£276 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 1/4. 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.
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Best Thailand Flight Deals from Heathrow

Cheapest return prices found by our users on KAYAK in the last 72 hours

Bangkok
Bangkok1 stop£410
Phuket City
Phuket City1 stop£406
Koh Samui
Koh Samui2 stops£665
Chiang Mai
Chiang Mai1 stop£437
Krabi
Krabi2 stops£640
Udon Thani
Udon Thani2 stops£763
Chiang Rai
Chiang Rai2 stops£613
Hat Yai
Hat Yai2 stops£698
Ubon Ratchathani
Ubon Ratchathani2 stops£874
Trat
Trat2 stops£788

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

Low season

June

High season

December

Cheapest flight

£276
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (23% 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.

See more FAQs

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 £495 one-way - £706 round-trip
  • Book at least 1 week before departure in order to get a below-average price for flights from London Heathrow Airport to Thailand.
  • High season is considered to be January, November and December. The cheapest month to fly from London Heathrow Airport to Thailand is May.
  • Morning departure is around 15% cheaper than an evening flight, on average*.
  • 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.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving 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.
8.4
EVA AirOverall score based on 1246 reviews
8.0Entertainment
8.2Comfort
8.4Boarding
8.6Crew
8.0Food
Airline reviews

Great but I am not sure why I was placed in zone 4 for boarding despite being an Infinity Member??? Can you explain online. Thanks

10.0 ExcellentM, Jan 2025TPE - SEA
Read more EVA Air reviews

Great but I am not sure why I was placed in zone 4 for boarding despite being an Infinity Member??? Can you explain online. Thanks

I was sleep when they brought the food. They had put a note on my seat. There was no food when I asked for food later. There was just one main meal served in this 14 hours flight. They offered me sandwich with ham which I don’t eat since I am pescatarian. Long story short I had to wait to get to TPE to get something to eat. I am extremely disappointed from the service. I have been flying EVA since I was 1 year old. Perhaps no more EVA for me. Seems EVA glorious day is long gone

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.

The boarding was organized and efficient. The crew was very thoughtful and did not wake me up when meals were served. I was totally exhausted after 2 weeks of vacation with a tour group. So sleep was more important to me. The crew just left me a sticker telling me that food had been served and if I woke up hungry to contact the crew. I did have the last meal scheduled on board. Food was very mediocre. The scrambled egg and minced meat were too salty. The porridge was passable. I was disappointed because I have high expectations of food from Taiwan. I thought EVA being a Taiwan based airline would have served its customers better tasting food.

basic and only minimum of service, they offer nothing special

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

The staff was marvelous. The entertainment options were terrible, old or 2nd rate movies. I was unable to entertain myself for 18 hours-it made it seem even longer. Note: I thought about upgrading but your information about what was included was unclear. Are the seats bigger? Are there current moves? What kind of food do you get? Would the upgrade compare to Delta? Just saying the upgrade is better didn’t convince me and I regret not flying Delta.

Crew's attitude can be better. I asked one crew member to help to put carry on baggage into overhead bin, but he was not willing to help. I needed help because my height is short. His attitude was bad.

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.

On time service. Seat comfort and the crew service very good .

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.

Entertainment is limited with a relatively old catalogue. Wi-Fi never works and the cabin and lavatory had evidence of a lot of scuff marks and temporary repairs. Nothing unsafe, but a bit tatty in places.

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.

USB charging port was not working at my seat 48K.

I enjoy flying with Thai Airways, however their B788 business class configuration is quite dated. Additionally , while the service is always friendly and efficient, I’m getting tired of the same “usual suspects” when it comes to food choices. Since it was a lunchtime flight, what about some gourmet sandwiches or some type of salad dish for the main course? The entertainment options are also quite limited and this is not unique to TG, so much so that given the short duration of the flight I ended up not bothering with any entertainment. Finally, despite signs around the cabin advising wifi available, I was unable to con-net and in fact I’ve never been able to connect on any TG flight over the last year or so - what’s the go here??

Always liked Thai Airways but in the past they have been very expensive, not being a millionaire just yet, I will use cheaper airlines. Bangkok to London £370 11 hours 45 mins. Old plane but ok. Lovely ladies on board, very polite. Food was ok. Will always use them if the price is right.

Could have been better. I prefer Thai airlines only but it hasnt been reliable.

Service on board was excellent. Flight attendant was very helpful. I wish the website is more functional. I can't even choose seats online and had to call the customer service. During check-in at the counter in CGK, I saw a printed page about paying for the bulkhead and exit row seats, so I asked the staff at the check-in counter. I was told that the flight is full and there isn't any seats available for paid upgrade. When I boarded the plane, I saw so many bulkhead and exit row seats empty and asked the flight attendant. He allowed me to purchase the upgrades on board. It would have been nice if I could purchase the upgrades ahead of time, eg. During online check-in or bag drop at the airport. The economy seats in the A350-900 are arranged in 3-3-3 configuration. Seat width is a bit tight for me.

Overall things were very good and orderly. The food was very good but I want able to get a second drink very easily, so that could have been better for services. The seats seemed to be lacking legroom but I'm also 6'1" so I'm used to wanting more legroom but the plane seemed smaller then others when it came to legroom. My kids all enjoyed the entertainment as did I so that was perfect!

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.

Seating is terrible, having seats so crammed is unacceptable for a 15-hour journey. I cannot stress enough how uncomfortable it is to sit in such an aircraft. Leg space is roomier in a domestic aircraft. I have not experienced this kind of crammy seating in domestic flights either in the US or other international airlines overseas.

Qatar Airways in-flight first/business class service is superior to any US airline; excellent meals are served on short haul flights such as between DXB and DOH.

Do not overbook flights and kick out confirmed ticketed passengers :-(

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.

Noice cancelling headphones would be better since it’s a crowded plane And kids behaviors are unavoidable

As gold member there is no priority checkin. Meaning you either have to board with your zone or last with business class pax. As economy pax all the baggage bays are filled by the time you arrive

Staff was very friendly. There is no on board entertainment, but it’s such a short flight that it doesn’t matter. We also got a meal which was nice and unexpected due to the length of the flight.

Flight was fine overall. What you would expect from economy seats. I did appreciate the amenities (eyemask, earplugs, small toothbrush and toothpaste, thin socks).

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 😊 🙏 😀 😉 👍

Used to Etihad employees are very rude and unprofessional but now better than before over all is okay now

Likes: on time departure, new plane Didn’t like:very poor quality food, very limited entertainment.no amenity kit etc.

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.

The seat was like there is no leg space....there were no proper option for food in the airline. It seemed like the airline was at brink of bankruptcy. The crew was helpful except for a few.

Needs better seat for business class. My seat was falling apart. Also no WiFi on that flight

Good. The food was very bad. Except for the chicken rice, rest of the dish went to trash.

The flight was delayed which cause me to miss my connecting flight in AbuDhsbi airport.

Liked leg room Disliked unable to book to sit with my family on same flight without paying extra

Lovely crew - comfortable journey despite it being an older plane.

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.

Communication between the captain/crew and the passengers needs to be improved.

Food and service are good. Bathroom was lack of lotions and cleaning. That should be improved.

Food & service very good next I will pick up again

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced.

Everything was not satisfactory - the flight was delayed, staffs were ok but they didn't speak English well. I am from east Asia (not Chinese) and they didn't care enough to remember that I wasn't Chinese but persistently spoke chinese to me. The flight announcement in english wasn't clear to understand.

I wish I had been able to choose a vegetarian meal. Crew friendly and helpful. Seat was ok. All quite efficient and pleasant. Would recommend for inner China travel for sure.

The flight is not bad, but the Business Lounge is not big enough for the quantity of people they accept and there is a limited options for food and beverages.

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

We bought premium Economy, thinking it would be more comfortable, but the seat is so narrow ,that my legs and feet are swollen , I can't wear shoes !

Book cheap flights from London to Thailand

Cheapest flights to Thailand from London found in 2025

Recent return flight deals

25/2Tue
1 stopAir China
39h 50mLHR-HKT
5/3Wed
1 stopAir China
36h 40mHKT-LHR
£406
1/3Sat
1 stopAir China
37h 05mLHR-HKT
31/3Mon
1 stopAir China
36h 15mHKT-LHR
£410
4/3Tue
1 stopEtihad Airways
19h 40mLHR-BKK
13/5Tue
1 stopEtihad Airways
16h 10mBKK-LHR
£536
1/5Thu
1 stopEtihad Airways
20h 00mLHR-BKK
11/6Wed
1 stopEtihad Airways
18h 30mBKK-LHR
£538
17/4Thu
1 stopThai Airways
16h 20mLHR-KBV
30/4Wed
1 stopThai Airways
15h 40mKBV-LHR
£733
14/5Wed
1 stopEVA Air
15h 35mLHR-CNX
2/7Wed
1 stopEVA Air
29h 25mCNX-LHR
£781
6/3Thu
1 stopThai Airways
15h 15mLHR-KBV
21/3Fri
1 stopThai Airways
17h 10mKBV-LHR
£782
4/3Tue
2 stopsEmirates
21h 35mLHR-CNX
26/3Wed
2 stopsEmirates
27h 25mCNX-LHR
£835
25/4Fri
1 stopEVA Air
16h 55mLHR-USM
9/5Fri
1 stopEVA Air
16h 40mUSM-LHR
£844
8/3Sat
2 stopsEmirates
30h 20mLHR-CNX
25/3Tue
2 stopsEmirates
27h 25mCNX-LHR
£856

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Recent one-way flight deals

1/4Tue
1 stop
17h 55mLHR-BKK
£276
31/3Mon
1 stop
29h 25mLHR-BKK
£280
20/2Thu
1 stopAir China
31h 55mLHR-BKK
£302
10/3Mon
2 stopsAir China
36h 05mLHR-HKT
£303
7/3Fri
1 stopThai Airways
15h 15mLHR-KBV
£486
31/3Mon
1 stopThai Airways
15h 35mLHR-HKT
£499
8/3Sat
2 stopsEtihad Airways
29h 25mLHR-KBV
£532
7/3Fri
2 stopsEtihad Airways
41h 20mLHR-KBV
£537
17/2Mon
1 stopEVA Air
16h 25mLHR-USM
£568
19/5Mon
1 stopEVA Air
18h 00mLHR-USM
£575

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Last minute flights from Heathrow to Thailand

Last minute flight, train and bus deals

18/1Sat
multi-stopShenzhen Airlines
21h 55mLHR-BKK
9/2Sun
multi-stopShenzhen Airlines
28h 50mBKK-LHR
£429
18/1Sat
multi-stopShenzhen Airlines
21h 55mLHR-BKK
14/2Fri
multi-stopShenzhen Airlines
30h 40mBKK-LHR
£430
18/1Sat
multi-stopAir China
31h 55mLHR-BKK
1/4Tue
multi-stopAir China
28h 10mBKK-LHR
£452
15/1Wed
multi-stopAir China
23h 30mLHR-BKK
12/2Wed
multi-stopAir China
36h 50mBKK-LHR
£460
18/1Sat
multi-stopGulf Air
26h 20mLHR-BKK
25/1Sat
multi-stopGulf Air
26h 20mBKK-LHR
£622
18/1Sat
multi-stopGulf Air
26h 20mLHR-BKK
4/5Sun
multi-stopGulf Air
17h 15mBKK-LHR
£703
18/1Sat
multi-stopEtihad Airways
19h 40mLHR-HKT
31/1Fri
multi-stopEtihad Airways
27h 35mHKT-LHR
£856
19/1Sun
multi-stopEmirates
40h 15mLHR-HKT
23/1Thu
multi-stopEmirates
22h 00mHKT-LHR
£860
18/1Sat
multi-stopEtihad Airways
19h 40mLHR-HKT
28/1Tue
multi-stopEtihad Airways
23h 40mHKT-LHR
£875
19/1Sun
multi-stopEmirates
22h 25mLHR-HKT
27/1Mon
multi-stopEmirates
23h 00mHKT-LHR
£884

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

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