£292 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 20/4. 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£435
Phuket City
Phuket City1 stop£498
Ko Samui
Ko Samui2 stops£749
Chiang Mai
Chiang Mai1 stop£555
Krabi
Krabi2 stops£573
Udon Thani
Udon Thani2 stops£637
Chiang Rai
Chiang Rai3 stops£633
Khon Kaen
Khon Kaen2 stops£650
Hat Yai
Hat Yai2 stops£632
Ubon Ratchathani
Ubon Ratchathani2 stops£671
Trat
Trat2 stops£628
Bangkok
Bangkok1 stop£435
Phuket City
Phuket City1 stop£498
Ko Samui
Ko Samui2 stops£749
Chiang Mai
Chiang Mai1 stop£555
Krabi
Krabi2 stops£573
Udon Thani
Udon Thani2 stops£637
Chiang Rai
Chiang Rai3 stops£633
Khon Kaen
Khon Kaen2 stops£650
Hat Yai
Hat Yai2 stops£632
Ubon Ratchathani
Ubon Ratchathani2 stops£671
Trat
Trat2 stops£628

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

Tue, 28 Apr - Mon, 25 May
Air China Logo
22:40 - 00:10
LHR
-
BKK
19h 30m
1 stop
Air China Logo
01:30 - 17:40
BKK
-
LHR
22h 10m
1 stop
£435Air China
Wed, 29 Apr - Tue, 12 May
Air China Logo
20:25 - 00:10
LHR
-
BKK
21h 45m
1 stop
Air China Logo
01:30 - 17:40
BKK
-
LHR
22h 10m
1 stop
£436Air China
Wed, 29 Apr - Mon, 11 May
Air China Logo
20:25 - 00:10
LHR
-
BKK
21h 45m
1 stop
Air China Logo
19:35 - 17:40
BKK
-
LHR
28h 05m
1 stop
£436Air China
Sun, 26 Apr - Mon, 11 May
Air China Logo
22:40 - 00:10
LHR
-
BKK
19h 30m
1 stop
Air China Logo
19:35 - 17:40
BKK
-
LHR
28h 05m
1 stop
£437Air China
Sun, 30 Aug - Tue, 15 Sep
Qatar Airways Logo
09:30 - 06:20
LHR
-
BKK
14h 50m
1 stop
Qatar Airways Logo
20:00 - 06:25
BKK
-
LHR
16h 25m
1 stop
£445Qatar Airways
Wed, 29 Apr - Wed, 13 May
Etihad Airways Logo
21:10 - 18:30
LHR
-
HKT
15h 20m
1 stop
Etihad Airways Logo
08:55 - 18:45
HKT
-
LHR
15h 50m
1 stop
£498Etihad Airways
Thu, 30 Apr - Wed, 6 May
Etihad Airways Logo
09:15 - 07:50
LHR
-
HKT
16h 35m
1 stop
Etihad Airways Logo
09:25 - 18:45
HKT
-
LHR
15h 20m
1 stop
£500Etihad Airways
Sun, 24 May - Sun, 31 May
Emirates Logo
16:50 - 17:15
LHR
-
TDX
18h 25m
2 stops
Emirates Logo
17:50 - 14:25
TDX
-
LHR
26h 35m
2 stops
£806Emirates
Mon, 8 Jun - Tue, 16 Jun
EVA Air Logo
21:35 - 12:40
LHR
-
TDX
33h 05m
1 stop
EVA Air Logo
17:50 - 19:20
TDX
-
LHR
31h 30m
1 stop
£834EVA Air
Fri, 9 Oct - Thu, 5 Nov
EVA Air Logo
21:35 - 12:40
LHR
-
TDX
33h 05m
1 stop
EVA Air Logo
09:40 - 19:05
TDX
-
LHR
16h 25m
1 stop
£897EVA Air
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 Phuket City, at £607 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 £663.

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

The average price for all round-trip flights from London Heathrow Airport to Thailand depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Thailand is generally at night, when retur flights cost £743 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Thailand is generally in the evening, which is peak travel time and where the average cost of a ticket is £795.

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 £633, 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 May, when tickets cost £598 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of return tickets is £892 and £877 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 Tuesday 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 4 weeks before departure, which saves you about 9% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

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

Low seasonJune
Cheapest flight£289
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (25% more expensive on average)
Flight from London Heathrow Airport to Chiang Mai

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.

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 £549 one-way - £743 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 1409 reviews
8.7Crew
8.3Comfort
8.4Boarding
8.0Entertainment
8.1Food
Airline reviews

Again on this leg the WiFi wouldn't work. The seats were comfortable with adequate cushion and space between seats for my legs. Very nice 3-hour flight.

8.0 ExcellentChristine, Apr 2026
TPE - BKK
Read more EVA Air reviews

Again on this leg the WiFi wouldn't work. The seats were comfortable with adequate cushion and space between seats for my legs. Very nice 3-hour flight.

EVA canceled me out of the return flight from Manila to Spokane so we had to rebook and repay. Very unprofessional!! Still have not returned home!!

Crew are excellent. Food was good generally. Seats are small and there isn’t much leg room. Overhead bins are very small.

This flight was long and I am so thankful I had a seat in the back of the plane. As I usually must get up and stretch every hour . The crew were probably the most friendly I have flown with. Thanks and I will book again with Eva air. Food was ok too.

It was a pleasure to fly with EVA airlines from Taipei to San Francisco.

My seat arrangement was good with Eva Air. The toilet sanitary was good ( hand wash, face moist spraying, fresh air spray, hair moisturizer). But the Asian movie selection was not great at all.

Don’t preorder the diabetic meal if you don’t have to. Whoever creates those meals thinks everyone loves fish, and hates seasoning. In a world where we can find diabetic friendly candy and low card bread, it’s surprising that places are still serving flavorless gelatin and rice cakes. Boarding in Taipei was chaos. They tried to form a line but didn’t manage it. So once the gate was opened, the line didn’t matter and everyone just mobbed to the front.

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

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

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

You guys need to check with your sub contractors. I had a confirmation email from airfare I don’t know then when I reach at the airport the check in offer did not see the ticket in the system. I had to issue another ticket at double the normal rate because I had to travel on the same day.

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

The seat was uncomfortable for me, less leg space and a tight space.

Very good - could have been more proactive asking for drinks as only got one all flight offered.

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.

Man to Muscat the staff were poor. Missed bringing drinks to me & ran out of Beer. I didn't get a drink. Muscat to BKK staff excellent, food ok, and I was offered a drink.

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

Oman Air is on the relation Muscat-Salalah without any serious competition and that's to feel same as the metall bars of your seat in your backside after this flight. Don't expect anything other than being brought from A to B and you won't be disappointed

Everything was great in the business class. Seats 1A and 1C wouldn't recline properly. If i stood up then it did recline, even when the crew checked it he made me stand up recline it all the way and then he said "ok now you can sit" i just laughed it off.

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.

Excellent airline. The plane was clean and the staff were very attentive

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.

First off, it wasn't clear that my first flight was to be operated by IndiGO. While the flight itself was fine, this meant that my whole initial check in where I would've properly verified my seating on my Qatar flight/requested an upgrade was impeded by the fact that I had to check in with IndiGO. They said I would separately have to go to Qatar counter to deal with second flight leg issues, which was impossible given how long the check in took/no time available to do so.

Charged extra amount for the baggage wait. Even it’s less than 23kgs. Those machines are showing wrong weight and they were charging money wantedly from everyone.

This flight was a very good trip for us. The crew were very friendly and helpful. They made arrangements for my husband to have assistance in boarding. We were not expecting a meal, so it was a pleasant surprise on this short flight to have a meal and beverage from a very courteous crew.

Looks like a local flight. Food was horrible. No entertainment system.

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.

Dear Team, I purchased a full travel package that included 2 checked bags through you and JustFly. However, when I arrived at the airport, my ticket showed 0 checked bags. Since I was traveling internationally to India with 2 bags, It was a $200 per bag at the counter, which was extremely disappointing. For an international trip, why would I ever choose a no‑bag option for only $20–$30 less? This seems like an error in the booking process, and I am requesting clarification and a resolution. I have called JustFly and on phone for 1 hr :53 min and they couldn't help till I show some kind of proof etc which isn't possible but besides that love your service and using it for years !

Good one but just notice that you have to ask several time to get water or coffee .

Ethiad wanted to charge me $1100 for 2 checked bags on a ticket that was $550. Nother the airline or airfare assist was willing to help before arriving at the airport. All parties said it was the other responsibility to help. Never flying ethiad or using kayak again.

Good service. But on flight to Kochi no entertainment except in app. And no working outlets to charge phone.

Nice crew , clean cabin , food was delayed due to problem with the quantity .

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

I booked and paid for a Business Class seat for myself and my wife. 4 hours before the flight i get a call saying the plane they sent doesn't have the correct layout to accommodate all the business class seats they sold me 3 months earlier at a premium of $1500 a ticket. So they have to bump me from Business to Economy and will give me a $400 credit (total of $800 for both seats) that I could turn in at Abu Dahbi for $400 in US cash. They then promised a row that we could have to ourselves and the arm rests would go up so we could spread out for each of us. My wife was taken care of but I was put in the exit row with the flight attendents set as part of the three...and the arm rest did not go up. When we got to Abu Dahbi, they would not exchange our credit for cash as promised. Very disappointed they took my money 3 months ago and refused to reimburse for the change in seats or follow the promises made.

We have paid premium price for a business class Cabinet and we have received the old 777 with the following apart business class that is not to standard. It was very disappointing and it’s a very bad reputation for a premium airline company. This aeroplane should be the commission from being as a business class. We will pass this knowledge to our colleagues because the quality of business class in Etihad is not consistent and it is a lucky dip that sometimes you’re getting a good aeroplane and sometimes you’re getting their 30 years old aeroplane. The crew of the aeroplane have apologise and said that they hate this aeroplane and they have complained about it multiple times as well. Obviously Etihad is putting the economy in front of the Customer Experience. For the future we will not take this risk anymore and will fly with established company like emirates.

Etihad Check In counter/Station manager in Heathrow was bothering and not helpful at all. They are rude and not customer oriented

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

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

Information on your arrival and departure airports