£286 Find Cheap Flights from London Heathrow Airport to Thailand

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Thailand departing on 8/2. 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

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Cheap Flights from Heathrow to Thailand

Cheapest return prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok1 stop£440
Phuket City
Phuket City1 stop£472
Ko Samui
Ko Samui2 stops£745
Chiang Mai
Chiang Mai1 stop£394
Krabi
Krabi1 stop£532
Udon Thani
Udon Thani2 stops£553
Chiang Rai
Chiang Rai2 stops£594
Hat Yai
Hat Yai2 stops£858
Khon Kaen
Khon Kaen2 stops£620
Ubon Ratchathani
Ubon Ratchathani2 stops£686
Trat
Trat2 stops£810
Bangkok
Bangkok1 stop£440
Phuket City
Phuket City1 stop£472
Ko Samui
Ko Samui2 stops£745
Chiang Mai
Chiang Mai1 stop£394
Krabi
Krabi1 stop£532
Udon Thani
Udon Thani2 stops£553
Chiang Rai
Chiang Rai2 stops£594
Hat Yai
Hat Yai2 stops£858
Khon Kaen
Khon Kaen2 stops£620
Ubon Ratchathani
Ubon Ratchathani2 stops£686
Trat
Trat2 stops£810

Book Cheap Heathrow to Thailand Plane Tickets

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

Thu, 15 Jan - Tue, 27 Jan
China Eastern Logo
21:00 - 14:20
LHR
-
CNX
34h 20m1 stop
China Eastern Logo
15:35 - 17:30
CNX
-
LHR
32h 55m1 stop
£394China Eastern
Thu, 15 Jan - Tue, 27 Jan
China Eastern Logo
21:00 - 09:05
LHR
-
CNX
29h 05m2 stops
China Eastern Logo
16:25 - 17:30
CNX
-
LHR
32h 05m2 stops
£396China Eastern
Wed, 4 Mar - Wed, 18 Mar
Air China Logo
17:40 - 21:50
LHR
-
CNX
21h 10m1 stop
Air China Logo
23:05 - 17:50
CNX
-
LHR
25h 45m1 stop
£416Air China
Wed, 10 Jun - Tue, 16 Jun
Air China Logo
22:40 - 21:50
LHR
-
CNX
17h 10m1 stop
Air China Logo
23:05 - 20:25
CNX
-
LHR
27h 20m1 stop
£425Air China
Tue, 27 Jan - Wed, 4 Feb
Air India Logo
21:05 - 19:30
LHR
-
HKT
15h 25m1 stop
Air India Logo
20:30 - 11:30
HKT
-
LHR
22h 00m1 stop
£479Air India
Sat, 24 Jan - Sat, 31 Jan
Air India Logo
22:00 - 08:05
LHR
-
HKT
27h 05m1 stop
Air India Logo
09:10 - 20:30
HKT
-
LHR
18h 20m1 stop
£482Air India
Mon, 1 Jun - Mon, 8 Jun
Etihad Airways Logo
09:30 - 16:50
LHR
-
UTP
25h 20m2 stops
Etihad Airways Logo
13:00 - 12:45
UTP
-
LHR
29h 45m3 stops
£719Etihad Airways
Sun, 31 May - Thu, 25 Jun
Etihad Airways Logo
21:45 - 07:10
LHR
-
USM
27h 25m2 stops
Etihad Airways Logo
19:10 - 15:15
USM
-
LHR
26h 05m2 stops
£745Etihad Airways
Mon, 12 Jan - Mon, 19 Jan
Thai Airways Logo
11:50 - 13:40
LHR
-
UTH
18h 50m1 stop
Thai Airways Logo
20:50 - 19:35
UTH
-
LHR
29h 45m1 stop
£813Thai Airways
Wed, 11 Feb - Wed, 11 Mar
Thai Airways Logo
11:50 - 13:55
LHR
-
CEI
19h 05m1 stop
Thai Airways Logo
14:25 - 06:40
CEI
-
LHR
23h 15m1 stop
£929Thai Airways
Booking Insights

KAYAK's insights & trends for Heathrow to Thailand flights

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

What is the cheapest London Heathrow Airport to Thailand flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Thailand from London Heathrow Airport found in the last 72 hours was to Bangkok, at £643 return. The most popular route is from London Heathrow Airport (LHR) to Bangkok Suvarnabhumi Airport (BKK), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £643.

Can I save money by flying with a stopover from London Heathrow Airport to Thailand?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £636, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Thailand, 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 London Heathrow Airport to Thailand is September, when tickets cost £610 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £909 and £905 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to Thailand?

The average price of all round-trip flights from London Heathrow Airport to Thailand clicked on KAYAK for each day over the last 12 months.

For London Heathrow Airport to Thailand, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Thailand back to London Heathrow Airport, the best deals are generally found on Monday, with Saturday being the most expensive.

How far in advance should I book a flight from London Heathrow Airport to Thailand?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Thailand, 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 London Heathrow Airport to Thailand, you should book around 6 weeks before departure, which saves you about 10% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to Thailand

Low seasonSeptember
Cheapest flight£286
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (36% more expensive on average)
Flight from London Heathrow Airport to Phuket City

FAQs - booking Thailand flights

  • Can I stay at hotels at Thailand Airports?

    If you’re arriving late into Thailand, you might want to use a hotel before continuing your journey. At Bangkok Airport there is the Avagard Capsule Hotel, whilst at Chiang Mai Airport you can use The Residence Hotel. If you’re arriving at Don Mueang Airport there is the Amari Don Muang Airport Bangkok. Whereas at Phuket Airport you can opt for the Oasis Phuket Airport.

  • Where can I find family facilities at Heathrow Airport (LHR)?

    When travelling with kids you’ll be pleased to know there is entertainment at LHR to keep your little ones occupied. You can visit the Stay and Play areas, which are located in all the terminals. Here your kids can use soft play areas and slides, as well as get stuck into some exercise books.

  • Can I find hotels at London Airports?

    If your flight is early in the morning you can stay at a hotel so you’re not in a rush. For example, at Terminal 2 there is an Aerotel, whilst at Terminal 5 there is a Sofitel. These hotels are close to the check-in desks and also offer wake-up calls.

  • How do I travel from Thailand airports to the city centres?

    From Bangkok Airport you can get to the city centre in about 1h 20min using the ARL City Line and changing for the MRT Blue line. If you’re landing at Chiang Mai Airport you can get to the centre on the Ac 10 bus, which takes around 10 minutes. At Don Mueang Airport you can get the 146 – Rapid bus that takes about 1h 13min to Bangkok. Whereas at Phuket Airport you can get to an area like Kamala Beach in about 1h 5min on the Airport to Rawai bus.

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

    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 London Heathrow Airport to Thailand.

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

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

    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 London Heathrow Airport to Thailand 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 London Heathrow Airport to Thailand?

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

  • What is the cheapest time of day to fly to Thailand?

    The cheapest time of day to fly to Thailand is generally in the afternoon, when retur flights cost £649 on average. The most expensive time of day to fly to Thailand is generally at night, which is peak travel time and where the average cost of a ticket is £739.

Top tips for finding a cheap flight from London Heathrow Airport to Thailand

  • Looking for a cheap flight from London Heathrow Airport to Thailand? 25% of our users found tickets from London Heathrow Airport to Thailand for the following prices or less: Bangkok £491 one-way - £702 round-trip
  • When you get flights from London Heathrow to Thailand you are able to relax at a lounge before take-off. For instance, you can go to the Plaza Premium Lounge in Terminal 2. This costs about £40 and offers a range of food and drink, complimentary Wi-Fi and charging points.
  • Upon landing in Thailand you can get to nearby locations quickly. For instance, from Bangkok Airport (BKK) you can drive to Chon Buri in around 50 minutes. From Phuket Airport (HKT) you can go to Kamala Beach in about 35 minutes. If you're arriving at Don Mueang Airport (DMK) the journey to Nakhon Nayok is approximately 1h 20min. Whereas from Chiang Mai Airport (CNX) you can get to Lamphun in about 32 minutes.
  • If you have a disability or mobility issue when departing from Heathrow Airport (LHR) you are able to get help for your journey through the terminal. It’s suggested that you call up the airline 48 hours in advance so they have time to arrange for assistance.
  • You are able to get to Heathrow easily before take-off. From London Paddington Train Station you can get the Heathrow Express, which takes about 15 minutes. From central London, like Covent Garden, you can get the Piccadilly Line in about 45 minutes. There are also National Express buses you can get from Victoria Coach Station, which take approximately 35 minutes.
  • You can change your currency from British Pound to Thai Bhat when you land. At Bangkok Airport you can use Bangkok Bank Cash Exchange that’s located near to the bus terminal. Whereas at Chiang Mai Airport there is a Siam Commercial Bank next to the Arrivals exit.

Reviews of the top 5 airlines flying from Heathrow to Thailand

 
Need help choosing which airline to fly with from Heathrow to Thailand? 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 1297 reviews
8.1Food
8.4Boarding
8.6Crew
8.0Entertainment
8.3Comfort
Airline reviews

Everything was great, however the seats in the back are very small. Not as Comfortable as I would have liked.

10.0 ExcellentWalter, Nov 2025
TPE - BKK
Read more EVA Air reviews

Everything was great, however the seats in the back are very small. Not as Comfortable as I would have liked.

Its fantastic!!I like the food the serve in EVA air😊

Flight was canceled was only given only a 8 hour lead time. Had to fight to be put on another airline (United Airlines) that was leaving earlier then the one EVA and rescheduled.

Very good service and food. Crew was professional and helpful. Cabin and restrooms were kept clean

Very good service and food. Crew was professional and considerate. Cabin and restrooms were kept clean

EVA airlines was excellent: on time or early, safe, courteous crew. Highly recommended.

Aircraft was late getting to the gate - probably due to weather. We left the gate one hour late and had to wait another hour since we lost our slot in the takeoff queue. Our box was very wet and was falling apart when we got to Clark. It appears that luggage was exposed to weather in TPE while waiting to be loaded. Crew, however, handled the delay well and was able to provide planned service.

First time traveling with EVA.. great experience in economy class... Personnel very friendly..

Everything is good staff is polite and helpful flights are on time sub sandwhich for a snack was good with a bottle of water only thing maybe more variety of food like breakfast or dinner depends on the time

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.

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

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

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

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

The flight was mostly fine, but I really wished that seats had an outlet to charge devices considering the length of the flight (15 hours there and 14 hours back).

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

Terrible. It’s like they are stuck in the dark ages. I brought a standard carry on suitcase and a back pack - I was told I could only carry on 7kg per bag - in business class, I was forced to remove articles from the suitcase and put them into my backpack! That’s the most ridiculous thing I’ve ever encountered in all my years of flying. The two bags weighed the same amount but one could not be more than 7kg. Holy cow.

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

I wish I knew in advance that the connecting flight was by indigo air

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

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

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

I prebooked a comfort plus seat on this flight and therefore the flight was comfy. I got the correct seat in the correct section of the plane that I have booked, that's this. Flight was comfortable. Staff were average on the flight, appearing to be rushed and short in engagement with travellers, perhaps this to maximise there rest time on the flight.

Economy travel is really hard with no room to move especially when the person sitting beside you is an XL or XXL size person who if moving could hit your face

Indigo airlines is terrible. Staff is awful and so disorganized. They are so rude and unhelpful. I will never travel on Indigo airlines again!!!!!

Terrible experience resolving missed connection after flight was delayed. 3 hour queue at transit desk, not enough staff, no organisation, worst ever flying experience.

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

It’s a business class ticket but they didn’t give a lounge access

I paid 44 $ for seat upgrade (22D) and my seat was stack in high position for all the 6 hours of flight. I don't recommend the upgrade. I am looking to get my upgrade payment back

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

Wish the flight attendants were more attentive in serving food

More leg space than other flights, but *maybe* narrower seats

Poor boarding with incorrect gate numbers. Poor service they told me to throw away brand new water bottles. Poor immigration officers most likely American who hates Muslims. Poor service in the plane with no Urdu language sign posted anywhere. Horrible seats with no comfort at all they think people traveling in economy are animals. Slow food and water services. Slow baggage arrival.

One of your male flight attendant was pushy and a bit of a martinette. Completely unnecessary.

In Colombo when I-drop my baggage Sri Lanka air line crew not polite way talk very rude

Same problem place in the middle so small Im 1,85 m so not good 👍

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

Aircraft condition poor, no inflight entertainment, broken seats, seats worn, split armrests, flat seat cushions and seat would recline. Aircraft needs refitting completely!

Several seats in business class were broken. Some would not recline, others had other problems. They need to really update the seats and AV.

I reached the check in counter 1 hour before take off and was denied boarding because the luggage could no longer be transferred to the flight. I was aback when throughout the world(including India) for a domestic flight, you need to report 1 hour before boarding. Then on top of that i was made to buy a brand new ticket. I had paid $350 for a business ticket between delhi and mumbai and then was made to buy another economy ticket for $100, No concessions/discounts were made for the airline's own inefficiency! The reservation counter was also extremely rude and unapologetic about making me pay a second time. For such a mediocre airline, there seems to be zero focus on providing good service to their customers and providing a pleasant experience.

Worst staff from Vienna. one of the server was very rude and annoying as she thinks she owns the airlines

my experience with kayak was terrible. Team kayak just left me with a booking and limbo and preffered not to contact me.. Instead when I contacted the team they said the booking is cancelled. Seriously 5 days after booking u were waiting of my call to inform me of the incompetence of the team. This will be taken up with higher authorities

Miss my flight from delhi to amritsar due to lock the luggage door of airplane.and there was no more flight even for next days and they not refund the fare. I took bus grom delhi.. bad experiance.

very run down aircraft. seat tilted. the mobile / magazine holder was broken. The entertainment screen was not working. The crew was good, polite and helpful

Boarding was through bus even though aerobridges were empty. Major mess

Flight crew was lovely. Bathrooms should have been cleaner. The handsets in business class for watching the entertainment are horrible. Very difficult to figure out which buttons are for what. I managed to get the flight maps on my screen but it wasn't easy. Never got anything else up.

Poor hygiene in the lavatories. Limited control of passengers who often were up standing around my seat talking loudly with their friends.

Everything you need to know for your flight from Heathrow to Thailand

Information on your arrival and departure airports