£278 Find Cheap Flights 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 the United Kingdom to Southeast Asia departing on 21/4. 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
1 adult, Economy, 0 bags

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 for flights to Southeast Asia
These are the airlines KAYAK users have selected most often from within our search results for flights to Southeast Asia
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Flight Deals

Cheap Flights to Southeast Asia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Manila
Manila1 stop£490
Kuala Lumpur
Kuala Lumpur2 stops£523
Singapore
Singapore1 stop£492
Phuket City
Phuket City1 stop£475
Denpasar
Denpasar1 stop£522
Hanoi
Hanoi1 stop£392
Ho Chi Minh City
Ho Chi Minh City1 stop£465
Ko Samui
Ko Samui2 stops£648
Cebu City
Cebu City1 stop£523
Da Nang
Da Nang3 stops£637
Chiang Mai
Chiang Mai2 stops£436
Krabi
Krabi1 stop£561
Angeles City
Angeles City3 stops£712
Penang
Penang1 stop£595
Langkawi
Langkawi3 stops£528
Davao City
Davao City2 stops£647
Manila
Manila1 stop£490
Kuala Lumpur
Kuala Lumpur2 stops£523
Singapore
Singapore1 stop£492
Phuket City
Phuket City1 stop£475
Denpasar
Denpasar1 stop£522
Hanoi
Hanoi1 stop£392
Ho Chi Minh City
Ho Chi Minh City1 stop£465
Ko Samui
Ko Samui2 stops£648
Cebu City
Cebu City1 stop£523
Da Nang
Da Nang3 stops£637
Chiang Mai
Chiang Mai2 stops£436
Krabi
Krabi1 stop£561
Angeles City
Angeles City3 stops£712
Penang
Penang1 stop£595
Langkawi
Langkawi3 stops£528
Davao City
Davao City2 stops£647

Book Cheap Southeast Asia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Southeast Asia

Sat, 18 Apr - Fri, 29 May
China Eastern Logo
11:35 - 12:30
LGW
-
BKK
18h 55m
1 stop
China Eastern Logo
02:10 - 15:00
BKK
-
LGW
18h 50m
1 stop
£431China Eastern
Mon, 20 Apr - Tue, 5 May
Shenzhen Airlines Logo
22:05 - 02:15
LHR
-
BKK
22h 10m
1 stop
Shenzhen Airlines Logo
12:10 - 20:00
BKK
-
LHR
37h 50m
1 stop
£431Shenzhen Airlines
Mon, 20 Apr - Tue, 5 May
SAUDIA Logo
16:15 - 13:45
LHR
-
BKK
15h 30m
1 stop
SAUDIA Logo
15:25 - 07:30
BKK
-
LHR
22h 05m
1 stop
£433SAUDIA
Wed, 22 Apr - Sun, 10 May
Air China Logo
12:35 - 18:20
LGW
-
BKK
23h 45m
1 stop
Air China Logo
19:35 - 06:45
BKK
-
LGW
17h 10m
1 stop
£435Air China
Sun, 10 May - Fri, 15 May
Air China Logo
12:35 - 00:10
LGW
-
BKK
29h 35m
1 stop
Air China Logo
19:35 - 06:35
BKK
-
LGW
17h 00m
1 stop
£436Air China
Mon, 20 Apr - Thu, 30 Apr
SAUDIA Logo
16:15 - 13:45
LHR
-
BKK
15h 30m
1 stop
SAUDIA Logo
15:25 - 07:30
BKK
-
LHR
22h 05m
1 stop
£436SAUDIA
Tue, 21 Apr - Mon, 29 Jun
China Southern Logo
22:10 - 10:35
LHR
-
MNL
29h 25m
1 stop
China Southern Logo
03:45 - 19:20
MNL
-
LHR
22h 35m
1 stop
£490China Southern
Tue, 5 May - Thu, 4 Jun
China Southern Logo
22:10 - 02:25
LHR
-
MNL
21h 15m
1 stop
China Southern Logo
03:45 - 19:20
MNL
-
LHR
22h 35m
1 stop
£493China Southern
Tue, 2 Jun - Wed, 17 Jun
Etihad Airways Logo
09:20 - 06:15
MAN
-
BKK
14h 55m
1 stop
Etihad Airways Logo
15:05 - 06:55
BKK
-
MAN
21h 50m
1 stop
£525Etihad Airways
Mon, 20 Apr - Sun, 17 May
Etihad Airways Logo
14:30 - 11:50
MAN
-
BKK
15h 20m
1 stop
Etihad Airways Logo
21:00 - 06:55
BKK
-
MAN
15h 55m
1 stop
£526Etihad Airways
Booking Insights

KAYAK's insights & trends for flights to Southeast Asia

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

What is the cheapest flight to Southeast Asia?

These are the best return prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Southeast Asia from the United Kingdom found in the last 72 hours was to Bangkok Suvarnabhumi Airport, at £240 return. The most popular route is London Gatwick Airport (LGW) to Bangkok Suvarnabhumi Airport (BKK) and the cheapest return airline ticket found on this route in the last 72 hours was £240.

How much is a flight to Southeast Asia?

The average and cheapest price for all round-trip flights to Southeast Asia from each origin found by users searching on KAYAK in the last month.

A flight to Southeast Asia costs £682 on average. The cheapest price found on KAYAK in the last 2 weeks was £240 for the route Manchester (MAN) to Bangkok Suvarnabhumi Airport (BKK). The most popular routes on KAYAK are Manchester to Bangkok which costs £760 on average, and London to Bangkok, which costs £831 on average.

See prices from:

What is the cheapest month to fly from the United Kingdom to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from the United Kingdom 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 the United Kingdom to Southeast Asia is July, when tickets cost £682 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is £1,227 and £927 respectively.

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

The average price for all round-trip flights from the United Kingdom 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 at night, when retur flights cost £740 on average. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is £753.

How far in advance should I book a flight from the United Kingdom 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 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 a flight from the United Kingdom to Southeast Asia, you should book around 6 weeks before departure, which saves you about 9% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Which is the cheapest airport to fly into in Southeast Asia?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Southeast Asia is Bangkok Suvarnabhumi Airport (BKK), with an average flight price of £479.

Good to know - Cheap tickets to Southeast Asia

Low seasonSeptember
Cheapest flight£278
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (30% more expensive on average)
Flight from London Gatwick Airport to Bangkok Suvarnabhumi Airport

Flights to Southeast Asia: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew to Southeast Asia 
MartinFlew with Singapore Airlines
LHR
-
SIN
Jan 2025
It’s a long time sitting in that seat so sit on a cushion!
Verified travelerFlew with Qantas Airways
LHR
-
SIN
Sept 2024
Unless you’re flying Business or First Class, definitely take your own travel pillow - they make a difference.
OmarFlew with Qantas Airways
LHR
-
SIN
May 2024
Qantas lounge was crowded. try other One World lounges
Verified travelerFlew with Singapore Airlines
LHR
-
SIN
Feb 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

  • How does KAYAK find such low prices on flights from the United Kingdom 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 the United Kingdom to Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from the United Kingdom 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 the United Kingdom 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 the United Kingdom 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 the United Kingdom 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 the United Kingdom to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Southeast Asia?

    Based on KAYAK data, the cheapest day to fly to Southeast Asia is Sunday when return tickets can be as cheap as £769. On the other hand, the most expensive day to fly is Saturday, when return prices are £847 on average.

Top tips for finding cheap flights to Southeast Asia

  • Looking for cheap airfare to Southeast Asia? 25% of our users found round-trip tickets to Southeast Asia for the following prices or less: Cheap flights to Southeast Asia from London Gatwick £654, from Manchester £984, from London Heathrow £1,689
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Southeast Asia flight deals.

Reviews of the top 5 airlines flying to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Southeast Asia. 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 the United Kingdom 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 1471 reviews
8.0Entertainment
8.0Comfort
7.8Food
8.3Boarding
8.6Crew
Airline reviews

I felt that the whole experience went very smoothly. The aircraft was extremely clean and tidy on boarding. The cabin crew were beautifully turned out very, very efficient and were a credit to Singapore Airlines who are now my favourite carrier.

10.0 ExcellentAnonymous, Feb 2026
AKL - SIN
Read more Singapore Airlines reviews

I felt that the whole experience went very smoothly. The aircraft was extremely clean and tidy on boarding. The cabin crew were beautifully turned out very, very efficient and were a credit to Singapore Airlines who are now my favourite carrier.

Service was very good, food and entertainment systems were good

Excellent service. I pre-ordered gluten intolerant meal and they handle it with care. They served me my meal before other people's to avoid crossed contamination. Thank you 🙏

No frills airline with minimal leg room and no entertainment

I wish there was a little more leg room between the seats. The recline was good and seats overall were comfortable. I also didn’t like the 2-4-2 configuration.

The flight arrived on time. 2×2 seating meant no one needed to sit in the middle. This was a connectibf flight from Singapore and required going to 3 counters in different levels to check a golf bag

The crew was very courteous and professional. the flight is relatively clean and comfortable.

a completely full flight - felt quite carmped in, despite being on the window seat. Meal served could better. Surely different from pre-covid trips I used to take to and from Bangkok.

Service was top notch and the attention to passengers is great. Takeoff and landing was on schedule. Food selection is good

Airline should consider adding a small meal at the last leg of the flight, right now there is 7 hours of no meal break.

Everything was great except the boarding experience. After the check in, they "packed us" in a small area, very hot there. It would be nice to be aware of this, I'd wait on the outside area

Milan airport was bad experience. They should be more polite.

Child’s meal was great along with other nice touches for kids.

The journey was nice, all the crews were very good and services are excellent

Great flight - Clubhouse met our needs, and the staff provided good service. Boarding felt a little chaotic, but given the size of the aircraft, it's always going to be challenging. Whilst the crew were friendly, the number of passengers meant that we received our breakfast items, but had finished breakfast before we were served a drink. Lunch was much better organised, and throughout the flight, the crew were attentive. Found the seats and ICE to be excellent. Disembarkation was fine, and everything possible to expedite the process was being done.

Bathrooms were amazing and first class seat was very comfortable. Food was edible but not up to the standards of other first class meals on other airlines. But Caviar was amazing! So much caviar. Dom Perignon 2015 was room temperature. It would have been amazing if it was chilled down a bit more. Slippers were amazing and amenity kit requested was beautiful. Requested Pajamas never came so can’t tell you how nice they were. Loved the design of the seat and personal storage. Suite was much smaller than other airline’s first class and tv screen was tiny and remote difficult to use. I probably wouldn’t pay for this flight again.

Crew were very good. Food service was a little slow and disappointing not having on demand dining and only 3 options. Amenity kits and pyjamas were excellent.

We loved flying with Emirates in business class, the staff were fabulous, going above & beyond

The seating is spaced out nicely, The crew could have offer more drinks.

Overall I was quite pleased with the experience; the cleanliness; the polite and attentiveness of the cabin crew; and the delicious food options.

I wear hearing aids in both ears the infotainment system is hard to hear.

great experience. better than all other airlines flying this route.

I didn't have much experience with Cathay Pacific airlines because of delay and missed connections, the bulk of the trip was on Japan Airlines.

Cramped, hot and the plane was grubby. Also the plane was an hour late and it took an hour to get my luggage once I got to LAX.

Extensive delays, poor organization to board people, as it felt like chaos to get inside of the plane. No lines, everyone gathering together like a mayhem, very confusing. Passengers out of hand and rude, which is not the airlines fault. However, there should be rules, e.g., not letting one passenger take 2+ spots in the overhead bin.

Crew and food were great in-flight. We had a 2 hour delay, no communication, and just got left in a limbo. The crew arrived late and they were running checkouts on the plane (which is important, but why not doing it earlier?) Cathay did nothing to about the delay, and a lot of people missed their connection flights. I had to run and got stuck at checkpoint, which made my entire trip very unpleasant. Got to my gate 5 mins prior to them closing it.

Food , drink experience were great with Cathay. Crew service was excellent. Clean toilet and full snack bars always, pilot took of 26minutes later when boarding at Hong Kong with extra US customs check at gate 9 for US flight, but he managed to arrive only 2 minutes later from flight tracker. Smooth flight .

Great service from crews and delicious dishes, snacks and drinks. Egg tarts and local dimsum are delicious.

one hour transit not good. cathay pacific is not helpful at all

The flight was just ok, but the vendor made it exceptio ally bard to manage my own reservation and would not give me access. The blocked all of the one time pins to come to their email address which caused me.to go through them eceryrime to get seats see rhe reservation and even get wheelchair access for my sick 71 year old uncle. They only xommunicates via a bot which gave me incorrect info. I thought this was Kayak and not underprivileged. They ruined his trip, did not get him aisle seats and made it impossible to purchase extra leg room. It was a horrible experience. He was taken to hospital on arrival only to find he had blood clots and pnemonia while trying to navigate the airport. This vendor is very irresponsible and the airline could not access his info.

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

Charged extra amount for the baggage wait. Even it’s less than 23kgs. Those machines are showing wrong weight and they were charging money wantedly from everyone.

The boarding experience did not follow the Zones that were listed on the boarding passes. This was a two-level aircraft with many passengers. Because zones were not called out by the airline staff, there was simply a mob trying to board and it was not a pleasant experience.

All great, because I was given a seat with extra legroom on this part of my trip.

Qatar maybe considered one of the best ailines in the world but nowadays it is much of a muchness with the rest

Very efficient and professional staff. Food was good and so was entertainment selection.

As good as you can expect an economy flight from Europe to Australia to be. Nothing agains Qatar, just feels like every new generation of plane gets tighter.

Paid $10 for wifi for full flight duration and the wifi wasn’t available after initial 2 hours

Boarding from DOH to SYD the Business Class were pointed in a separate gate but no one there to receive us. Otherwise it was ok.

My flight was delayed. I was rebooked twice and even the second flight that was additional connection in London was delayed too, so I ended up spending more than 24 hours flying between four different countries and to be honest I’m not sure whether I ever want to use this airline again. My luggage is still delete. It’s been more than 48 hours now so to be honest, I’m not even sure how to describe the level of frustration I have.

Business class ticket should include lounge access and seat selection. The food quality and varieties should be more. It was surpirise that no dessert was offered.

Good one but just notice that you have to ask several time to get water or coffee .

Ethiad wanted to charge me $1100 for 2 checked bags on a ticket that was $550. Nother the airline or airfare assist was willing to help before arriving at the airport. All parties said it was the other responsibility to help. Never flying ethiad or using kayak again.

No entertainment except on app. No outlets working to charge. Good service

It was great! Kept the time. Provided what was promised

The crew could have been more friendly and could have offered to make the beds. Also, Ethiad should have more vegetarian food options.

The flight was over 1 hour late taking off ,when I arrived in Abu Dhabi ,I missed my connecting flight to Bangkok so I had to wait almost 6 hours for my flight arriving in Bangkok at 6:30 am ,So I missed a whole day of my vacation and my hotel room sat empty so I paid for hotel days that I was not there. In Abu Dhabi there was a woman that worked the desk at transfers that was so professional, courteous , helpful,and may I say absolutely beautiful .she got me food vouchers for my layover and was a very calming presence. Besides that I will never use Etihad again I will pay the Xtra money . I'm sure they won't read or see this but it's my "2 cents" I'll use an airline that respects me and my hard earned dollars

I booked and paid for a Business Class seat for myself and my wife. 4 hours before the flight i get a call saying the plane they sent doesn't have the correct layout to accommodate all the business class seats they sold me 3 months earlier at a premium of $1500 a ticket. So they have to bump me from Business to Economy and will give me a $400 credit (total of $800 for both seats) that I could turn in at Abu Dahbi for $400 in US cash. They then promised a row that we could have to ourselves and the arm rests would go up so we could spread out for each of us. My wife was taken care of but I was put in the exit row with the flight attendents set as part of the three...and the arm rest did not go up. When we got to Abu Dahbi, they would not exchange our credit for cash as promised. Very disappointed they took my money 3 months ago and refused to reimburse for the change in seats or follow the promises made.

Was so disappointing. Business class with no TV, uncomfortable seats. Had much higher expectations.

Etihad Check In counter/Station manager in Heathrow was bothering and not helpful at all. They are rude and not customer oriented

Everything you need to know for your flight to Southeast Asia

Cabin class types available on flights to Southeast Asia

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