£177 Find Cheap Flights from Thailand to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Heathrow departing on 15/3. 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

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to London
These are the airlines KAYAK users have selected most often from within our search results for flights to London
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Everything you should know

Cheapest return fare
£455
Typical prices: £654-£804
Multiple Airlines
Thu 28/5Sun 31/5
BKK - LHR • 2 stops
Cheapest direct flights
£732
Typical prices: £771-£1,054
EVA Air
Mon 19/1Fri 23/1
BKK - LHR • Direct
Top airlines
Thai Airways
Most flights • 14 per week
EVA Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 11% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Thailand to Heathrow

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

Thu, 28 May - Sun, 31 May
Multiple Airlines Logo
11:05 - 19:30
BKK
-
LHR
38h 25m2 stops
Multiple Airlines Logo
21:20 - 20:55
LHR
-
BKK
17h 35m1 stop
£455Multiple Airlines
Thu, 2 Apr - Mon, 6 Apr
Multiple Airlines Logo
19:20 - 19:30
BKK
-
LHR
30h 10m2 stops
Multiple Airlines Logo
06:40 - 14:10
LHR
-
BKK
25h 30m2 stops
£457Multiple Airlines
Thu, 28 May - Thu, 18 Jun
Multiple Airlines Logo
11:05 - 19:30
BKK
-
LHR
38h 25m2 stops
Multiple Airlines Logo
21:20 - 04:05
LHR
-
BKK
24h 45m1 stop
£459Multiple Airlines
Sun, 15 Feb - Sun, 22 Feb
Etihad Airways Logo
08:50 - 06:40
CNX
-
LHR
28h 50m1 stop
Etihad Airways Logo
20:55 - 06:10
LHR
-
CNX
26h 15m1 stop
£557Etihad Airways
Tue, 3 Mar - Fri, 13 Mar
Etihad Airways Logo
08:50 - 14:30
CNX
-
LHR
36h 40m1 stop
Etihad Airways Logo
19:20 - 06:10
LHR
-
CNX
27h 50m1 stop
£582Etihad Airways
Tue, 3 Mar - Sat, 7 Mar
Emirates Logo
12:00 - 16:10
KBV
-
LHR
35h 10m1 stop
Emirates Logo
20:20 - 11:00
LHR
-
KBV
31h 40m1 stop
£682Emirates
Tue, 3 Mar - Sat, 7 Mar
Emirates Logo
12:00 - 11:40
KBV
-
LHR
30h 40m1 stop
Emirates Logo
15:50 - 11:00
LHR
-
KBV
36h 10m1 stop
£683Emirates
Wed, 28 Jan - Wed, 25 Feb
EVA Air Logo
07:15 - 19:05
USM
-
LHR
18h 50m1 stop
EVA Air Logo
21:20 - 18:40
LHR
-
USM
14h 20m1 stop
£896EVA Air
Wed, 28 Jan - Wed, 25 Feb
EVA Air Logo
07:15 - 19:05
USM
-
LHR
18h 50m1 stop
EVA Air Logo
21:20 - 21:20
LHR
-
USM
17h 00m1 stop
£918EVA Air
Mon, 9 Mar - Wed, 11 Mar
Qatar Airways Logo
15:35 - 06:25
USM
-
LHR
21h 50m2 stops
Qatar Airways Logo
08:05 - 10:40
LHR
-
USM
19h 35m2 stops
£1,054Qatar Airways
Booking Insights

KAYAK's insights & trends for flights to Heathrow

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to London Heathrow Airport, 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 to London Heathrow Airport is November, where tickets cost £667 on average for one-way flights. On the other hand, the most expensive months are April and August, where the average cost of tickets from Thailand is £833 and £791 respectively. For return trips, the best month to travel is November with an average price of £667.

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

If you’re looking for cheap airfare to London Heathrow Airport, 25% of our users found tickets to London Heathrow Airport for the following prices or less: From Bangkok Suvarnabhumi Airport £381 one-way - £753 return.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to London Heathrow Airport, 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, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 56 days before departure.

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

Low seasonFebruary
Cheapest flight£177
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly and prices are also 13% lower on average.
Flight from Bangkok Suvarnabhumi Airport to London Heathrow Airport

FAQs - booking London Heathrow Airport flights

  • How far is London Heathrow Airport from central London?

    London Heathrow Airport is 14 miles from the centre of London.

  • How much is a flight to London?

    On average, a flight to London costs £577. The cheapest price found on KAYAK in the last 2 weeks cost £333 and departed from Bangkok Suvarnabhumi Airport.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Thursday where tickets can be as cheap as £640. On the other hand, the most expensive day to fly is Monday, where prices are £767 on average.

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

    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 to London Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport 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 to London Heathrow Airport?

    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 to London Heathrow Airport 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 London Heathrow Airport?

    The cheapest time of day to fly to London Heathrow Airport is generally in the morning, when flights cost £756 on average. The most expensive time of day to fly to London Heathrow Airport is generally at night, which is peak travel time and where the average cost of a ticket is £830.

Top tips for finding cheap flights to London Heathrow Airport

  • Looking for cheap airfare to London Heathrow Airport? 25% of our users found round-trip tickets to London Heathrow Airport for the following prices or less: Cheap flights to London Heathrow Airport from Bangkok Suvarnabhumi £786
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

Reviews of the top 5 airlines flying from Thailand to Heathrow

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Thailand to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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.
8.4
EVA AirOverall score based on 1306 reviews
8.0Entertainment
8.6Crew
8.1Food
8.4Boarding
8.3Comfort
Airline reviews

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

8.0 ExcellentAnonymous, Dec 2025
CNX - TPE
Read more EVA Air reviews

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

everything was so good! Especially Food. It was the best I've ever had! However,I requested to add mileage point to Star alliance group ANA; it hasn't been added yet.... 😞

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.

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

The food from Los Angeles to Taipei made me throw up. The flight is also not comfort. But the staffs are very friendly and nice.

Sub sandwhich for a snack through mid flight and giving a bottle water was a good idea

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.

seats are pitched well. you don't feel too tight.

Check in process in Manila was so slow. From the time we got in line to reaching the counter we could have arrived at Taipei even if the flight was delayed for half hour.

in today's time, an airline like emirates didnt serve drinks as requested, Excuse was full flight.

Great flight - Clubhouse met our needs, and the staff provided good service. Boarding felt a little chaotic, but given the size of the aircraft, it's always going to be challenging. Whilst the crew were friendly, the number of passengers meant that we received our breakfast items, but had finished breakfast before we were served a drink. Lunch was much better organised, and throughout the flight, the crew were attentive. Found the seats and ICE to be excellent. Disembarkation was fine, and everything possible to expedite the process was being done.

Bathrooms were amazing and first class seat was very comfortable. Food was edible but not up to the standards of other first class meals on other airlines. But Caviar was amazing! So much caviar. Dom Perignon 2015 was room temperature. It would have been amazing if it was chilled down a bit more. Slippers were amazing and amenity kit requested was beautiful. Requested Pajamas never came so can’t tell you how nice they were. Loved the design of the seat and personal storage. Suite was much smaller than other airline’s first class and tv screen was tiny and remote difficult to use. I probably wouldn’t pay for this flight again.

The 2 sockets near me didjt work i had my phone by end of the flight on low bat and had issues to book uber thereafter Electrical sockets should work if emirates does not allow batteries Baggage claim in zurich took very long

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

The queue for checking for economy passengers was enormous! Only one desk open for economy faith s queue a mile long, whilst business and first class desks empty and unemployed. Will seriously consider changing to another next trip. Disappointed customer.

Very pleasant.The crews are very helpful.Food are very good.

They should resume the fast track for business / first class passengers

Emirates is superb service. The A380 was very comfortable. The cabin crew is really helpful

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.

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).

You are the best, keep up the good work. Thank you for allowing me and my family to fly with comfort.i am waiting for upgrade some day. Thanks again

Friendly and discreet staff. Could have done with a few more offers of water/snacks overnight. Movie and tv selection notably poor. Seats not especially comfortable

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

I appreciated the vailability of wheelchair services for persons with mobility issues all the way up to the aircraft. What could be better would be the food choices.

It was little disheartening and disappointing. Although flight staff did a good job. But customer service didn’t do anything to resolve my issue.

Plane was good Crew was good Food was just ok Could have had more entertainment options But overall good

As good as you can expect an economy flight from Europe to Australia to be. Nothing agains Qatar, just feels like every new generation of plane gets tighter.

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Good. It would be great if comfort seats were available

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.

There was not any issues with the Etihad Airways. Staff was excellent and I love the variety of movies and games that they provided.

It was fantastic. The flight from Chicago to Abu Dahbi was fantastic. The crew, food and service were amazing. Everything was handled by the crew member assigned to us , Nicholas, was usually done before we asked for it. Highly recommend Etihad!

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

1 hour flight. No complaints. Some drinks would have been nice.

Crew was amazing as usual. Very comfortable for a 13hour flight. Check in at ATL was terrible. Ticket counter charged me $200 for a small bag. Apparently Kayak sold me a zero luggage ticket. No carry on no checked. So the check in desk charged me a bullshit $200 dollar fee for a small gym bag weighing less than 20lbs. In true 3rd party ticket buying. This will turn into a finger pointing process between Kayak and Etihad. Now I'm going to have to ship my bag back in the mail a day ahead of my return flight.

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

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

Very delayed and uncomfortable seats. Nothing written in Urdu for Pakistanis. Tons of Pakistanis use the airline they should ensure the airline is accommodating them properly.

We booked a business class ticket via Underpricer. Somehow they screwed up our ticket from Abu Dhabi to Ahmedabad. We will be hesitant to book again with them.

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