LHR

฿5,906 Find Cheap Flights to London Heathrow Airport – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
฿20,687
Typical prices: ฿28,455-฿39,718
เอทิฮัดแอร์เวย์, China Eastern
Sun 11/11Sun 25/11
CNX - LHR • 1 stop
Cheapest direct flights
฿34,247
Typical prices: ฿34,310-฿40,873
เวอร์จินแอตแลนติก
Mon 10/12Thu 27/12
HKT - LHR • Direct
Direct flights
You can fly direct with Thai Airways, EVA Air, and เวอร์จินแอตแลนติก. Average duration is 13h 02m
FAQs
FAQs
Top airlines
Most flights • 14 per week
Best reviews • 8.5 score
Airline reviews
+1
Airline reviews
+1
Top routes
Cheapest • 30% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 11% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 9% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to London Heathrow Airport!
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Booking Insights
Flight Deals

Cheap Flights to Heathrow

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

Recent return flight deals to Heathrow

Wed 11 Nov - Wed 25 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
฿20,687Multiple Airlines
Tue 10 Nov - Wed 25 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
฿20,720Multiple Airlines
Thu 12 Nov - Tue 24 Nov
เอทิฮัดแอร์เวย์ Logo
09:10 - 18:10CNX  Chiang Mai-LHR London Heathrow
16h 00m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
20:55 - 06:05LHR  London Heathrow-CNX Chiang Mai
26h 10m1 stop Abu Dhabi Zayed Intl
฿23,623เอทิฮัดแอร์เวย์
Tue 27 Oct - Sat 31 Oct
เอทิฮัดแอร์เวย์ Logo
09:10 - 18:10CNX  Chiang Mai-LHR London Heathrow
16h 00m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
20:55 - 06:05LHR  London Heathrow-CNX Chiang Mai
26h 10m1 stop Abu Dhabi Zayed Intl
฿23,623เอทิฮัดแอร์เวย์
Sat 7 Nov - Wed 18 Nov
โอมานแอร์ Logo
19:10 - 05:55BKK  Bangkok Suvarnabhumi-LHR London Heathrow
17h 45m1 stop Muscat Seeb
โอมานแอร์ Logo
08:25 - 06:45LHR  London Heathrow-BKK Bangkok Suvarnabhumi
15h 20m1 stop Muscat Seeb
฿24,976โอมานแอร์
Sat 7 Nov - Thu 19 Nov
โอมานแอร์ Logo
09:00 - 18:25BKK  Bangkok Suvarnabhumi-LHR London Heathrow
16h 25m1 stop Muscat Seeb
โอมานแอร์ Logo
08:25 - 06:45LHR  London Heathrow-BKK Bangkok Suvarnabhumi
15h 20m1 stop Muscat Seeb
฿24,976โอมานแอร์
Fri 22 Jan - Sat 6 Feb
Finnair Logo
11:15 - 17:00BKK  Bangkok Suvarnabhumi-LHR London Heathrow
36h 45m1 stop Helsinki-Vantaa
Finnair Logo
07:30 - 16:35LHR  London Heathrow-BKK Bangkok Suvarnabhumi
26h 05m1 stop Helsinki-Vantaa
฿29,001Finnair
Thu 29 Oct - Wed 11 Nov
Finnair Logo
11:15 - 15:15BKK  Bangkok Suvarnabhumi-LHR London Heathrow
35h 00m1 stop Helsinki-Vantaa
Finnair Logo
10:20 - 09:40LHR  London Heathrow-BKK Bangkok Suvarnabhumi
16h 20m1 stop Helsinki-Vantaa
฿29,727Finnair
Wed 20 Jan - Mon 15 Feb
Qatar Airways Logo
03:00 - 13:25BKK  Bangkok Suvarnabhumi-LHR London Heathrow
17h 25m1 stop Doha Hamad Intl
Qatar Airways Logo
14:00 - 13:05LHR  London Heathrow-BKK Bangkok Suvarnabhumi
16h 05m1 stop Doha Hamad Intl
฿30,123Qatar Airways
Tue 2 Feb - Mon 8 Feb
Qatar Airways Logo
02:00 - 14:00BKK  Bangkok Suvarnabhumi-LHR London Heathrow
19h 00m1 stop Doha Hamad Intl
Qatar Airways Logo
09:25 - 06:40LHR  London Heathrow-BKK Bangkok Suvarnabhumi
14h 15m1 stop Doha Hamad Intl
฿30,123Qatar Airways
Booking Insights

Price, demand, and travel trends for Thailand to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Thailand to London Heathrow Airport with more confidence.

What is the cheapest flight to London Heathrow Airport?

Chiang Mai to London Heathrow Airport is the cheapest route at ฿20,687 return, found in the past 5 days on KAYAK. Bangkok Suvarnabhumi Airport to London Heathrow Airport is the most popular connection with return deals from ฿24,976.

How much is a flight to London Heathrow Airport?

A return flight to London Heathrow Airport costs ฿33,766 on average, based on data over the past 12 months on KAYAK. Return fares from Krabi average ฿24,701, while Phuket City runs a bit higher at ฿30,763.

What is the cheapest day to fly to London Heathrow Airport?

Tuesday is the cheapest day to fly to London Heathrow Airport at ฿33,257 return on average over the past 12 months on KAYAK. Monday is the most expensive at ฿35,005.

What is the cheapest month to fly to London Heathrow Airport?

  • February is the cheapest month to fly to London Heathrow Airport with an average price of ฿30,584 return.
  • July (฿37,678) and August (฿37,051) are the most expensive.
  • Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to London Heathrow Airport?

Evening flights to London Heathrow Airport are the cheapest at ฿27,846 return on average. Afternoon flights are the most expensive at ฿36,820.

What is a good deal for flights to London Heathrow Airport?

Flights under ฿28,455 are considered a good deal. 25% of KAYAK users found return flights to London Heathrow Airport at or below these prices, with the lowest fares from:

  • Krabi ฿18,493
  • Chiang Mai ฿26,402
  • Phuket City ฿26,444
.

When are flights to London Heathrow Airport the cheapest?

Flights to London Heathrow Airport are cheapest 5 weeks before departure. Booking in this window typically costs about 11% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for flights to London Heathrow Airport

Low season

February

Cheapest flight

฿5,906
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (4% more expensive on average)
Flights from Krabi to London Heathrow Airport

When to book flights to Heathrow

Are your dates flexible? Find out the best times to travel to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to London Heathrow Airport, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What is the difference between the most popular and the most frequent airline at London Heathrow Airport?

    Thai Airways operates the most flights from Thailand to London Heathrow Airport at 14 per week, and for this route Thai Airways is also the airline most often selected by KAYAK users searching for flights from Thailand to London Heathrow Airport. The two are sometimes different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

  • Which airports serve London and the surrounding area?

    Flights to London can arrive at several major airports serving the metro area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Nearby alternatives within 80.5 km of London include London City (LCY). This airport is not in London itself but may be useful depending on your route, airline, and onward travel plans.

  • How long are direct flights to London Heathrow Airport from different departure cities?

    Direct flight time to London Heathrow Airport varies depending on your departure city:
    • from Phuket City: 13h 20m
    • from Bangkok Suvarnabhumi Airport: 12h 30m

  • Where can I fly from to get the cheapest fares to London Heathrow Airport?

    Based on fares booked in the past 5 days, the cheapest flights to London Heathrow Airport are from:
    • Bangkok, from ฿24,976 return

  • How many flights serve London Heathrow Airport?

    London Heathrow Airport receives 3 flights per day and 24 per week from across the world. Bangkok Suvarnabhumi Airport has the most flights to London Heathrow Airport with 25 weekly flights.

  • How do I know if a flight to London Heathrow Airport is a good deal?

    A good deal on a flight to London Heathrow Airport is around ฿28,455 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • How expensive are last-minute flights to London Heathrow Airport?

    Last-minute fares to London Heathrow Airport – booked within 2 weeks of departure – run 5% above the average return fare of ฿33,766.

  • Which airlines should I consider for flights to London Heathrow Airport?

Your guide to booking London Heathrow Airport flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to London Heathrow Airport, aim to book around 5 weeks before you fly. That window historically saves about 11% versus last-minute pricing based on KAYAK booking data over the last 12 months.
  • For flights to London Heathrow Airport, recent KAYAK data shows that stronger deals tend to be around ฿28,455 return. If you see a fare below that threshold, it's a good deal – book before the price climbs back up.
  • If you can choose when to go, aim to travel to London Heathrow Airport in February. Return fares historically average ฿30,584 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to afternoon to save up to ฿8,974 per return. Afternoon flights to London Heathrow Airport average ฿27,846 compared to ฿36,820 for midday flights. See the time-of-day chart above for the full breakdown.
  • Bag allowances vary by airline, fare type, cabin class, and route. On flights to London Heathrow Airport, some airlines may include bags at no extra cost. For example, Thai Airways includes a cabin bag and a checked bag in Economy class, EVA Air includes a cabin bag and a checked bag in Economy class, and เวอร์จินแอตแลนติก includes a cabin bag and a checked bag in Economy class. Always check the fare details before booking, since bag policies can change by ticket type.
  • Once you arrive in London Heathrow Airport, a few great places to start are Paddington Station, Emirates Stadium, and Covent Garden Tube Station. These are popular with first-time visitors and can give you a good feel for the area.

Reviews of the top 5 airlines flying to Heathrow

 
Need help choosing which airline to fly with 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.
8.5
EVA AirOverall score based on 1524 reviews
8.0Entertainment
8.5Boarding
8.3Comfort
8.1Food
8.7Crew
Airline reviews

I liked that they gave us a couple of meals and drinks but the meal was not good and not many options especially if we are seated in the back of the plane.

6.0 GoodBrandon, Apr 2026
Read more EVA Air reviews

I liked that they gave us a couple of meals and drinks but the meal was not good and not many options especially if we are seated in the back of the plane.

Excess baggage fees are outrageous ($250 per bag). Flight crew and planes are nice.

Service in BKK was very good at answering our question about our canceled flight from Taipei to San Francisco. Did like the lead time about the canceled flight from Taipei to San Francisco and was not given the best options.

The flight attendants should be nicer, on my first flight I told them I’d prefer a veggie meal sometimes and then she began to lecture me about it, it was a late flight and I wanted an easy digestion meal so that I can sleep quickly. The meals were abit odd, breakfast on my last flight had eggs, oatmeal and fish, did not taste good at all, strange combination. The economy seats are very tight and crowded, not comfortable at all. Overall for the price I paid I thought I was going to get more.

Clean plane, friendly crew, mostly on-time departure. Negativo since there were no snacks offered. Cold drinks only was fine due to turbulence, but nothing to eat? Really?

Except for crying babies all was ok although the movie selection wasn't the best.

I like Eva Air. I’ve been flying it for several years.. I did notice small changes for the worse by the staff. They’re still way above major carriers based in the USA.

Poor food on board, but seats are too small and uncomfortable

1. The entrance to boarding gate G5 (which is at a lower level) is from the walkway (which is at the upper level). That entrance was locked and there was no place for hundreds of people to sit at the upper level, for a long time as the flight was 45 minutes late. 2. The choice of movies on board was extermely limited and poor. 3. The staff was unhelpful and faked politeness.

The flight went well. Everything good. Boarding. Meal service. Snack (crackers) & Drinks. Entertainment was good as I watch 4 movies. The need to have milk for hot black tea though as coffee creamer just never makes tea taste nice.

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

Service for drinks and food really slow. Same food served on two long flights —LON to BKK. Would only fly if price was right - otherwise best avoided.

I like soft landing with Oman air both ways,food could have been better it was very poor

Joyful and pleasant. Food is amazing staff are so welcoming seats are comfortable. I would like to thank Shahrazad for her amazing service,

If you fly more often with Oman on the same route, you will realize the offered food is always the same. Quality of food is good, however, it is getting boring to know there is a soup or salad with goat cheese as starten and maincourse there is lamb, fish or vegetarian pasta. Pasta is always nice.

Really a nice flight. , very comfortable seats and leg space.

We missed our connection due to technical issues with the plane. We were stuck in Oman Airport for 5 hours, had to overnight there, got rerouted to London, were denied boarding on the plane, were then seated separately (as a family of 5), did not receive any notification of our luggage being in London, were denied boarding for the AA flight to Chicago, and then all seated separately again. Finally our luggage was lost. Worst experience ever. Will never fly on this airline again

The crew could have offered us seats together as the flight was half empty. But overall, the service quality was good as well as the food and entertainment options. Would love to fly Oman Air again.

Smooth until we get in the plane it was so small and uncomfortable the whole flight, apparently they have Changed the plane and I don’t know what was the problem this flight is from mct to phuket - on my way back everything was perfect

The whole trip was well organised, and pleasantly executed. As with most Qatar Airways flights the staff were particularly attentive and supportive. The Q Suite was the "icing on the cake".

Staff were attentive and professional, and managed to be personable and accomodating at the same time. Oman Air has become my airline of choice.

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

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

We still get drinks and a snack. Love the gift bags too.

business class is old but still done very well by the team.

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

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

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

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

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

1 hour delay meant missed my connecting flight and 1st day of holiday

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

excellent, staff and boarding were all seamless and no issues, thank you!

I was charged $604 for a bag that weighed 17 kg. I was given three different prices until they landed on the most expensive one and didn't budge a penny. It's ironic and a bit enraging because the total cost of my ticket was $468. I've traveled the world and never experienced these kind of prices for only one piece of checked luggage.

The WiFi was not compatible on both my phones (Vivo Y30 5g and Samsung Galaxy A32) with up-to-date android software.

Old plane, old entertainment system. It wasn't working throughout the entire flight. I was offered to connect to their system via Wifi to watch on my phone. Crew wasn't very helpful except one lady who turned the experience around.

It was OK as the seat which we paid for doesn’t have any window. We paid $120 for 3 seats but it’s for nothing. Crew could not help. None of the ports worked so all our phones went dry

Eine Toilette der Business Class war gesperrt und somit nicht benutzbar.

Travelling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
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Hounslow
Colchester
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Worthing
Brighton
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Huntingdon
Poole
Canterbury
Chelmsford
Basingstoke
Feltham
Woodbridge
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Harrow
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