S$ 367 Find Cheap Flights from the United Kingdom to Southeast Asia – Compare and Save

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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?

The cheapest ticket to Southeast Asia from the United Kingdom found in the last 5 days was to Singapore, at S$ 610 return. The most popular route is London Gatwick Airport (LGW) to Singapore (SIN) and the cheapest return ticket found on this route in the last 5 days was S$ 610.

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

The cheapest month for flights from the United Kingdom to Southeast Asia is November, when tickets cost S$ 658 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is S$ 1,078 and S$ 1,035 respectively.

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

The cheapest time of day to fly to Southeast Asia is generally in the morning, when retur flights cost S$ 1,246 on average. Morning departures are around 7% cheaper 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 S$ 1,353.

How far in advance should I book a flight from the United Kingdom to Southeast Asia?

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 11% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 20 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 Singapore Changi Airport (SIN), with an average flight price of S$ 1,496.

Good to know

Low season

September

Cheapest flight

S$ 367
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (30% more expensive on average)
Flight from Manchester to Singapore

Flights from the United Kingdom to Southeast Asia: the best tips from KAYAK users

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

  • 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 Monday when return tickets can be as cheap as S$ 1,235. On the other hand, the most expensive day to fly is Saturday, when return prices are S$ 1,647 on average.

Reviews of the top 5 airlines flying from the United Kingdom to Southeast Asia

 
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 1599 reviews
8.3Boarding
8.0Comfort
8.6Crew
8.1Entertainment
7.8Food
Airline reviews

Crew were so busy Anna so awesome. I was in a seat that got my food nearly last but the crew were Just awesome.

8.0 ExcellentMatt, Jun 2026
Read more Singapore Airlines reviews

Crew were so busy Anna so awesome. I was in a seat that got my food nearly last but the crew were Just awesome.

Really great service throughout and the food was really nice. I can highly recommend thank you very much.

Good service and food. For buying items on flight should be preordered as they don’t keep much stock on board.

The seats were more narrow than at other lines. Food was mediocre (economy class)

Service excellent would chose Singapore airlines as my first choice

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.

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

The male traveller seated in the row in front diagonally opposite my husbands seat across the aisle as soon as the seatbelt sign went off moved across the aisle into the seat in front of my husband for the entire journey from London to Singapore he had his seat reclined and pushed back and the seat touching my husbands knees for the entire journey from London to Singapore. very uncomfortable for my husband.

More Baggage limit Alternative of virtual check in at airport , prefer personal touch with “real person”check in counter for baggage drop

Excellent customer service from pre boarding to the end. Really enjoyed my flight. Very helpful crews during flight as well. Will definitely flight with Singapore airlines again.

I’m still in Zurich because my British Airways flight was so delayed, I didn’t make the flight to Los Angeles yesterday.

Very unprofessional treatment of customers - boardring on being unethical. Only cares about money and not the customer. If you use the swiss brand, you should deserve it - now swiss air doesn't deserve the swiss brand.

Best international flight I have had in a while! Far superior accommodation, services, food and general experience compared to U.S. airline companies.

Very nice crew and great food. Easy to board just wish the flight could be shorter or seats more comfortable or more room to walk around when you get cramps in your legs from sitting so long. Crew was great and attentive and really was good food.

The flight was generally good but was delayed departure meant a very late arrival for a connecting flight.

Delayed 30 mins Forced to check in my carry on luggage

We are flying with Swiss for a long time but this time was terrible do to are flight cancellations we are in some bad hotel with out normal food

It was not made clear that additional passport control is needed before queueing up for boarding. The seats were very uncomfortable and cramped even for small persons. The arm rests were not fully capable of lifting up out of the way and the media controls cut-out made them even worse to lean on. Just one audio channel was working on one of our seats.

Not much that I liked. The seating and Space between the seats was very bad for long flights.. very bad for such a prestigious Airline.

No fault of the crew, but the the rear lavatories were closed the entire flight. The front lavatories were blocked off for the first part of the flight by the food cart. Then some minor turbulence occurred so the fasten seatbelt sign came on for the second part of the flight. Heroic containment engaged! It was not fun.

I have paid extra money for my special meal service but I received the the local food. Which is not acceptable.

More entertainment channels and better food, whatever food requirement you select.

The flight from NY to Bangalore was very good but the return flight from Bahrain to NY was mediocre

Pretty much what you'd expect for an economy flight. The crew were excellent as usual. The food was ok, but nothing special.

Very poor experience, passengers and were not social and started a troubled with other passengers and a fight erupted

The drinks should come before food. Unable to have any fluid unless after food. Thanks

Aereo nuovissimo e con tanti servizi malgrado la durata del volo Spazio per le gambe ridottk

Aircraft was new and comfertable .on time. Cabin crews, which I got english language pronounce was very difficult to understand .ovee all ok flight

The boarding at Heathrow is chaotic. That's partly due to the lack of space and seating at gate 8, and a Qatar flight from gate 9 at the same time. That's down to Heathrow rather than Gulf Air. I've had a similar experience here before. Another problem which isn't specific to Gulf Air or Heathrow is announcements, and those for boarding in particular. They are difficult to hear with all the other noise and for me with hearing problems it's even worse. A simple tv screen would help, so long as it's updated of course.

This itineray had to be cancelled as the connection time in Paris was only 55 min which is below the 90 min required by Paris airport. Nether Chat deal/Kayak, nor Gulf air nor American Air picked on that. I called American Air for unrelated question was then told that boarding would be denied due to the short connection time. This should have been an automatic notification from Chat deal/ Kayak or Gulf air and itinery cancelled. What is the point of inconveniencing the passenger?? The return has still not be refunded. Shame on Gulf Air, very poor customer service for an airline that has so good flight crew!

Someone sat in my seat and this made boarding protracted and unpleasant. The stewardesses kept saying, “it is important that everyone be seated — or we will be further delayed,” but for a long time they did not tell me where to sit. At the end of the flight a baby screamed loudly for several minutes and it took ninety minutes (!) to get through EU passport and customs. We had to stand the whole time in a an overheated room. The seat on the plane was narrow. These things are not all Lufthansa’s fault but they made for a somewhat unpleasant trip.

Everything about the flight was excellent except for the fact that we had to wait one hour on the tar app and then I had to race to catch my connecting flight with the next stop

The flight on time, flawless check in and boarding process, the crew was very friendly.

Generally OK. The very worst part was the food we were served (on a special diet) which the crew apologised for and said they took photos for there managers. This flight was using a code-share from Discovery Airways, so perhaps not Lufthansa's direct fault. The general food was far better but definitely not plentiful unlike some other airlines. Otherwise it was a nothing special experience unlike the superb time we had last year for a similar route on Cathay!

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

The plane was late (as was my flight out from Birmingham the day before)

The flight was delayed by an hour. Made the connection uncomfortably tight.

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

Pleasant and friendly staff. Comfortable aircraft. Speedy boarding. Took off on time. Arrived earlier than scheduled. Overall very enjoyable flight.

I have a walker I need it to get from the plane to customs and baggage claim. It had a huge orange tag on it saying it should be given to me as I got off the plane. It was not and the flight staff didn’t know where it was—both on my flight to London and on the return. In It was very frustrating

They forced me to check my wheel bag because there was a full flight. This was very frustrating. I went out of my way when planning my trip to not have to check any bags. Usually, they ask people if they are willing to check a bag they do not force people. This felt like bad planning on the part of the airline.

Had a plane! Have a plan! Have my luggage! 10 hours of travel turned into 50 hours. Good Lord!

Great flight, great crew, decent food. Premium Economy was very comfortable. I compare this flight to the one we took on BA from DC to London: Like a different airline. The food was atrocious, the crew aloof, and the cabin not as comfortable. Based on that first flight we said we'd avoid BA, but the return trip changed our minds.

Those seats were very comfortable. Nice leg room and food was great 👍

because the previous flight operated by BA was delayed, when arrived to the gate, I was surprised that I was taken out of this flight and they rebook me but with a different seat

delayed more than an hour with very poor boarding and service

We arrived at 430a for our flight. We only had carry on so we were sent to security. The BA person was tagging all carryon in case a shortage of bin space. We were on the plane like 20th and told we had to check carryon because it had a tag. Unexpected and unnecessary

The travel on premium economy class was very positive. Comfortable with plenty of space and leg room. The service throughout was top notch. Crew members were kind and helpful. Food and entertainment were excellent.

More options for your flight to Southeast Asia

Complete your trip to Southeast Asia with a hotel stay or car hire