£301 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 6/9. 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£473
Phuket City
Phuket City3 stops£535
Ko Samui
Ko Samui2 stops£703
Chiang Mai
Chiang Mai2 stops£613
Krabi
Krabi1 stop£589
Udon Thani
Udon Thani2 stops£682
Khon Kaen
Khon Kaen2 stops£666
Chiang Rai
Chiang Rai2 stops£802
Hat Yai
Hat Yai2 stops£759
Ubon Ratchathani
Ubon Ratchathani2 stops£1,061
Trat
Trat2 stops£608
Bangkok
Bangkok1 stop£473
Phuket City
Phuket City3 stops£535
Ko Samui
Ko Samui2 stops£703
Chiang Mai
Chiang Mai2 stops£613
Krabi
Krabi1 stop£589
Udon Thani
Udon Thani2 stops£682
Khon Kaen
Khon Kaen2 stops£666
Chiang Rai
Chiang Rai2 stops£802
Hat Yai
Hat Yai2 stops£759
Ubon Ratchathani
Ubon Ratchathani2 stops£1,061
Trat
Trat2 stops£608

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

Wed, 9 Sep - Tue, 6 Oct
Hainan Airlines Logo
22:00 - 10:00
LHR
-
BKK
30h 00m
1 stop
Hainan Airlines Logo
11:05 - 19:30
BKK
-
LHR
38h 25m
1 stop
£473Hainan Airlines
Sat, 19 Sep - Sun, 4 Oct
China Eastern Logo
21:20 - 04:05
LHR
-
BKK
24h 45m
1 stop
China Eastern Logo
05:05 - 18:40
BKK
-
LHR
19h 35m
1 stop
£473China Eastern
Tue, 3 Nov - Wed, 18 Nov
Air China Logo
17:40 - 18:05
LHR
-
BKK
17h 25m
1 stop
Air China Logo
01:30 - 17:50
BKK
-
LHR
23h 20m
1 stop
£474Air China
Thu, 29 Oct - Tue, 10 Nov
Air China Logo
20:25 - 00:10
LHR
-
BKK
20h 45m
1 stop
Air China Logo
01:30 - 17:50
BKK
-
LHR
23h 20m
1 stop
£475Air China
Thu, 5 Nov - Tue, 1 Dec
Air China Logo
20:25 - 00:10
LHR
-
BKK
20h 45m
1 stop
Air China Logo
01:30 - 17:50
BKK
-
LHR
23h 20m
1 stop
£476Air China
Mon, 7 Sep - Sun, 11 Oct
Qatar Airways Logo
09:30 - 07:35
LHR
-
BKK
16h 05m
1 stop
Qatar Airways Logo
03:00 - 14:05
BKK
-
LHR
17h 05m
1 stop
£479Qatar Airways
Sun, 15 Nov - Wed, 2 Dec
Etihad Airways Logo
20:55 - 18:05
LHR
-
KBV
14h 10m
1 stop
Etihad Airways Logo
08:40 - 06:40
KBV
-
LHR
29h 00m
1 stop
£589Etihad Airways
Mon, 2 Nov - Wed, 25 Nov
Etihad Airways Logo
20:55 - 18:05
LHR
-
KBV
14h 10m
1 stop
Etihad Airways Logo
08:40 - 06:40
KBV
-
LHR
29h 00m
1 stop
£595Etihad Airways
Tue, 1 Sep - Wed, 30 Sep
Qatar Airways Logo
09:30 - 17:15
LHR
-
TDX
25h 45m
2 stops
Qatar Airways Logo
17:50 - 13:15
TDX
-
LHR
25h 25m
2 stops
£692Qatar Airways
Tue, 1 Sep - Wed, 30 Sep
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
£895EVA 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 £748 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 5 days was £778.

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 £795 on average. Morning departures are around 12% more expensive than evening flights, on average. The most expensive time of day to fly to Thailand is generally in the morning, which is peak travel time and where the average cost of a ticket is £908.

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 £597 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £944 and £895 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, Monday 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 6 weeks before departure, which saves you about 11% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

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

Low seasonJune
Cheapest flight£301
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (31% more expensive on average)
Flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport

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 £569 one-way - £845 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 1484 reviews
8.7Crew
8.1Food
8.4Boarding
8.0Entertainment
8.3Comfort
Airline reviews

I put the review all together for the first review

6.0 GoodRichard, Apr 2026
TPE - BKK
Read more EVA Air reviews

I put the review all together for the first review

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.

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.

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

Excellent food. Good service. Crammed Premium Economy seats. I Asked to change seats during check in. They told me the flight was fully booked. But on board I saw empty seats where I could have been easily relocated.

Good. Please add a non- applicable category to your questions.

Amazing crew, excellent food, business class seats seem a bit dated but are super comfy even for a very tall person. If continuing onto Taipei, the stopover in Bangkok is a bit annoying (queue at security) though the lounge is decent.

Boarding is fast and easy for economy class, food was ok baggage policies are good

Everything was fantastic! It was a short flight but the crew really went above and beyond to make it a great flight. I felt cared for with EVA.

Delayed due to no fault of flight crew. Efficient and worked well together.

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.

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.

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.

Although a short regional flight, Oman Air continues to provide excellent service, and personal attention. I always find the Oman Air leg of an international flight less stressful and more personable.

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".

Omar airways mishandled my baggage, it took me 2 weeks to get my baggage back. It's been delivered to someone else.

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

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

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.

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😉

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

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

Delayed flight in Singapore caused the transfer at Bangkok to be very stressful. Fortunately, no elderly were in this trip, else it will not be possible to catch the connecting flight. There were also several occasions throughout the flight journey where some of the passengers were not wearing their seat belts despite several remainders from the stewardess.

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

I couldnt go on this flight and lost all my money over 1,000 UK Pounds as my visa to Myanmar was not accepted :(

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.

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.

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 rows of seats in economy class are seriously close to one another making eating and resting just about impossible - there is hardly any legroom. Anyone larger than average size would have an incredibly uncomfortable flight. I had to basically share my seat with the lady passenger next to me as she was too big to fit into her allotted seat.

Food was good, attendants were friendly. Seats were not comfortable. Did not receive any amenities such as eyemask or earplugs that would have helped sleep. Additionally a large group of passengers boarded very late into boarding and were a disruption for almost the whole flight. Flight attendants did their best but the kids were making so much noise, kicking seats, and half the time no adult was sat with them so they weren’t being managed.

I staff or crew they were very friendly and humbly, they done theirs service very well, I appreciate them and thank you to the company or Qatar 🇶🇦 Government for providing as good service in their flight ,once again, thank you 😊 🙏 😀 😉 👍

Crews are very rude and unhelpful. Cramped seats in economy. Foods are useless

Lovely aircraft and I flight entertainment. Good leg room. Full flight crew struggled a bit

Food not good as good as last time flew with them

Seats very uncomfortable, impossible to sleep. Food average, bakery items not fresh. Pockets in seats not large enough to hold a book and a few other items. Cabin temperature too cold, even with blanket. Good selection of movies. Other than that 12 hours of torture!

I booked tickets for a family of five and specifically paid extra to select our seats together. We spent nearly $1,000 extra (around $100 per seat) for extra legroom so we could sit near each other. However, despite paying for this, we ended up being separated on the flight. This caused a major issue for our family because my parents do not speak English and rely on me to translate and assist them during the journey. I do not understand why Etihad changed our reserved seats without explanation. I am extremely dissatisfied with this experience. I expect the airline to do better, and I am requesting a full refund for the seat selection fees we paid.

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

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

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

The business class experience is fantastic. The crew were polite but often unavailable even when I tried to call them! I even found myself bringing my used dishes and cutlery up to the crew because no one had come to collect it after over an hour.

The staff was very nice and polite but it was very very hot and no ways to have some fresh air. It would be nice to have more time to sleep since it was a night flight

Very very bad service very tight seats never ever flying with Etihad again

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

Information on your arrival and departure airports