S$ 400 Find Cheap Flights from Southeast Asia to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Heathrow departing on 20-10. 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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1 adult, Economy, 0 bags

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Cheap Flights from Southeast Asia to Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Southeast Asia to Heathrow 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 from Southeast Asia to Heathrow

Mon, 3 Aug - Mon, 31 Aug
SAUDIA Logo
13:00 - 07:30
KUL
-
LHR
25h 30m
1 stop
SAUDIA Logo
10:00 - 11:20
LHR
-
KUL
18h 20m
1 stop
S$ 869SAUDIA
Mon, 14 Sep - Fri, 6 Nov
Etihad Airways Logo
09:50 - 12:45
KUL
-
LHR
33h 55m
1 stop
Etihad Airways Logo
13:55 - 19:35
LHR
-
KUL
21h 40m
1 stop
S$ 881Etihad Airways
Tue, 3 Nov - Tue, 24 Nov
Etihad Airways Logo
09:35 - 14:30
KUL
-
LHR
36h 55m
1 stop
Etihad Airways Logo
20:55 - 19:35
LHR
-
KUL
14h 40m
1 stop
S$ 882Etihad Airways
Wed, 21 Oct - Tue, 27 Oct
Etihad Airways Logo
09:50 - 18:45
KUL
-
LHR
15h 55m
1 stop
Etihad Airways Logo
20:55 - 19:35
LHR
-
KUL
14h 40m
1 stop
S$ 886Etihad Airways
Sun, 2 Aug - Tue, 18 Aug
Qatar Airways Logo
03:15 - 14:10
SIN
-
LHR
17h 55m
1 stop
Qatar Airways Logo
18:55 - 21:15
LHR
-
SIN
19h 20m
1 stop
S$ 963Qatar Airways
Thu, 19 Nov - Thu, 26 Nov
British Airways Logo
23:15 - 05:45
SIN
-
LHR
14h 30mdirect
British Airways Logo
18:45 - 16:05
LHR
-
SIN
13h 20mdirect
S$ 965British Airways
Sun, 9 Aug - Wed, 26 Aug
Qatar Airways Logo
10:20 - 08:00
SIN
-
LHR
28h 40m
1 stop
Qatar Airways Logo
08:25 - 15:45
LHR
-
SIN
24h 20m
1 stop
S$ 967Qatar Airways
Wed, 12 Aug - Wed, 19 Aug
Turkish Airlines Logo
11:10 - 22:25
SIN
-
LHR
18h 15m
1 stop
Turkish Airlines Logo
06:30 - 08:45
LHR
-
SIN
19h 15m
1 stop
S$ 970Turkish Airlines
Mon, 7 Sep - Wed, 30 Sep
Emirates Logo
09:50 - 16:10
PEN
-
LHR
37h 20m
2 stops
Emirates Logo
09:05 - 13:25
LHR
-
PEN
21h 20m
2 stops
S$ 1,092Emirates
Sun, 2 Aug - Sun, 23 Aug
Emirates Logo
09:50 - 16:10
PEN
-
LHR
37h 20m
2 stops
Emirates Logo
09:05 - 13:25
LHR
-
PEN
21h 20m
2 stops
S$ 1,132Emirates
Useful Info

Good to know

Low seasonFebruary
Cheapest flightS$ 400
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 1% lower on average.
Flight from Kuala Lumpur to London

FAQs for booking Southeast Asia to London Heathrow Airport flights

  • How does KAYAK find such low prices on flights from Southeast Asia to London Heathrow Airport?

    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 Southeast Asia to London Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from 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 Southeast Asia to London Heathrow Airport?

    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 London Heathrow Airport with an airline and back to Southeast Asia with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Southeast Asia to London Heathrow Airport?

    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 London Heathrow Airport from Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines flying from Southeast Asia to Heathrow

 
Need help choosing which airline to fly with from Southeast Asia to Heathrow? 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 1557 reviews
7.8Food
8.6Crew
8.1Entertainment
8.3Boarding
8.0Comfort
Airline reviews

Clean modern comfortable. Food could have been better, I only ate breakfast I wish they wouldn’t wake sleeping passengers who would rather sleep through dinner. No tea or coffee for breakfast

8.0 ExcellentAnonymous, May 2026
JFK - FRA
Read more Singapore Airlines reviews

Clean modern comfortable. Food could have been better, I only ate breakfast I wish they wouldn’t wake sleeping passengers who would rather sleep through dinner. No tea or coffee for breakfast

Kayak really screwed up by offloading the booking to a third party. They were completely inept and caused a bunch of toil. I will never use Kayak again.

I had ordered vegetarian food. What I was presented was extremely dissatisfying and not up to the mark. I pretty much did not eat entire 19 hours. For.an airline voted as best in business, it was extremely disappointing. Seats were not comfortable to sleep. Entertainment system didn’t have much choice. WiFi didn’t work for more than half the time. Cabin crew were also difficult to understand. A bit of diversity like Emirates crew would go a long way.

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

We flew business class. It was excellent. For a 6’4” individual, the seats were slightly uncomfortable for sleeping. But this is only comparison to other business class seats. Otherwise, the crew was incredibly attentive, And the service was impeccable.

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.

Good flight. The food was served a bit late, hence a hurry to finish before landing. Excellent crew and service

I commend the flight attendants on our SFO-SIN flight who went above and beyond to provide us with extra snacks and food. This type of service makes the flight experience personal and awesome.

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

Left hr late & arrived 1hr late luggage was slow to be offloaded! The flight crew & food were good! Movie selection was ok!

Very bad service and food variety will never come back again

My baby was with me it was really good experience with emirates

Fantastic as ever. Great staff super catering and excellent service.

Flight and entertainment great. Food needs to be improved, only one choice on the menu. Staff worked well throughout.

Crew were excellent and the bar service and chat fantastic. Cheese board delicious. Amenity kit good, very disappointing not getting pyjamas on this leg of the flight and needed to reuse from earlier flight.

Hospitality is good. Should improve on buggage handling because l lost a suitcase. Layover in Dubai was too long , 6 hours

Everything was superb, only bad point was that the fast track on London Heathrow arrivals was not handed out to me and I had to go back to the gate to collect it.

Superb experience. I hope they bring back the fast track option at Heathrow immigration.

I liked theAVML food. Taste was alright and quantity was enough. Sometimes during the flight I felt that the smell from toilet was coming to the cabin

You can improve in many ways First the crew in general is good, but needs to work with passion to their works not like robots Second, collecting the ear headphones long time before landing is strange The crew should deal with the passengers with respect and descent way not like giving orders

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

Friendly and discreet staff. Could have done with a few more offers of water/snacks overnight. Movie and tv selection notably poor. Seats not especially comfortable

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

I’ve flown with Qatar multiple times and the service has always been great. Very professional, organized, the food is delicious and plentiful, tons of entertainment.

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

Good staff, good intent, decent entertainment. More seat space would always be of benefit

Everything from start to end was good and easy plus clean i enjoy my trip in qatar airline

Service and boarding is good in brussels But in Qatar, boarding needs to be improved and waiting in very big queue for boarding. Parents with kids needs to be given some priority also.

Very Old flight. I didn’t expect to see this old flight. The entertainment system was very poor for a 15+ hours flight. The staff was amazing and food could is no bad could be better.

BLR boarding is total pathetic. Should not fly Qatar from Bengaluru. Check in staff is too rude there

They lost the baggage and said it was deleted from the system. I had baggage tag so was able to file the complaint but there was no PIR number and update so far

On this flight...fine. The one from India to Abu Dahbi, awful.

I am a larger than average person and in my opinion i don't think it's fair to allocate a window seat to anyone who is my size or larger, i was seated between 2 large passengers on a full aircraft. The guy in the window seat also occupied a portion of the middle seat (my seat) which made my experience of flying with etihad very cramped and uncomfortable, i was flying from Abu Dhabi to Bangkok. Had this been a airbus 380 it would have been better as the seats are larger but unfortunately it wasn't so i had to endure the 6+hrs unable to get any rest

Stewardess was attentive and was actively roamin to check the passengers on the biz class

This flight was a dreamliner so I think the space was ok for the legs, but the option for food was again limited and the crew was same.

I did not have a good experience in both flights of Etihad. First of all, when I was booking the flight, there were two options. The first option was a cheaper flight with longer layover (9 hrs), or a more expensive flight with shorter layover (2 hrs). I booked the expensive flight with shorter layover because I wanted a more comfortable trip. A few days before the trip, Etihad informed me that the departure time of my first flight will change 7 hours earlier, leading to an 9 hour layover, without giving me another option nor reimbursing me for the extra cost. They didn’t even send me an apologetic email for this change. Regarding the flight experience, I would rate it as mediocre. This is mostly because the pilots of both flights did their best to give us the worst approach to airports that I have ever experienced. In the case of the first flight they had to aboard the landing and took off again right before touching the landing strip. The captain said that it was due to wind conditions but the second time the pilot followed the same direction as the first time to land the plane.

Ripped off and broken seats in Business class. Seats stink and need to request the staff for additional bedsheets. Crew if very friendly though

I request kosha food all my flight but this flight didn’t imclude my kosha meal.

Entertaiment center needed on that flight. I dont like to use my phone for entertainment.

crew as a whole is pretty mediocre. dont seem to care much for passengers. Asked 3 different crew for custom papers for immigration check in and they all said i could get it in the airport. have flown to india 3 times prior to this with Qatar and Emirates and they have always provided this paper ahead of landing to speed up the check in process. Also felt in general the crew is irritated and overworked. The one lady in my aisle from Chicago to Abu Dhabi was very pleasant but i was noticing the other crew were nice to each other but pretty cold with the passengers. Not what i usually have experienced from this type of overseas travel. Ive always felt the crew in qatar and emirates were overly sweet and pleasant but having seen the opposite this time i definitely prefer the former.

I was booked in Premium Economy and never given a chance to choose to purchase my own seat. Ended up with a middle seat, which was very difficult for me. The airline then left my bag in London so when I arrived in Instanbul it was not there. They delivered it to me the next day but many valuable items had been stolen. I've been flying with BA for years and this was the first time I had such a bizarre and bad experience with them.

It was good. I really liked the breakfast which was served.

My bag stayed in London - it didn't arrive in JFK and I was informed it would arrive at my address next day. I'm still waiting for my bag and it has not been delivered. I have an air tag, my bag arrived at JFK airport around 12pm and it has been moving between terminals since then. Now they said it may arrive 1 am or tomorrow. I'm jet lagged from my flight from India, without my suitcase and may need to miss a work day (Monday) because my suitcase was not delivered at the time it was promised (today, in the afternoon). The suitcase delivery service is not reliable and I'm not happy waiting around the entire Sunday to hear that it may or may not arrive today.

The worst experience with British airways that left me with a delayed flight until the next day and no hotel accommodations available or food voucher. I still have had anyone follow up on this matter

Always the same, boarding starts before the plane is ready so we were all standing in the sun and 36 degree heat on the tarmac. Once in London, packed like sardines in busses to the terminal. BA have a way of making you feel like they dont want you as a customer.

We boarded late, sat on the plane for 45 minutes, I was sweating on the plane and there was a child that screamed and kicked my seat almost the entire flight. The parent nor the crew would do anything about it. Food was very good.

The crew member of my cabin was excellent. The flight was delayed due to air traffic in London. I worried about my connection. The flight attendant eased my worry with prompt updates on the current flight status, as well as helping me log on to BA.com to find out the exact gate info for the next flight. Truly appreciated his help.

Meh. Lived the seat. The entertainment unit did not work and had to be reset 3 times. Service was SLOW taking over 90 min to be served. Crew forgot about my meal. Chicken was dry and almost inedible.

There was an older steward, he is top notch. He is very attentive at the passengers. I do not know his name. Thank you to him.

Good was great. Some of the older crew were grumpy and not customer friendly.

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