Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport from C$ 567

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
3 Aug — 10 Aug1
1 adult

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 29 July 2025.

Round-trip from

C$ 938

One-way from

C$ 567

Popular in

July

Cheapest in

May

Average price

C$ 1,705

Good round-trip deal

C$ 1,997 or less

Good one-way deal

C$ 609 or less
Oman Air
  • Oman Air
  • 11/9-22/9
  • 2 total stops
  • 31h 05m total
  • London to Bangkok
Search Deals
10/9
  • 10/9
  • 2 total stops
  • 33h 50m total
  • London to Bangkok
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 177 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 52 potential savings vs. average RT 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 29 July 2025.

Thu 11/98:50 p.m.LHR - BKK
1 stop14h 55mOman Air
Mon 22/99:00 a.m.BKK - LHR
1 stop16h 10mOman Air
Deal found 29/7C$ 938
Tue 2/97:30 p.m.LHR - BKK
1 stop13h 20mAustrian Airlines
Thu 18/911:40 p.m.BKK - LHR
1 stop14h 40mAustrian Airlines
Deal found 28/7C$ 940
Sat 1/119:10 p.m.LHR - BKK
1 stop31h 00mShenzhen Airlines
Sat 22/1112:10 p.m.BKK - LHR
1 stop38h 00mShenzhen Airlines
Deal found 28/7C$ 941
Thu 21/88:40 a.m.LHR - BKK
1 stop18h 50mMultiple Airlines
Thu 20/119:30 a.m.BKK - LHR
1 stop15h 50mMultiple Airlines
Deal found 28/7C$ 956
Wed 20/86:30 a.m.LHR - BKK
1 stop21h 00mKLM
Thu 25/912:05 p.m.BKK - LHR
1 stop14h 50mKLM
Deal found 29/7C$ 960
Wed 24/99:05 p.m.LHR - BKK
1 stop16h 30mAir India
Tue 30/92:45 p.m.BKK - LHR
1 stop25h 30mAir India
Deal found 29/7C$ 964
Sun 24/87:25 a.m.LHR - BKK
1 stop24h 45mLufthansa
Thu 18/911:40 p.m.BKK - LHR
2 stops16h 15mLufthansa
Deal found 28/7C$ 967
Sun 5/109:30 a.m.LHR - BKK
1 stop15h 00mEtihad Airways
Thu 13/118:55 a.m.BKK - LHR
1 stop16h 30mEtihad Airways
Deal found 29/7C$ 984
Sun 21/910:10 p.m.LHR - BKK
1 stop21h 20mChina Southern
Sat 4/107:00 p.m.BKK - LHR
1 stop30h 00mChina Southern
Deal found 29/7C$ 999
Thu 28/87:00 a.m.LHR - BKK
2 stops20h 45mSWISS
Fri 24/1012:35 p.m.BKK - LHR
1 stop25h 20mSWISS
Deal found 29/7C$ 1,017

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 29 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

Thu 11/9

8:50 p.m.-5:45 p.m.

1 stop14h 55m

Bangkok Suvarnabhumi

Mon 22/9

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

1 stop16h 10m

C$ 938

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 2/9

7:30 p.m.-2:50 p.m.

1 stop13h 20m

Bangkok Suvarnabhumi

Thu 18/9

11:40 p.m.-8:20 a.m.

1 stop14h 40m

C$ 940

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 1/11

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

1 stop31h 00m

Bangkok Suvarnabhumi

Sat 22/11

12:10 p.m.-7:10 p.m.

1 stop38h 00m

C$ 941

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 21/8

8:40 a.m.-9:30 a.m.

1 stop18h 50m

Bangkok Suvarnabhumi

Thu 20/11

9:30 a.m.-6:20 p.m.

1 stop15h 50m

C$ 956

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 20/8

6:30 a.m.-9:30 a.m.

1 stop21h 00m

Bangkok Suvarnabhumi

Thu 25/9

12:05 p.m.-8:55 p.m.

1 stop14h 50m

C$ 960

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 24/9

9:05 p.m.-7:35 p.m.

1 stop16h 30m

Bangkok Suvarnabhumi

Tue 30/9

2:45 p.m.-10:15 a.m.

1 stop25h 30m

C$ 964

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 24/8

7:25 a.m.-2:10 p.m.

1 stop24h 45m

Bangkok Suvarnabhumi

Thu 18/9

11:40 p.m.-9:55 a.m.

2 stops16h 15m

C$ 967

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 5/10

9:30 a.m.-6:30 a.m.

1 stop15h 00m

Bangkok Suvarnabhumi

Mon 10/11

2:55 a.m.-6:25 p.m.

1 stop22h 30m

C$ 984

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 21/9

10:10 p.m.-1:30 a.m.

1 stop21h 20m

Bangkok Suvarnabhumi

Sat 4/10

7:00 p.m.-7:00 p.m.

1 stop30h 00m

C$ 999

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 28/8

7:00 a.m.-9:45 a.m.

2 stops20h 45m

Bangkok Suvarnabhumi

Fri 24/10

12:35 p.m.-7:55 a.m.

1 stop25h 20m

C$ 1,017

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

Showing 1-10 of 20 results
1
2

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 25 July 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 64 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of C$ 949). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of C$ 1,407). 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 29 July 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 at noon could potentially save you up to 34% on airfare.

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 29 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).

What’s the top layover airport for flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Share of one-stop round-trip flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

New Delhi (DEL) – chosen by Cheapflights users on 33% of one-stop itineraries from London Heathrow Airport to Bangkok Suvarnabhumi Airport on Cheapflights.

What’s the cheapest layover airport for flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Average round-trip fare for 1-stop flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Guangzhou (CAN) is the most affordable 1-stop option, with an average round-trip price of C$ 803.

What’s the fastest layover option from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Shortest average travel time for 1-stop one-way flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Guangzhou (CAN) have the shortest average one-way travel time for 1-stop routes: 5h 30m.

Which airport typically offers the quickest layover for flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Average layover duration for 1-stop one-way flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Shanghai (PVG) offer the fastest connection on this route, with an average layover time of 2h 03m.

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 29 July 2025.
Read reviews from past customers who have flown KLM,Austrian Airlines, andChina Southern 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.
KLM
7.8
Good
1,383 reviews
Check prices

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,383 reviews
KLM
7.8
Good
1,383 reviews
Check prices

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Austrian Airlines
7.6
Good
821 reviews
KLM
7.8
Good
1,383 reviews
Check prices

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
China Southern
7.6
Good
103 reviews
KLM
7.8
Good
1,383 reviews
Check prices

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
SWISS
7.5
Good
1,683 reviews
KLM
7.8
Good
1,383 reviews
Check prices

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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?

    Currently priced at C$ 938, Oman Air will fly you from London Heathrow Airport to Bangkok Suvarnabhumi Airport and back. In addition to Oman Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Austrian Airlines and Shenzhen Airlines - these airlines can fly you to your destination from C$ 940 and C$ 941, respectively. Oman Air is priced at 27% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport are Oman Air (C$ 583), China Southern (C$ 597), and SWISS (C$ 623).

  • 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 (85%), Thai Airways (82%) and Air Canada (77%).

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

    Looking at all options, your cheapest flight can be booked for C$ 609. While the most popular route (London Heathrow - Bangkok Suvarnabhumi) can be booked for C$ 1,608 on average our data indicates C$ 1,777 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 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of C$ 949). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of C$ 1,407). 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

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.

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 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirwaysCheapestC$ 738AverageC$ 1,564FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
EVA AirCheapestC$ 1,240AverageC$ 1,395FlexibilityNo 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.

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.