฿9,280 Find Cheap Flights from Southeast Asia to London Heathrow Airport – Compare and Save

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Cheap Flights from Southeast Asia to Heathrow

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Southeast Asia to Heathrow

Tue 10 Nov - Fri 20 Nov
Multiple Airlines Logo
09:10 - 06:40CNX  Chiang Mai-LHR London Heathrow
28h 30m1 stop Abu Dhabi Zayed Intl
Multiple Airlines Logo
21:00 - 14:20LHR  London Heathrow-CNX Chiang Mai
34h 20m1 stop Shanghai Pu Dong
฿23,759Multiple Airlines
Mon 26 Oct - Sun 8 Nov
Multiple Airlines Logo
09:10 - 18:10CNX  Chiang Mai-LHR London Heathrow
16h 00m1 stop Abu Dhabi Zayed Intl
Multiple Airlines Logo
21:00 - 14:20LHR  London Heathrow-CNX Chiang Mai
34h 20m1 stop Shanghai Pu Dong
฿23,792Multiple Airlines
Thu 12 Nov - Mon 16 Nov
เอทิฮัดแอร์เวย์ Logo
09:10 - 14:30CNX  Chiang Mai-LHR London Heathrow
36h 20m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
19:20 - 06:05LHR  London Heathrow-CNX Chiang Mai
27h 45m1 stop Abu Dhabi Zayed Intl
฿24,516เอทิฮัดแอร์เวย์
Thu 12 Nov - Mon 16 Nov
เอทิฮัดแอร์เวย์ Logo
09:10 - 14:30CNX  Chiang Mai-LHR London Heathrow
36h 20m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
19:20 - 06:05LHR  London Heathrow-CNX Chiang Mai
27h 45m1 stop Abu Dhabi Zayed Intl
฿24,581เอทิฮัดแอร์เวย์
Thu 29 Oct - Tue 10 Nov
โอมานแอร์ Logo
09:00 - 18:25BKK  Bangkok Suvarnabhumi-LHR London Heathrow
16h 25m1 stop Muscat Seeb
โอมานแอร์ Logo
20:05 - 17:15LHR  London Heathrow-BKK Bangkok Suvarnabhumi
14h 10m1 stop Muscat Seeb
฿25,404โอมานแอร์
Sat 19 Sep - Mon 21 Sep
โอมานแอร์ Logo
09:00 - 19:10BKK  Bangkok Suvarnabhumi-LHR London Heathrow
16h 10m1 stop Muscat Seeb
โอมานแอร์ Logo
08:25 - 06:50LHR  London Heathrow-BKK Bangkok Suvarnabhumi
16h 25m1 stop Muscat Seeb
฿25,404โอมานแอร์
Fri 13 Nov - Sat 21 Nov
China Eastern Logo
03:00 - 17:30BKK  Bangkok Suvarnabhumi-LHR London Heathrow
21h 30m2 stops Wuhan Shanghai Pu Dong
China Eastern Logo
21:00 - 22:25LHR  London Heathrow-BKK Bangkok Suvarnabhumi
18h 25m1 stop Shanghai Pu Dong
฿25,996China Eastern
Sat 24 Oct - Sat 21 Nov
China Eastern Logo
19:10 - 18:30BKK  Bangkok Suvarnabhumi-LHR London Heathrow
29h 20m1 stop Shanghai Pu Dong
China Eastern Logo
21:00 - 22:25LHR  London Heathrow-BKK Bangkok Suvarnabhumi
18h 25m1 stop Shanghai Pu Dong
฿25,996China Eastern
Thu 3 Dec - Sun 13 Dec
Finnair Logo
11:15 - 17:00BKK  Bangkok Suvarnabhumi-LHR London Heathrow
36h 45m1 stop Helsinki-Vantaa
Finnair Logo
16:15 - 09:45LHR  London Heathrow-BKK Bangkok Suvarnabhumi
34h 30m1 stop Helsinki-Vantaa
฿28,826Finnair
Wed 2 Dec - Tue 25 May
Finnair Logo
11:15 - 17:00BKK  Bangkok Suvarnabhumi-LHR London Heathrow
36h 45m1 stop Helsinki-Vantaa
Finnair Logo
07:30 - 15:45LHR  London Heathrow-BKK Bangkok Suvarnabhumi
26h 15m1 stop Helsinki-Vantaa
฿29,781Finnair
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Good to know

Low season

February

Cheapest flight

฿9,280
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Chiang Mai to London Heathrow Airport

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 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.
7.9
Thai AirwaysOverall score based on 418 reviews
8.0Boarding
6.9Entertainment
7.5Food
7.7Comfort
8.5Crew
Airline reviews

Gate and boarding processes were handled smoothly and efficiently. Both (connecting) flights departed and arrived on time. The cabin crew seemed anxious and a bit stressed/rushed. Food service was OK, but the hot food dishes were poor quality.

8.0 ExcellentPeter, May 2026
Read more Thai Airways reviews

Gate and boarding processes were handled smoothly and efficiently. Both (connecting) flights departed and arrived on time. The cabin crew seemed anxious and a bit stressed/rushed. Food service was OK, but the hot food dishes were poor quality.

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

Need to improve on punctuality. My flight was delayed by 1 hour.

I give EVA 5 stars in every category. I enjoy this airline and it's great team of employees. I always highly recommend EVA to friends and family and everyone.

The flight was delayed going out of the gate at BKK that made it a difficult challenge to get through immigration transfer at tapei and make it to my departure on time. This appears to be a recurring issue. The flight crew and cabin crew were excellent. The food was very nice.

The setting configuration of the aircraft stinks. Nobody should pay business class fares and be so uncomfortable. The design of facing fellow passengers is a brilliant nincompoop.

The flight attendants ignored us several times which was annoying. The sandwich thing wasn't very good but it's only an hour flight, it would have been better to have entertainment over bad food.

My case was missing a wheel on arrival Heathrow and the staff were unhelpful when i tried to get some compensation stating it was not sufficient damage, i only wish that they at some point have to deal with the same situation it put me in, maybe they would change their attitude but overall it was a good flight

Check in was a disaster. 90 minutes and only 2 economy check in desks open. Had to rush to catch the flight.

food poor i said chiken i got pack a pow breakfast lousey .job to explain wot it was ...

The first segment from Atlanta to Abu Dhabi was fantastic, but we got downgraded to a different aircraft from Abu Dhabi to Delhi. We were supposed to be on a flatbed business class when we booked it but just about one week before travel, we were changed to A321 Neo, which just has old-fashioned business class seats that recline but don’t go flat. While I fully understand that sometimes these changes have to be made for operational reasons, but I asked for some credit or compensation for that and I did not get any anywhere with that

Maybe some more information as to why the flight got delayed I understand may be tell your customers that missiles were fired at a specific airport wouldn't be reassuring to the customers and would cause mayhem but something like recent events have cause a delay on your flight or smth

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

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.

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