as the aerial gateway to the Bagan region.  

  • How does KAYAK find such low prices on flights from London to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Southeast Asia

  • If you are flying from London to Southeast Asia, you will fly from one of the four main London Airports Heathrow (LGW), London City (LCY), and London Stansted (STN) or Gatwick (GTW). As the flight is a long-haul flight you should arrive at the airport 3 hours in advance and you can choose to make use of one of the many Business and VIP Lounges available to you. This is a good idea for some relaxation time and a good meal to prepare you for your onward journey.
  • If your journey from London stops at Singapore Airport Changi (SIN), you can make use of the BeRelax Spa to recover from your long flight. The spa is found at the airport and offers essential wellness and relaxation services like massages, facials and much more. This is the perfect after-flight treat to prepare you for your onward journey.
  • Depending on what destination in Southeast Asia you are flying to, there are multiple routes, stopovers and options, and if you are flying to one of the more remote islands you will probably need to have a connecting flight to the venue. The most popular airlines connecting visitors to Southeast Asia are Singapore Airlines, Etihad, Austrian Airlines, Malaysia Airlines and more. It all depends on your route and destination so click through KAYAK to find your best route.
  • If you are flying into Bangkok (BKK) and want to get a good night's rest after your long-haul flight there is a hotel at the airport grounds. The Novotel Bangkok Airport Hotel is connected to the airport terminal by a walkway and is easily accessible. You can also choose to use the hotel for a business meeting.
  • If you are flying from London into Kuala Lumpur International Airport (KUL), this is one of Southeast Asia’s busiest aviation hubs. After a long-haul flight you might need to relax and have a smoke, so you can luckily find designated smoking lounges at the Satellite Building located at the Mezzanine level 2, South Zone next to the China Air’s Lounge and North Zone next to Singapore Airlines Lounge.
See more tips

Everything you need to know for your flight to Southeast Asia

Cabin class types available on flights to London

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.