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Cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport from C$ 559

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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Suvarnabhumi

Enter your travel dates to find the best prices.

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 12 December 2025.

Wed 31/128:50 a.m.LHR - BKK
1 stop26h 10mEtihad Airways
Sat 24/19:25 a.m.BKK - LHR
1 stop15h 45mEtihad Airways
Deal found 10/12C$ 1,139
Wed 10/124:40 p.m.LHR - BKK
1 stop15h 10mMultiple Airlines
Fri 26/121:15 p.m.BKK - LHR
1 stop15h 25mMultiple Airlines
Deal found 10/12C$ 1,241
Wed 10/125:50 p.m.LHR - BKK
1 stop14h 00mMultiple Airlines
Mon 29/121:15 p.m.BKK - LHR
1 stop15h 25mMultiple Airlines
Deal found 10/12C$ 1,269
Thu 11/121:45 p.m.LHR - BKK
1 stop14h 00mSWISS
Mon 29/121:15 p.m.BKK - LHR
1 stop15h 25mSWISS
Deal found 10/12C$ 1,276
Thu 11/128:05 p.m.LHR - BKK
1 stop31h 40mSWISS
Thu 18/121:15 p.m.BKK - LHR
1 stop25h 50mSWISS
Deal found 10/12C$ 1,277
Fri 26/1210:35 p.m.LHR - BKK
1 stop22h 45mTurkish Airlines
Sat 17/111:15 p.m.BKK - LHR
1 stop23h 55mTurkish Airlines
Deal found 11/12C$ 1,331
Wed 24/128:40 a.m.LHR - BKK
1 stop15h 00mQatar Airways
Tue 20/18:15 a.m.BKK - LHR
1 stop21h 25mQatar Airways
Deal found 10/12C$ 1,345
Tue 30/1210:05 p.m.LHR - BKK
1 stop18h 25mSAUDIA
Sat 28/23:20 p.m.BKK - LHR
1 stop23h 10mSAUDIA
Deal found 11/12C$ 1,376
Wed 31/128:55 p.m.LHR - BKK
1 stop19h 30mEtihad Airways
Sat 17/19:25 a.m.BKK - LHR
1 stop15h 45mEtihad Airways
Deal found 10/12C$ 1,391
Wed 24/126:55 p.m.LHR - BKK
1 stop16h 30mQatar Airways
Fri 23/18:15 a.m.BKK - LHR
1 stop16h 10mQatar Airways
Deal found 10/12C$ 1,394
Fri 26/126:55 p.m.LHR - BKK
1 stop16h 30mQatar Airways
Thu 22/18:15 a.m.BKK - LHR
1 stop18h 35mQatar Airways
Deal found 11/12C$ 1,396
Fri 26/123:30 p.m.LHR - BKK
1 stop19h 55mBritish Airways
Thu 5/28:15 a.m.BKK - LHR
1 stop20h 40mBritish Airways
Deal found 11/12C$ 1,400

Find 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 12 December 2025.

Round-trip from

C$ 887

One-way from

C$ 559

Popular in

December

Cheapest in

September

Average price

C$ 1,676
Shenzhen Airlines
  • Shenzhen Airlines
  • 6/2-5/3
  • 2 total stops
  • 69h 00m total
  • London to Bangkok
Search Deals
Shenzhen Airlines
  • Shenzhen Airlines
  • 7/1
  • 1 total stop
  • 38h 20m total
  • London to Bangkok
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 93 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 12 December 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 3/1

9:10 p.m.-6:30 p.m.

1 stop38h 20m

Bangkok Suvarnabhumi

Sun 25/1

3:15 a.m.-7:10 p.m.

1 stop22h 55m

C$ 994

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 20/1

4:50 p.m.-4:40 p.m.

1 stop16h 50m

Bangkok Suvarnabhumi

Wed 4/2

7:55 a.m.-8:10 p.m.

1 stop19h 15m

C$ 1,189

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 19/1

7:20 p.m.-11:25 p.m.

2 stops21h 05m

Bangkok Suvarnabhumi

Wed 4/2

9:25 a.m.-6:10 p.m.

1 stop15h 45m

C$ 1,197

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 23/1

6:55 p.m.-7:25 p.m.

1 stop17h 30m

Bangkok Suvarnabhumi

Fri 30/1

8:15 a.m.-5:25 p.m.

1 stop16h 10m

C$ 1,230

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 24/1

3:35 p.m.-7:20 a.m.

2 stops32h 45m

Bangkok Suvarnabhumi

Sat 7/2

12:45 p.m.-4:00 p.m.

1 stop34h 15m

C$ 1,236

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 23/1

1:55 p.m.-11:25 p.m.

1 stop26h 30m

Bangkok Suvarnabhumi

Thu 5/2

7:50 p.m.-6:10 p.m.

2 stops29h 20m

C$ 1,236

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 4/4

2:45 p.m.-11:55 p.m.

1 stop27h 10m

Bangkok Suvarnabhumi

Sun 26/4

9:10 a.m.-7:00 a.m.

1 stop27h 50m

C$ 1,248

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 16/2

1:55 p.m.-11:25 p.m.

2 stops26h 30m

Bangkok Suvarnabhumi

Mon 9/3

2:40 p.m.-6:40 a.m.

1 stop23h 00m

C$ 1,254

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 10/1

9:10 p.m.-11:40 a.m.

2 stops31h 30m

Bangkok Suvarnabhumi

Thu 29/1

7:30 p.m.-7:10 p.m.

1 stop30h 40m

C$ 1,266

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 12/1

8:50 a.m.-12:00 a.m.

2 stops32h 10m

Bangkok Suvarnabhumi

Fri 6/2

8:55 a.m.-6:40 a.m.

1 stop28h 45m

C$ 1,266

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 22 results
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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 round-trip 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 round-trip flight from Heathrow to Suvarnabhumi. Price data was last updated on 5 December 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 90 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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of C$ 735). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of C$ 1,021). 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 12 December 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Bangkok Suvarnabhumi Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 32% on airfare.

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 12 December 2025.
Read reviews from past customers who have flown EVA Air and Thai Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very good
1,296 reviews
Check prices

Entertainment

8.0

Overall

8.5

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
EVA Air
8.5
Very good
1,296 reviews
EVA Air
8.5
Very good
1,296 reviews
Check prices

Entertainment

8.0

Overall

8.5

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Thai Airways
7.8
Good
366 reviews
EVA Air
8.5
Very good
1,296 reviews
Check prices

Entertainment

8.0

Overall

8.5

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.

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.

  • How long is the flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

    Airlines like Shenzhen Airlines, Cathay Pacific, and Etihad Airways fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport in about 16h 50m. The time it takes to get you to your destination can typically vary by up to 21h 30m. There are 9571 km between London Heathrow Airport and Bangkok Suvarnabhumi Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport round-trip?

    Currently priced at C$ 742, Thai Airways will fly you from London Heathrow Airport to Bangkok Suvarnabhumi Airport and back. In addition to Thai Airways, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on EVA Air for as low as C$ 1,246. Thai Airways is priced at 42% lower than the current average price of a flight leaving 3 months from now.

  • 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 EVA Air (90%), Thai Airways (87%) and Air Canada (83%).

  • 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 vacation 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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of C$ 735). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of C$ 1,021). 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 Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Cha-am

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Heathrow to Suvarnabhumi

Discover the top 2 airlines that operate flights from Heathrow to Suvarnabhumi. 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 629,999 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirwaysCheapestC$ 742AverageC$ 1,545FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
EVA AirCheapestC$ 1,246AverageC$ 1,337FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Suvarnabhumi from Heathrow today with Cheapflights!

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?

Of course! You can now track prices for flights from Heathrow to Suvarnabhumi and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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