£230 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 30/1. 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.
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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 41,299,237 times on KAYAK, and here's why:

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Best Southeast Asia Flight Deals from London

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

Bangkok
Bangkok1 stop£390
Manila
Manila2 stops£350
Denpasar
Denpasar1 stop£408
Kuala Lumpur
Kuala Lumpur1 stop£438
Singapore
Singapore1 stop£356
Phuket City
Phuket City1 stop£422
Ho Chi Minh City
Ho Chi Minh City2 stops£358
Hanoi
Hanoi1 stop£404
Koh Samui
Koh Samui2 stops£691
Cebu City
Cebu City2 stops£476
Chiang Mai
Chiang Mai1 stop£446
Krabi
Krabi2 stops£591
Da Nang
Da Nang2 stops£461
Phnom Penh
Phnom Penh2 stops£422
Penang
Penang1 stop£480
Angeles City
Angeles City2 stops£454
Langkawi
Langkawi3 stops£578
Kota Kinabalu
Kota Kinabalu1 stop£501

Good to know - Cheap tickets from London to Southeast Asia

Low season

June

High season

December

Cheapest flight

£230
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (32% more expensive on average)
Flight from London Gatwick Airport to Bangkok Suvarnabhumi Airport

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 a cheap flight from London to Southeast Asia

  • Book at least 1 week before departure in order to get a below-average price for flights from London to Southeast Asia.
  • High season is considered to be January, November and December. The cheapest month to fly from London to Southeast Asia is May.
  • 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

 
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 3412 reviews
7.9Food
8.2Entertainment
8.3Crew
8.1Boarding
8.0Comfort
Airline reviews

Poor flight aircraft very old Crew was friendly 1 person though

2.0 MediocreAlaa, Dec 2024ALG - DXB
Read more Emirates reviews

Poor flight aircraft very old Crew was friendly 1 person though

everything was great. I don't use on-board entertainment at all (I just read or sleep), but I appreciate that I couldn't hear anyone else's!

Delayed, Bad American style food (not tasty, horrible cheese for a flight to France). Incompetent cabin crew (I asked how to connect by cable my headphones and the flight attendant suggested me Bluetooth which is not available). Good space

Loved everything! This flight had premium economy and I didn't see an option to upgraded to premium economy OR buy premium economy tickets. How come?

The ground staff on Islamabad is horrible. The on board services are excellent.

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

Nothing, all that I know is that I will never travel with Emirates again Qatar is were I belong. You guys should send someone over to experience what true acomadation is, Emirates has the worst food that I ever eat on any airline ,even jetblue has better food and snacks that curry Indian garbage you guys serve just make people sick.

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

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

Overall, very good. The food was better than expected with the exception of the pork and potatoes dinner at the end of the flight. My family all selected that dish and did not set it. I tried a bite also and it was honestly terrible. Also, it would be helpful to know when the snacks in the back of the plane are available.

I was a member of Krisflyer for ten years, but my last flight to Tokyo was a disaster. I had to stand in line for four hours before check-in because they were late opening the counter, and there were more than 50 people behind me. The plane was extremely small, and the food could have been better. When I dropped off my stroller before boarding the plane, I expected to receive it upon exiting for my transfer. However, they returned the stroller to the checked baggage because they said I was late getting off the plane. Of course, I was late; they assigned me a seat at the back of the aircraft, and I was traveling with a baby! The worst part was when I arrived in Jakarta. They damaged my stroller and refused to approve my claim, so I had to pay for stroller rental because of the damage they caused. I don’t know what happened to Singapore Airlines, but I felt like I was flying with a budget airline.

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.

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.

Overall good. Food choice in business class is a concern as same dishes on every flight for months. Crew is great and seats on this sector were fine . They need to have more variety in dining

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.

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.

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.

It was a long flight but overall a good one. The one thing that I would comment on is that there is a real problem with disposable plastic products when it comes to the meal service. It would be great for Qatar Airways to find ways to make its meal service more circular and reduce the immense amount of waste.

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 😊 🙏 😀 😉 👍

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

The flight was delayed hours and most flights from CS are always delayed. Plane was efficient and got us home but not the best food and no entertainment system at all.

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 and service are good. Bathroom was lack of lotions and cleaning. That should be improved.

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

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.
13/3Thu
1 stopAir India
28h 15mLHR-SIN
31/3Mon
1 stopAir India
30h 10mSIN-LHR
£356
21/3Fri
1 stopAir India
28h 45mLHR-SIN
5/4Sat
1 stopAir India
30h 10mSIN-LHR
£378
21/2Fri
1 stopAir China
30h 00mLGW-BKK
7/3Fri
1 stopAir China
36h 15mBKK-LGW
£390
15/1Wed
2 stopsAir China
21h 15mLHR-MNL
17/2Mon
2 stopsAir China
22h 55mMNL-LHR
£396
23/2Sun
1 stopChina Southern
16h 30mLHR-MNL
9/3Sun
1 stopChina Southern
17h 55mMNL-LHR
£408
26/2Wed
1 stopChina Southern
25h 40mLHR-DPS
5/3Wed
1 stopChina Southern
25h 45mDPS-LHR
£408
14/1Tue
1 stopChina Eastern
18h 50mLGW-BKK
21/1Tue
1 stopChina Eastern
23h 55mBKK-LGW
£443
15/1Wed
1 stopChina Eastern
18h 50mLGW-BKK
14/2Fri
1 stopChina Eastern
19h 05mBKK-LGW
£445
23/3Sun
1 stopEmirates
14h 50mSTN-BKK
30/4Wed
1 stopEmirates
15h 15mBKK-STN
£609
13/3Thu
1 stopEmirates
14h 50mSTN-BKK
11/6Wed
1 stopEmirates
14h 50mBKK-STN
£610

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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.
30/1Thu
2 stops
40h 15mLGW-BKK
£230
27/4Sun
2 stops
25h 00mLGW-BKK
£234
20/1Mon
2 stopsAir China
25h 40mLHR-BKK
£274
21/1Tue
2 stopsAir China
25h 40mLHR-BKK
£285
2/3Sun
1 stopSingapore Airlines
27h 35mLGW-BKK
£311
9/1Thu
1 stopChina Southern
31h 05mLGW-BKK
£325
14/1Tue
1 stopChina Southern
31h 55mLHR-BKK
£345
28/2Fri
1 stopSingapore Airlines
16h 05mLGW-BKK
£353
4/3Tue
1 stopEmirates
28h 20mSTN-BKK
£364
4/3Tue
1 stopEmirates
28h 20mSTN-BKK
£364

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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.
23/12Mon
multi-stopOman Air
27h 40mLHR-BKK
30/12Mon
multi-stopOman Air
16h 10mBKK-LHR
£663
21/12Sat
multi-stopOman Air
14h 40mLHR-BKK
4/1Sat
multi-stopOman Air
16h 10mBKK-LHR
£696
23/12Mon
multi-stopAir China
18h 35mLHR-KUL
5/1Sun
multi-stopAir China
25h 30mKUL-LHR
£840
21/12Sat
multi-stopAir China
17h 25mLHR-BKK
3/1Fri
multi-stopAir China
21h 25mBKK-LHR
£850
22/12Sun
multi-stopChina Southern
33h 40mLHR-KUL
16/1Thu
multi-stopChina Southern
32h 05mKUL-LHR
£1,010
22/12Sun
multi-stopChina Southern
34h 35mLHR-HKT
15/1Wed
multi-stopChina Southern
32h 40mHKT-LHR
£1,045
22/12Sun
multi-stopQatar Airways
17h 10mLHR-DPS
29/12Sun
multi-stopQatar Airways
18h 05mDPS-LHR
£1,179
22/12Sun
multi-stopQatar Airways
22h 40mLHR-DPS
25/12Wed
multi-stopQatar Airways
18h 55mDPS-LHR
£1,197
23/12Mon
multi-stopEmirates
15h 00mSTN-BKK
30/12Mon
multi-stopEmirates
15h 15mBKK-STN
£1,291
23/12Mon
multi-stopEmirates
23h 20mLHR-DPS
29/12Sun
multi-stopEmirates
19h 35mDPS-LHR
£1,492

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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.

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