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Find cheap flights from London to Southeast Asia from $536

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 28/8. 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
Thu 6/6
Thu 13/6

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Best Southeast Asia Flight Deals

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

Denpasar
Denpasar1 stop$960
Singapore
Singapore1 stop$925
Phuket City
Phuket City1 stop$898

Good to know

Low season

September

High season

December

Cheapest flight

$536
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (28% more expensive on average)
Flight from London Heathrow Airport to Bangkok

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 to Southeast Asia from London is likely to change within 7 days, so travelers 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 to Southeast Asia with an airline and back to London 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 to Southeast Asia from London 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

Top 5 airlines serving from London to Southeast Asia

 
Need help choosing which airline to fly with from London to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1464 reviews
8.4Boarding
8.7Crew
7.8Food
8.2Entertainment
8.1Comfort
Airline reviews

My experience with Scoot is very good. Will have no issue flying with Scoot again.

8.0 ExcellentAnonymous, Apr 2024SIN - DPS
Read more about Singapore Airlines reviews

My experience with Scoot is very good. Will have no issue flying with Scoot again.

Good flight. Fiod was ready a bit late hence a hurry to finish before landing. Excellent crew and service

Awesome as always. I wish though the cabin for premium was upgraded.... Same old sane old :(

In general good, but the machine seems to be long in operation and some functions were restricted as e. g. Adjusting of seats.

Every thing was fine. Some ild classical Hindi movies should be add

The singapore airline now compared before covid, I like the service before covid. SQ was the best of all airlines but now I am going to look for different airline if I am travelling in asia.

Perfect experience from boarding through to leaving the flight, comfortable and personalised service from all staff, highly recommended

They are great with every aspect of customer service. Helped my elderly father and aided him with using the restroom.

I did not like anything. Flight experience was bad overall.

The overall operation needs to be improved. The in-flight services took forever and sometimes ran out of options.

The food on this flight was just terrible. I have a wheat allergy so when booking I ask for gluten free options. The food given was inedible. The bread rolls were rock hard. Once board I was given one and the only thing I could do was eat the chicken slice and piece of tomato on it. Also given was 4 small cubes of fruit, 2 watermelon and 2 pineapple and a bottle of water. My husband had a regular meal and found his very average. Then the evening meal was also disappointing! Some dried out fish with spinach and 3 sticks of dry white sweet potato. No sauce …. 😳 again, the same fruit and water. The passengers had to wait a long time for the dinner food to be served. My husband just wanted to eat and go to sleep so he was a bit annoyed about that. We got off the plane and I was feeling quite hangry. Not enough food or a good eating experience. Emirates used to be a flight we looked forward to… now we are considering looking at other companies for the future.

Flights were both delayed. No luggage on arrival for the whole plane and no contact since submitting a PIR.

Worst ever. No assistance and communication from Emirates crew. No visibility of when the flight is flying. Couldn’t understand if we can go to lounge to take rest. Emirates system at a certain point said flight is not operating and suggested to take the next flight and in few minutes it suddenly opened the gate for boarding. unsupportive and rude crew. Worst experience ever. Flight was delayed by 5 hours so need the compensation for that.

Not that good The crew in the plane were rim professional & almost lost in their work distribution

No entertainment u less you pay. Wish there were some free movies

Didn’t like it at all. Cabin crew unfriendly. Very bad experience.

Absolutely terrible delays for 3 hours changed seats after we paid an upgrade on both legs. It appears it’s up to us to request a refund after they down graded our seat. Never again !!

They had superb boarding (started an hour before flight time). Timely pushback from them gate and an early arrival. Flight and service was very comfortable. I wanted to move my flight to an earlier one, only thing was there was no one at emirates in Heathrow to help. Had to call the call the center and pay to change. There were ample seats on the flight though

Overall good but one thing I didn’t understand is why they didn’t allow me to pick my own seat.

Great flight. Comfortable seats, courteous service, and excellent selection for entertainment.

Just happy I flew Qatar Airways awesome no wonder they are #1 in the world right now! The food was just delicious, very courteous, professional crew.

I staff or crew they were very friendly and humbly, they done theirs service very well, I appreciate them and thank you to the company or Qatar 🇶🇦 Government for providing as good service in their flight ,once again, thank you 😊 🙏 😀 😉 👍

It was pretty good overall. I just wish the crew didn't have to interrupt you every five seconds to ask you if you wanted anything, I mean that's what the help button is for. When someone is tired and sleepy and still getting their bearings, turning on DND button is maybe not the first thing on their mind.

Crews are very rude and unhelpful. Cramped seats in economy. Foods are useless

Ultimate customer care humble and excellent service oriented crew , perfect timing maintained by the crew . My profound appreciation.

Okay not so good or great. The flight operated by Indigo is worst from boarding to luggage handling and food. Damaged one luggage and delayed another luggage. Still did not get it, since 2 days.

I would advice everybody not to fly by Indigo, no entertainment in flight, rude behavior of staff, worst experience of my life

The flight from Doha to Mumbai with Indigo was worst in my whole life, I had booked tickets with Qatar, but still we had to fly by Indigo , worst flight

They ran out of some of the popular food items. 😞

Was unable to check in via app or website with supplied booking code (something to do with flight being operated by a partner airline, although the code didn’t work on the partner’s website either) Specified a vegetarian meal during booking, but that somehow wasn’t captured in airline’s system By the time flight crew got to my row, now vegetarian food was available. Had nothing to eat on flight from Philadelphia to Doha! Flight attendant was completely unconcerned and actively apathetic to the situation

An overnight Doha to KL. Great sleep, good service and tasty food in business class

The cabin was quite noisy as there were lots of children travelling for the school holidays. Found the selection of movies limited.

Delayed, not enough information. Had to ask for refreshments, crew could have been more proactive

The best so far coz this time it was all male steward on the economy cluster. They were polite, efficient & genuinely courteous. They do not judge you when you ask for more food & peanuts.

My first course flight (Aor-Kul) was cancelled in the morning, and they asked me to board the night flight hence I need to transit overnight for the 2nd flight (Kul-Myy) that supposed to be on the same day. The overnight stay was not provided, (I'm traveling with my spouse, a daughter (5 y.o.) and an infant (2 months old). Hence I booked Sama Sama Hotel at my own expense (fortunately using my enrich miles points). Other than this issue, all services is good.

My experience with the flight was okay. My experience checking in was absolutely terrible. I was told I needed to change my e-ticket number to check in because I missed my flight in PDX. Even when shown the itinerary, they didn't budge and sent me to KLM across the airport. KLM wasn't open until 8pm and my flight was at 7:30pm. Nobody made accommodations in any way to get me to KUL. To add insult to injury, they rescheduled my flight to the very next day, creating a very long layover and did not offer any hotel stay. After this, even worse, I found out later they delayed the first 7:30pm flight to 9:10pm. Meaning, I could have still boarded but they refused to even try to get me on the plane. As a result, I missed a day of work and lost pay for the day. Also, when I went to get my luggage, it wasn't there. It was STILL in Singapore. They had from 5:30pm to 5am to get my luggage onto the plane and they still couldn't get that right. This is the worst experience I've had flying anywhere in the past decade I've been travelling.

Orange juice change to mineral water . Should keep the orange juice.

Entertainment system was too old, crew were unorganised during boarding

No recognition for one World Emerald member. Business class seat has flat bed

No recognition for one World Emerald member. I got row 1 in business class and it was pathetic. No leg space, cramped space, less recline

My luggage never arrived to Zurich. They can't confirm when it will arrive

Late again. 3 out of 4 late. One cancelled flight and one lost bag.

Charged an extra 65 pounds for overweight suitcase, Not told how much overweight but had no choice but to pay the price. Compare to Delta Airlines where I flew internationally a few days before with this suitcase and no extra charge by Delta. Comfort was horrible. I am just under 6 feet tall, and good that the flight was only 1 1/2 hours, because my knees were in the seat back in front of me the whole flight. I felt that my knees were part way up to my chest. No reason to have the seats that close. I will say to the positive was the flight crew, very friendly and efficient.

The flight was delayed as they were waiting on catering. Catering. Was eventually delivered but they still had no food. No meals for us in business class - just a bag of nuts.

Our luggage is missing. We are at the Hotel Gran Via in Barcelona

Air hostess delayed providing food and then pulled away the tray before i finished eating

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

The flight was on time and the crew very professional. Everything went as expected and I will use BA again for this trip.

We paid to have overhead carry-on baggage. When we got to the gate we were told that our carry on bags would need to be checked and go below because the flight was full. Notably we were nowhere near the last people to board and about 30 other passengers also had to check their carry-on bags. Other than that the flight was fine.

Very bad plain although I paid A business class ticket I was stuck in a stiff fixed seat without any entertainment or Wi Fi for 5 hours I will never ever book a flight on British airline.

Book cheap flights from London to Southeast Asia

Recent return flight deals

8/6Sat
1 stopShenzhen Airlines
38h 40mLHR-KUL
20/6Thu
1 stopShenzhen Airlines
30h 15mKUL-LHR
$894
8/6Sat
1 stopShenzhen Airlines
22h 15mLHR-KUL
23/6Sun
1 stopShenzhen Airlines
30h 05mKUL-LHR
$895
19/5Sun
1 stopQatar Airways
14h 10mLHR-BKK
27/6Thu
1 stopQatar Airways
14h 55mBKK-LHR
$1,073
28/8Wed
1 stopQatar Airways
15h 15mLHR-BKK
27/9Fri
1 stopQatar Airways
16h 25mBKK-LHR
$1,076
3/11Sun
1 stopBritish Airways
15h 45mLHR-KUL
19/11Tue
directBritish Airways
14h 05mKUL-LHR
$1,105
3/11Sun
1 stopBritish Airways
15h 45mLHR-KUL
14/11Thu
directBritish Airways
14h 05mKUL-LHR
$1,108
8/9Sun
1 stopSingapore Airlines
16h 10mLHR-KUL
22/9Sun
1 stopSingapore Airlines
17h 00mKUL-LHR
$1,129
23/10Wed
1 stopSingapore Airlines
15h 05mLHR-KUL
10/11Sun
1 stopSingapore Airlines
16h 45mKUL-LHR
$1,140
22/10Tue
directMalaysia Airlines
13h 15mLHR-KUL
11/11Mon
directMalaysia Airlines
14h 05mKUL-LHR
$1,448
31/10Thu
directMalaysia Airlines
12h 50mLHR-KUL
22/11Fri
directMalaysia Airlines
14h 00mKUL-LHR
$1,449

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Recent one-way flight deals

28/8Wed
1 stop
16h 20mLHR-BKK
$536
3/6Mon
2 stops
28h 15mLTN-DPS
$593
16/6Sun
1 stopShenzhen Airlines
38h 20mLHR-BKK
$601
9/6Sun
1 stopBritish Airways
15h 30mLHR-BKK
$698
7/6Fri
1 stopBritish Airways
14h 45mLHR-BKK
$750
11/5Sat
1 stopSingapore Airlines
17h 00mLHR-DPS
$882
14/5Tue
directMalaysia Airlines
13h 15mLHR-KUL
$947
23/5Thu
directMalaysia Airlines
13h 15mLHR-KUL
$995
20/7Sat
1 stopQatar Airways
21h 55mLHR-KUL
$1,630
16/7Tue
1 stopQatar Airways
30h 30mLHR-DPS
$1,703

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Last minute flights from London to Southeast Asia

Last minute flight, train and bus deals

12/5Sun
multi-stopOman Air
15h 10mLHR-BKK
20/5Mon
multi-stopOman Air
28h 30mBKK-LHR
$1,024
12/5Sun
multi-stopOman Air
15h 10mLHR-BKK
23/5Thu
multi-stopOman Air
28h 30mBKK-LHR
$1,025
11/5Sat
multi-stopShenzhen Airlines
22h 15mLHR-KUL
23/5Thu
multi-stopShenzhen Airlines
30h 15mKUL-LHR
$1,055
12/5Sun
multi-stopQatar Airways
14h 10mLHR-BKK
6/6Thu
multi-stopQatar Airways
14h 55mBKK-LHR
$1,081
12/5Sun
multi-stopBritish Airways
15h 10mLHR-BKK
21/5Tue
multi-stopBritish Airways
18h 15mBKK-LHR
$1,182
9/5Thu
directMalaysia Airlines
13h 15mLHR-KUL
15/5Wed
directMalaysia Airlines
13h 45mKUL-LHR
$1,452
9/5Thu
directMalaysia Airlines
13h 15mLHR-KUL
22/5Wed
directMalaysia Airlines
13h 25mKUL-LHR
$1,487
12/5Sun
multi-stopBritish Airways
15h 25mLHR-KUL
24/5Fri
multi-stopBritish Airways
19h 25mKUL-LHR
$1,498
9/5Thu
directSingapore Airlines
13h 15mLHR-KUL
3/6Mon
multi-stopSingapore Airlines
15h 50mKUL-LHR
$1,901
8/5Wed
multi-stopSingapore Airlines
15h 50mLHR-KUL
28/5Tue
directSingapore Airlines
13h 45mKUL-LHR
$3,140

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Flights to Southeast Asia

Return flight deals:

Southeast Asia - London

Cabin classes:

$6,148
$282
$275
$21

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