Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport from $611

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
15 Jul — 22 Jul1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Bangkok Suvarnabhumi are usually found in May or June, booked 81 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Heathrow to Suvarnabhumi

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Suvarnabhumi (BKK). 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 10 July 2025.

Round-trip from

$1,027

One-way from

$611

Popular in

December

Cheapest in

May

Average price

$1,880

Good round-trip deal

$2,247 or less

Good one-way deal

$1,335 or less
Lufthansa
  • Lufthansa
  • 30/8-18/9
  • 3 total stops
  • 45h 50m total
  • London to Bangkok
Search Deals
China Southern
  • China Southern
  • 8/9
  • 1 total stop
  • 17h 50m total
  • London to Bangkok
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($130 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($65 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Bangkok Suvarnabhumi.
Search Deals
Price to beat on a one-way flight from London Heathrow to Bangkok Suvarnabhumi.
Search Deals

Find flight deals from Heathrow to Suvarnabhumi

Cheapest flights from Heathrow to Suvarnabhumi
Explore the most affordable flight options available from Heathrow to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 July 2025.

Sat 30/809:00LHR - BKK
1 stop23h 10mLufthansa
Thu 18/923:00BKK - LHR
2 stops22h 40mLufthansa
Deal found 8/7$1,027
Wed 20/822:00LHR - BKK
1 stop30h 00mHainan Airlines
Sun 24/801:30BKK - LHR
2 stops24h 00mHainan Airlines
Deal found 7/7$1,044
Sat 1/1121:10LHR - BKK
1 stop31h 00mShenzhen Airlines
Tue 25/1112:10BKK - LHR
1 stop38h 00mShenzhen Airlines
Deal found 9/7$1,062
Wed 10/911:45LHR - BKK
1 stop15h 45mKLM
Mon 29/912:05BKK - LHR
1 stop14h 50mKLM
Deal found 7/7$1,065
Thu 28/820:50LHR - BKK
1 stop14h 55mOman Air
Sun 21/919:10BKK - LHR
1 stop30h 00mOman Air
Deal found 7/7$1,068
Sat 30/806:00LHR - BKK
1 stop26h 50mAustrian Airlines
Fri 3/1023:40BKK - LHR
1 stop15h 20mAustrian Airlines
Deal found 9/7$1,096
Sun 5/1022:40LHR - BKK
1 stop19h 30mAir China
Mon 13/1018:20BKK - LHR
1 stop31h 55mAir China
Deal found 7/7$1,098
Thu 4/919:30LHR - BKK
1 stop13h 20mMultiple Airlines
Mon 15/923:00BKK - LHR
1 stop16h 55mMultiple Airlines
Deal found 8/7$1,117
Fri 5/913:00LHR - BKK
1 stop34h 30mFinnair
Mon 8/907:05BKK - LHR
1 stop19h 35mFinnair
Deal found 8/7$1,140
Wed 10/912:10LHR - BKK
1 stop15h 35mSWISS
Mon 22/912:35BKK - LHR
1 stop25h 20mSWISS
Deal found 9/7$1,147

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Suvarnabhumi 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 647,157 searches. Data last updated 10 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Heathrow

Fly to

Suvarnabhumi

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 30/8

09:00-14:10

1 stop23h 10m

Bangkok Suvarnabhumi

Thu 18/9

23:00-15:40

2 stops22h 40m

$1,027

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 20/8

22:00-10:00

1 stop30h 00m

Bangkok Suvarnabhumi

Sun 24/8

01:30-19:30

2 stops24h 00m

$1,044

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 28/8

13:45-09:45

1 stop14h 00m

Bangkok Suvarnabhumi

Tue 16/9

12:35-21:45

1 stop15h 10m

$1,061

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 1/11

21:10-11:10

1 stop31h 00m

Bangkok Suvarnabhumi

Tue 25/11

12:10-19:10

1 stop38h 00m

$1,062

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 10/9

11:45-09:30

1 stop15h 45m

Bangkok Suvarnabhumi

Mon 29/9

12:05-20:55

1 stop14h 50m

$1,065

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 28/8

20:50-17:45

1 stop14h 55m

Bangkok Suvarnabhumi

Sun 21/9

19:10-19:10

1 stop30h 00m

$1,068

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 30/8

06:00-14:50

1 stop26h 50m

Bangkok Suvarnabhumi

Fri 3/10

23:40-09:00

1 stop15h 20m

$1,096

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 5/10

22:40-00:10

1 stop19h 30m

Bangkok Suvarnabhumi

Mon 13/10

18:20-20:15

1 stop31h 55m

$1,098

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 4/9

19:30-14:50

1 stop13h 20m

Bangkok Suvarnabhumi

Mon 15/9

23:00-09:55

1 stop16h 55m

$1,117

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 5/9

13:00-05:30

1 stop34h 30m

Bangkok Suvarnabhumi

Mon 8/9

07:05-20:40

1 stop19h 35m

$1,140

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Heathrow to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Suvarnabhumi. Price data was last updated on 27 June 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of $489). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $911). 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 Suvarnabhumi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 July 2025.

When flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 30% versus a flight in the afternoon.

Weekly flight availability from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Explore weekly flight availability from Heathrow to Suvarnabhumi. 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 10 July 2025.

The most flights from LHR to BKK 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).

How much does it cost for a return flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Reviews of airlines servicing Suvarnabhumi

Get insights into the airlines that provide service to Suvarnabhumi. 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 Suvarnabhumi. Reviews last updated 10 July 2025.
Check out reviews from past customers who have flown with Hainan Airlines, KLM, andAustrian Airlines from London Heathrow Airport to Bangkok Suvarnabhumi Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Food

8.6

Entertainment

7.6

Crew

8.9

Comfort

8.1

Boarding

8.6

Overall

8.2

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Hainan Airlines
8.2
Very Good
41 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Food

8.6

Entertainment

7.6

Crew

8.9

Comfort

8.1

Boarding

8.6

Overall

8.2

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
KLM
7.8
Good
1,370 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Food

8.6

Entertainment

7.6

Crew

8.9

Comfort

8.1

Boarding

8.6

Overall

8.2

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Austrian Airlines
7.6
Good
806 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Food

8.6

Entertainment

7.6

Crew

8.9

Comfort

8.1

Boarding

8.6

Overall

8.2

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
China Southern
7.6
Good
103 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Food

8.6

Entertainment

7.6

Crew

8.9

Comfort

8.1

Boarding

8.6

Overall

8.2

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Suvarnabhumi. 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 Suvarnabhumi Airport round-trip?

    According to our current data, Lufthansa ($1,027), Shenzhen Airlines ($1,062), and Oman Air ($1,065) offers the cheapest pricing from London Heathrow Airport to Bangkok Suvarnabhumi Airport. You may be able to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport for 28% less than the average price by searching for these airlines.

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

    The cheapet airlines for a one-way flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport are China Southern ($611), Oman Air ($660), and China Eastern ($677).

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport are Thai Airways (71%), EVA Air (70%) and Air Canada (67%).

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

    Looking at all options, your cheapest flight can be booked for $1,110. While the most popular route (London Heathrow - Bangkok Suvarnabhumi) can be booked for $1,125 on average our data indicates $2,068 when flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Suvarnabhumi 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 Suvarnabhumi Airport?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of $489). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $911). 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Chonburi
Ko Samet
Cha-am
Ko Lan
Sattahip
Ayutthaya

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Suvarnabhumi

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Suvarnabhumi 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 Suvarnabhumi?

Deals for Heathrow to Suvarnabhumi flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Suvarnabhumi by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Suvarnabhumi from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Heathrow to Suvarnabhumi flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights