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Cheap flights from London Heathrow Airport to Bangkok from £333

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
21 Jan — 28 Jan1
1 adult

The best prices from London Heathrow to Bangkok are usually found in May or September, booked 42 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Heathrow to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 January 2025.

Round-trip from

£498

One-way from

£333

Popular in

December

Cheapest in

May

Average price

£740
China Eastern
  • China Eastern
  • 31/1-12/2
  • 2 total stops
  • 51h 20m total
  • London to Bangkok
7/2
  • 7/2
  • 3 total stops
  • 42h 55m total
  • London to Bangkok
High demand for flights, 5% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for round-trip flights in January 2025

Find flight deals from Heathrow to Bangkok

Cheapest flights from Heathrow to Bangkok
Explore the most affordable flight options available from Heathrow to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 January 2025.

Sat 18/121:00LHR - BKK
1 stop20h 55mChina Eastern
Thu 6/201:55BKK - LHR
1 stop22h 35mChina Eastern
Deal found 15/1£498
Sat 18/121:35LHR - BKK
1 stop31h 55mAir China
Tue 25/201:30BKK - LHR
1 stop21h 25mAir China
Deal found 15/1£499
Fri 14/308:45LHR - BKK
1 stop22h 20mAir India
Tue 18/314:35BKK - LHR
1 stop27h 30mAir India
Deal found 15/1£501
Thu 30/122:00LHR - BKK
1 stop17h 30mChina Southern
Sun 2/312:45BKK - LHR
2 stops36h 10mChina Southern
Deal found 15/1£501
Wed 22/121:10LHR - BKK
1 stop21h 55mShenzhen Airlines
Sun 9/221:20BKK - LHR
1 stop28h 50mShenzhen Airlines
Deal found 15/1£505
Wed 19/221:30LHR - DMK
2 stops32h 10mMultiple Airlines
Wed 26/206:10DMK - LHR
2 stops42h 45mMultiple Airlines
Deal found 15/1£505
Wed 15/111:30LHR - BKK
1 stop14h 45mAir France
Wed 29/110:10BKK - LHR
1 stop18h 15mAir France
Deal found 15/1£527
Fri 7/321:00LHR - BKK
2 stops38h 05mHainan Airlines
Wed 19/319:10BKK - LHR
2 stops53h 25mHainan Airlines
Deal found 15/1£528
Wed 22/1022:05LHR - BKK
1 stop29h 50mGulf Air
Wed 29/1019:15BKK - LHR
1 stop18h 20mGulf Air
Deal found 15/1£531
Fri 21/221:00LHR - BKK
2 stops30h 05mMultiple Airlines
Tue 4/302:10BKK - LHR
1 stop23h 05mMultiple Airlines
Deal found 15/1£537
Thu 8/509:30LHR - BKK
1 stop32h 25mEtihad Airways
Sat 24/502:45BKK - LHR
1 stop34h 00mEtihad Airways
Deal found 15/1£547
Wed 10/909:30LHR - BKK
1 stop38h 00mFinnair
Tue 14/1007:05BKK - LHR
1 stop38h 05mFinnair
Deal found 15/1£551

Find flights from Heathrow to Bangkok within your budget

Customise your flight search to find flights from Heathrow to Bangkok that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 16 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 31/1

21:00-12:20

1 stop32h 20m

Bangkok Suvarnabhumi

Wed 12/2

01:55-13:55

1 stop19h 00m

£498

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 2/2

17:40-21:30

1 stop20h 50m

Bangkok Suvarnabhumi

Wed 5/3

17:55-19:40

1 stop32h 45m

£499

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 14/3

08:45-14:05

1 stop22h 20m

Bangkok Suvarnabhumi

Tue 18/3

14:35-11:05

1 stop27h 30m

£501

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 30/1

22:00-22:30

1 stop17h 30m

Bangkok Suvarnabhumi

Sun 2/3

12:45-17:55

2 stops36h 10m

£501

LondonBangkok

LHR - DMK

LHRDMK

London Heathrow

Wed 19/2

21:30-12:40

2 stops32h 10m

Bangkok Don Mueang Intl

Wed 26/2

06:10-17:55

2 stops42h 45m

£505

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 10/2

21:00-10:05

2 stops30h 05m

Bangkok Suvarnabhumi

Thu 20/2

11:10-17:35

2 stops37h 25m

£507

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 10/2

21:10-18:30

1 stop38h 20m

Bangkok Suvarnabhumi

Sun 2/3

19:30-19:10

1 stop30h 40m

£515

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 21/2

21:00-10:05

2 stops30h 05m

Bangkok Suvarnabhumi

Wed 5/3

11:25-18:15

1 stop37h 50m

£537

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 4/5

10:00-09:55

1 stop17h 55m

Bangkok Suvarnabhumi

Mon 9/6

19:40-06:55

1 stop17h 15m

£540

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 24/4

20:55-23:55

1 stop21h 00m

Bangkok Suvarnabhumi

Mon 19/5

02:45-18:45

1 stop22h 00m

£542

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 31 results
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Best time to book a flight from Heathrow to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Heathrow to Bangkok

Get recent, data-driven insights about flights from Heathrow to Bangkok including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Heathrow Airport to Bangkok?

Use this chart to determine the optimal time to book a return flight from Heathrow to Bangkok. Price data was last updated on 10 January 2025.

The price you pay for your flight from London Heathrow Airport to Bangkok may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to Bangkok?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok (average of £791). Flying from London Heathrow Airport to Bangkok in December is currently the most expensive (average of £1,123). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to BKK?

Find hourly flight availability from Heathrow to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 January 2025.

It’s optimal to fly from London Heathrow Airport to Bangkok in the afternoon. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from London Heathrow Airport to Bangkok?

Use this chart to determine the cheapest time to fly return from Heathrow to Bangkok. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Bangkok flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London Heathrow Airport to Bangkok

Explore weekly flight availability from Heathrow to Bangkok. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 January 2025.

The most flights from LHR to TH1 are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Bangkok by month

Plan your trip to Bangkok by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bangkok ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Bangkok when rainfall is around 10.0 mm.

Temperature in Bangkok by month

Plan your trip to Bangkok by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bangkok, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bangkok. Reviews last updated 16 January 2025.
See what other customers who have flown with China Eastern, Air China and China Southern from London to Bangkok have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
1,327 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Crew

8.6

Food

7.7

Overall

8.1

Reviews

1 / 10

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

8.1
Very Good
1,327 reviews
8.1
Very Good
1,327 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Crew

8.6

Food

7.7

Overall

8.1

Reviews

1 / 10

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

7.8
Good
337 reviews
8.1
Very Good
1,327 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Crew

8.6

Food

7.7

Overall

8.1

Reviews

1 / 10

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

7.5
Good
823 reviews
8.1
Very Good
1,327 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Crew

8.6

Food

7.7

Overall

8.1

Reviews

1 / 10

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

7.5
Good
3,752 reviews
8.1
Very Good
1,327 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Crew

8.6

Food

7.7

Overall

8.1

Reviews

1 / 10

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Bangkok. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines flying from London Heathrow Airport to Bangkok round-trip?

    Flying on China Eastern is currently your cheapest option to Bangkok, with prices starting at £498. Additional return tickets that might be worth considering are offered by Air China and Air India, with the lowest prices starting at £499 and £501, respectively. Users have found that China Eastern is 34% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to Bangkok one-way?

    One-way options have recently been found by users for as low as £334 on Gulf Air. Other airlines that offer cheap prices include Hainan Airlines from £335 and Shenzhen Airlines from £342 one-way.

  • What are the most reliable airlines from London Heathrow Airport to Bangkok?

    Before booking your flight to Bangkok from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (69%), Thai Airways (62%), EVA Air( 52%).

  • What are the cheapest flights from London Heathrow Airport to Bangkok?

    On average you can expect to pay £2,415 for a flight from London Heathrow Airport to Bangkok. The cheapest flight overall is £386 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £1.

  • Where are the most common stopover locations when flying from London Heathrow Airport to Bangkok?

  • What are some popular points of interest to see during a stopover in Abu Dhabi?

    Etihad Towers, Sheikh Zayed Mosque, and Yas Waterworld are the most popular attractions in Abu Dhabi if you're in need of something to do during your stopover. Travellers on a stopover in Abu Dhabi can visit Etihad Towers, Sheikh Zayed Mosque, and Yas Waterworld, by travelling 20.8 mi, 11.2 mi, and 5.0 mi, respectively after landing at Abu Dhabi Zayed Intl. Those on a stopover in Abu Dhabi in need of a car hire can book one at Abu Dhabi Zayed Intl for about £28.

  • What are points of interest worth seeing during a stopover in Beijing?

    Summer Palace, Forbidden City, and Bell and Drum Towers are currently the most popular points of interest in Beijing. Summer Palace, Forbidden City, and Bell and Drum Towers can be visited by travelling about 17.3 mi, 15.1 mi, and 13.9 mi respectively from Beijing Capital.

  • Where are the least popular stopover locations for London Heathrow Airport to Bangkok flights?

  • Can I find deals for flights from Heathrow to Bangkok that include hotel bookings?

    Yes. In addition to deals on Heathrow to Bangkok flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Bangkok?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Bangkok.

  • Can I find deals for business class flights from Heathrow to Bangkok?

    Yes. Cheapflights offers flight deals from Heathrow to Bangkok by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Bangkok?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok (average of £791). Flying from London Heathrow Airport to Bangkok in December is currently the most expensive (average of £1,123). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

  • What are the most eco-friendly airlines from Heathrow to Bangkok?

    There are a couple of options for flights from Heathrow to Bangkok for sustainable travel. Some great options to travel with are KLM, Finnair, Etihad, and Qatar Airways. If you fly with KLM, you will be flying with one of the most eco-friendly airlines in the world. KLM has a carbon emission reduction programme that has been helping the environment by reducing fuel, replacing fossil fuels, and offsetting Carbon Dioxide Emissions. Finnair is another great choice for eco-friendly travel. This airline has been making aircraft that are more fuel-efficient and use more bio-fuel in their planes. Qatar Airways allow passengers to contribute to the Carbon Offset Programme they have created. If you fly with Etihad, you will be flying with an airline that is in the process of making environmentally-friendly fuel so that they have zero carbon emissions by the year 2050.

  • How to fly more sustainably from Heathrow to Bangkok?

    There are many ways you can travel more sustainably when you fly. One of the best ways is to travel in Economy Class. The seats in this class take up less space, creating more room for more seats. The fewer trips a plane has to make, the better it is for the environment. Taking a direct flight or a flight with only one stopover is another great option, as it saves a ton of fuel. Packing a light bag makes the plane lighter. So if you have the option, don’t overpack to save fuel. Flying with an environmental airline is always recommended. So fly with KLM, Finnair, Etihad or Qatar Airways.

See more FAQs

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Top 10 airlines flying from Heathrow to Bangkok

Discover the top 10 airlines that operate flights from Heathrow to Bangkok. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 16 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Shenzhen AirlinesCheapest£419Average£469FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Hainan AirlinesCheapest£446Average£500FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£493Average£895FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Air FranceCheapest£529Average£790FlexibilityNo cancel feeOn-time77%
Search Air France flights
SAUDIACheapest£529Average£617FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
KLMCheapest£535Average£797FlexibilityNo cancel feeOn-time75%
Search KLM flights
SWISSCheapest£535Average£688FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Kuwait AirwaysCheapest£552Average£639FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Royal JordanianCheapest£567Average£730FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
FinnairCheapest£593Average£954FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Bangkok?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Bangkok. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Bangkok?

Cheapflights helps you find that perfect flight to Bangkok from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to Bangkok with no change fees?

Need flexible booking options for your flight to Bangkok from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Bangkok become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to Bangkok flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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