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£210 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 20/11. 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
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Search 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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Southeast Asia.
In the last 7 days, travellers have searched 43,377,091 times on KAYAK, and here's why:

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Best Southeast Asia Flight Deals

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

Bangkok
Bangkok1 stop£452
Manila
Manila1 stop£389
Denpasar
Denpasar1 stop£418
Kuala Lumpur
Kuala Lumpur1 stop£374
Singapore
Singapore1 stop£500
Phuket City
Phuket City1 stop£462
Ho Chi Minh City
Ho Chi Minh City1 stop£402
Hanoi
Hanoi1 stop£407
Koh Samui
Koh Samui3 stops£655
Cebu City
Cebu City1 stop£434
Chiang Mai
Chiang Mai1 stop£487
Krabi
Krabi2 stops£751
Phnom Penh
Phnom Penh1 stop£426
Da Nang
Da Nang2 stops£557
Penang
Penang1 stop£431
Angeles City
Angeles City2 stops£617
Langkawi
Langkawi2 stops£479
Boracay
Boracay2 stops£719

Good to know - Cheap tickets from London to Southeast Asia

Low season

September

High season

December

Cheapest flight

£210
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (31% more expensive on average)
Flight from London Stansted 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 a cheap flight from London 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

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 
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.

Top 5 airlines serving from London to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from London to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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.
8.1
EmiratesOverall score based on 3540 reviews
8.0Comfort
7.9Food
8.2Entertainment
8.3Crew
8.1Boarding
Airline reviews

Airline did not have enough vegetarian meals for all guests, and crew were not adequately trained to handle this.

4.0 OkayAnonymous, Oct 2024LAX - DXB
Read more Emirates reviews

Airline did not have enough vegetarian meals for all guests, and crew were not adequately trained to handle this.

The flight was nice and on time. The comfort can be slightly better in business class

Usually Emirates is my go to Airline on this flight: 1) All the crew seemed very inexperienced 2) Meal service for 7 hour flight was very slow - slowest I have ever experienced. 3) ONE flight attendant in economy serviced everyone on the left aisle in 2 cabins - thats 6 passengers per row (half the row) and over 30 rows of passengers. The others were no where to be seen. Thats pouring drinks and serving trays and offering options of meal and drinks for 180 passengers. by herself. In most flights it's 2 attendants per cart servicing one section. 4) Meal was not served till 3.5 hours later for some passengers at the back. 5) As a result only one meal was served even though the menu explicitly said 2. 6) Everyone was thirsty and starving 7) There were 2 loud crashes at the back galley 8) One passenger was out cold due to the sleeping tablets he had taken. The Flight attendants in their inexperience chose to try wake him up and create a situation where passengers were panicking and the passenger finally woke up and was annoyed. 9) They chose to wake up every sleeping passenger to feed them rather than move past the sleeping passengers. Do they know how hard it is to actually sleep on a plane?

Fresh energetic and friendly crew, great food, brand new plane and non stop entertainment

Seats are not as easy to move as you would hope in premium econo Y

Emirates is good airlines. But there plane seats were very small and congested. Need to little good and big seats in economy class.

When you buy emirates you don’t expect low cost. Boarding by bus. Seat will not incline. Line before emergency exit. Eating tray hits belly (and I didn’t grow lately). Entertainment on demand by payment.

The experience of the flight. The food options have definitely gone down

The food was pretty good and the crew were excellent. It would have been excellent all round but for screaming children. Six hours at least of a 10 hr flight. Mostly 1 child clearly on the spectrum and probably ADHD but I really felt for the parents and grandparents who were obviously struggling and doing the best they could under the circumstances. No reflection on the airline of course and we all need to be more tolerant with these challenges . Slept for 15 hrs when I got home.

The boarding experience was worst ever. Single aerobridge used for boarding and deboarding which led to lot of chaos. Food options were not great. First flight delayed by more than 3 hours which led to missing of the next flight we were stuck at Dubai airport by more than 6 hours

The crew have great customer service but their economy seating isn’t the most comfortable for a 220lbs+ guy and the food wasn’t bad, but wasn’t exceptional, either.

Food option Hindu veg to Hindu non veg request was unheard

This flight was 16 hours and they made it very tolerable. Seats were comfortable and the staff very accommodating. I had plenty of inflight entertainment. Food was very good.

Service excellent would chose Singapore airlines as my first choice

The staff were amazing and very kind. The seats recline a little too far back and are up close when sitting behind.

My groups frequent flyer star allianceUnited airline miles was not accepted. The Singapore premium economy bag had to be requested, it was very lacking- no toothbrush. I paid more than double than economy but could only use the bathrooms sharing with economy which was hardly available and had to wait in line. Is the 2X $ worth it just for a larger seat???? It is questionable. Seats were not that comfortable. My husband’s seat had white stains on it- had to wipe it down. Our headphones did not have covers on it. Food- way too much.

The booking experience was bad. Our six character booking ID number disappeared the day before the flight, We could not find out what happened or what was the status of our flight, scheduled for the next day. We finally found the right number to contact Singapore Airlines on the matter (not easy). The Singapore agent worked through the issue in a little over thirty minutes on the phone, the day before the flight. That was great. I'm very happy with Singapore Airlines and their performance. Contact with a competent person on the matter was near impossible. It seems no one in business these days wants to deal with customers once they've pocketed the money. There were resellers, including Kayak, involved in the chain. When we finally got through to Underpricer, we did get a return call that could have proved helpful. But by that time the matter had been resolved by the Singapore agent. Majestic Vacations, the reseller who received the payment was less than worthless. That's just a fast buck operation. Ugh.

Fantastic patience when one of the passengers behind me was an absolute horrible, horrible person and the girls just kept smiling and doing their job with patience and kindness. Well, done to the crew.

Could not really fault anything. We had a really short time between flights (about 45 mins), and had to get across the other side of the terminal. But we made it and crew were helpful. Food was good and service for the kids was great.

On time, friendly staff and decent food. Would definitely recommend.

Not good - chair back could not move back for premium economy. Not worth the price

The back of the chair - premium economy could not move back - not worth the price

It was okay. Boarding the staff made you feel rushed like we were late or something

It was great. The staff were so nice and helpful the food was great and they always made sure I was okay. As a foreigner I was worried about the language barrier but it was absolutely no issues. I highly recommend

Crew: Everybody was polite. People just need to get efficient and less reworking things. Entertainment: Could have move movies and games. The “music” section is a joke, only ONE available. Food: The food provided on the flights boarding in china needs a serious reworking. Too much oil, bad for your stomach, tastes too artificial and the eggs were a giant mass of green dough.

We were diverted to Chengdu, because of bad weather and finally made it to Chong King about 7 hours later

No wheelchair service at all ( I did request that service and also purchased the priority assistant bundle) , what a waste of money

Never got the wheelchair service when my parents arrived at LA . My mom was 74 , also my dad was 84 years old, both don’t speak English. I double checked with the front desk at Phoenix airport, making sure that they will be taking care of.

Food was terrible. Fish was equal to a sausage and scrumbled eggs were terribly green with a quite weird fllavour. Everybody with me hated all options. The best food was the bread with butter.

We bought an upgrade to Business Class at the airport but did not realise that it was not the regular Business Class. The 787 Dreamliner was very dated with the seats not as comfortable as other airlines and some things were almost coming off. We were then told that because it was an upgrade at the airport, we get to sit in the BC cabin but will be served economy class food. So when everyone else got served in china ware, we were given the tray you got in economy class. The wifi does not work. It only connects to watch movies (which is the same as what you find in the ICE) but the internet does not work. The cabin crew while were friendly, were not responsive. Overall, I will never fly China Southern again.

There was not enough food for everybody. Some dishes were missing.

riding in first class, you don't expect every time you order your dinner or breakfast that the first thing the stewardess says is Let me see if we have any left. Also, the food selection was not great: 3 of 4 entrees had mushrooms and I dont eat mushrooms, the 4th item was 'let me see if we have any left' and this was within 30 mins of entering the flight! Same experience level, it didn't feel first class this round.

Qatar Airways in-flight first/business class service is superior to any US airline; excellent meals are served on short haul flights such as between DXB and DOH.

Was downgraded from business to economy due to a faulty seat in business class. However when I boarded the plane there were no less than 5 free business class seats. Will never fly Qatar Airways again

Wasn’t allowed to continue with the purchased tickets because I hadn’t been able to go on the first scheduled leg.

The rows of seats in economy class are seriously close to one another making eating and resting just about impossible - there is hardly any legroom. Anyone larger than average size would have an incredibly uncomfortable flight. I had to basically share my seat with the lady passenger next to me as she was too big to fit into her allotted seat.

Being a platinum member, no attention given. No towel or tissue provided.

Food was good, attendants were friendly. Seats were not comfortable. Did not receive any amenities such as eyemask or earplugs that would have helped sleep. Additionally a large group of passengers boarded very late into boarding and were a disruption for almost the whole flight. Flight attendants did their best but the kids were making so much noise, kicking seats, and half the time no adult was sat with them so they weren’t being managed.

Qatar airways from Doha to guangzhau was excellent big bird Boeing 777 more room and smoothly flight, I Love it

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.

Food & service very good next I will pick up again

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced.

Everything was not satisfactory - the flight was delayed, staffs were ok but they didn't speak English well. I am from east Asia (not Chinese) and they didn't care enough to remember that I wasn't Chinese but persistently spoke chinese to me. The flight announcement in english wasn't clear to understand.

I wish I had been able to choose a vegetarian meal. Crew friendly and helpful. Seat was ok. All quite efficient and pleasant. Would recommend for inner China travel for sure.

The flight is not bad, but the Business Lounge is not big enough for the quantity of people they accept and there is a limited options for food and beverages.

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

We bought premium Economy, thinking it would be more comfortable, but the seat is so narrow ,that my legs and feet are swollen , I can't wear shoes !

The flight was delayed for almost 5 hours, but I understand that it was not up to the company, however how they could handle the situation better, they never apologized for that delay, moreover despite passengers being there for 7 hours only thing they did was to give a bowl of instant noodles, afterwards on the plane tiny snacks, people were there starting from lunch time and we’ve arrived to destination at almost midnight

Flight was delayed for 2 hours for no reason, then we spent almost an hour after boarding because of the weather conditions. If we left on time we could avoid that 😾

Book cheap flights from London to Southeast Asia

Cheapest flights to Southeast Asia from London found in 2024 and 2025

Recent return flight deals

 
These are the cheapest return flights from London to Southeast Asia found on KAYAK in the last 72 hours.
14/11Thu
1 stopChina Eastern
27h 50mLHR-KUL
28/11Thu
1 stopChina Eastern
25h 50mKUL-LHR
£374
14/11Thu
1 stopChina Eastern
27h 50mLHR-KUL
28/11Thu
1 stopChina Eastern
25h 50mKUL-LHR
£376
18/11Mon
1 stopChina Eastern
41h 15mLHR-KUL
28/11Thu
1 stopChina Eastern
38h 50mKUL-LHR
£377
16/4Wed
1 stopAir China
28h 45mLGW-MNL
9/5Fri
1 stopAir China
31h 10mMNL-LGW
£402
25/4Fri
1 stopAir China
28h 45mLGW-MNL
15/5Thu
1 stopAir China
31h 10mMNL-LGW
£404
6/3Thu
directSingapore Airlines
12h 55mLHR-SIN
19/3Wed
directSingapore Airlines
14h 15mSIN-LHR
£546
10/2Mon
1 stopQatar Airways
16h 50mLHR-BKK
11/3Tue
1 stopQatar Airways
16h 50mBKK-LHR
£559
6/3Thu
directSingapore Airlines
12h 55mLHR-SIN
20/3Thu
directSingapore Airlines
14h 10mSIN-LHR
£561
3/3Mon
1 stopEmirates
14h 50mSTN-BKK
16/3Sun
1 stopEmirates
15h 55mBKK-STN
£596
24/2Mon
1 stopEmirates
15h 25mSTN-BKK
23/3Sun
1 stopEmirates
17h 05mBKK-STN
£599

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Southeast Asia found on KAYAK in the last 72 hours.
20/11Wed
1 stop
31h 35mSTN-BKK
£210
22/11Fri
1 stop
33h 25mLGW-BKK
£227
1/12Sun
1 stopChina Southern
33h 40mLHR-KUL
£278
19/1Sun
1 stopChina Southern
30h 35mLHR-KUL
£281
24/11Sun
1 stopAir China
30h 00mLGW-BKK
£291
11/11Mon
1 stopAir China
30h 00mLGW-BKK
£300
25/11Mon
1 stopSingapore Airlines
16h 05mLGW-BKK
£330
24/11Sun
1 stopSingapore Airlines
16h 05mLGW-BKK
£346
4/3Tue
1 stopEmirates
15h 50mSTN-BKK
£360
4/3Tue
1 stopEmirates
14h 55mLGW-BKK
£365

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Last minute flights from London to Southeast Asia

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from London to Southeast Asia that are departing in the next 10 days.
7/11Thu
multi-stopChina Eastern
27h 50mLHR-KUL
19/11Tue
multi-stopChina Eastern
20h 00mKUL-LHR
£376
6/11Wed
multi-stopChina Eastern
27h 50mLHR-KUL
19/11Tue
multi-stopChina Eastern
20h 00mKUL-LHR
£377
6/11Wed
multi-stopAir China
23h 30mLHR-BKK
17/11Sun
multi-stopAir China
27h 25mBKK-LHR
£423
6/11Wed
multi-stopAir China
17h 25mLHR-BKK
17/11Sun
multi-stopAir China
27h 25mBKK-LHR
£428
5/11Tue
multi-stopChina Southern
35h 05mLHR-MNL
12/11Tue
multi-stopChina Southern
38h 15mMNL-LHR
£435
6/11Wed
multi-stopChina Southern
29h 20mLHR-MNL
13/11Wed
multi-stopChina Southern
17h 55mMNL-LHR
£438
8/11Fri
multi-stopQatar Airways
20h 40mLHR-KUL
3/12Tue
multi-stopQatar Airways
23h 15mKUL-LHR
£655
8/11Fri
multi-stopQatar Airways
20h 40mLHR-KUL
2/12Mon
multi-stopQatar Airways
18h 20mKUL-LHR
£679
9/11Sat
multi-stopEmirates
21h 00mSTN-BKK
11/11Mon
multi-stopEmirates
18h 00mBKK-STN
£709
9/11Sat
multi-stopEmirates
14h 50mSTN-BKK
12/11Tue
multi-stopEmirates
33h 35mBKK-STN
£725

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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.