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Cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport from C$ 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 21/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

C$ 823

One-way from

C$ 611

Popular in

July

Cheapest in

May

Average price

C$ 1,143
Shenzhen Airlines
  • Shenzhen Airlines
  • 5/11-16/11
  • 2 total stops
  • 54h 05m total
  • London to Bangkok
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Oman Air
  • Oman Air
  • 21/6
  • 1 total stop
  • 14h 55m total
  • London to Bangkok
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Highest demand for flights based on searches. 8% potential increase in price (C$ 168 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).
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Average for round-trip flights in June 2025
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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 12 June 2025.

Wed 5/119:10 p.m.LHR - BKK
1 stop21h 40mShenzhen Airlines
Sun 23/1112:10 p.m.BKK - LHR
1 stop38h 00mShenzhen Airlines
Deal found 11/6C$ 823
Sun 24/86:00 a.m.LHR - BKK
1 stop21h 45mSWISS
Wed 24/912:35 p.m.BKK - LHR
1 stop36h 45mSWISS
Deal found 11/6C$ 897
Tue 24/66:00 a.m.LHR - BKK
1 stop26h 50mAustrian Airlines
Mon 14/711:40 p.m.BKK - LHR
1 stop15h 05mAustrian Airlines
Deal found 12/6C$ 926
Wed 18/610:50 a.m.LHR - BKK
1 stop21h 20mLufthansa
Thu 3/711:00 p.m.BKK - LHR
1 stop29h 40mLufthansa
Deal found 10/6C$ 950
Wed 10/911:45 a.m.LHR - BKK
1 stop15h 45mKLM
Thu 9/1012:05 p.m.BKK - LHR
1 stop26h 55mKLM
Deal found 12/6C$ 975
Wed 11/68:50 p.m.LHR - BKK
1 stop14h 55mOman Air
Wed 18/69:00 a.m.BKK - LHR
1 stop16h 10mOman Air
Deal found 11/6C$ 998
Thu 4/910:20 a.m.LHR - BKK
1 stop37h 10mFinnair
Wed 10/97:05 a.m.BKK - LHR
1 stop32h 05mFinnair
Deal found 10/6C$ 1,023
Wed 8/1012:10 p.m.LHR - BKK
1 stop15h 35mMultiple Airlines
Sun 21/1211:30 p.m.BKK - LHR
1 stop17h 55mMultiple Airlines
Deal found 10/6C$ 1,025
Sun 29/69:45 p.m.LHR - BKK
1 stop14h 50mEtihad Airways
Tue 1/72:55 a.m.BKK - LHR
1 stop18h 20mEtihad Airways
Deal found 11/6C$ 1,040
Sat 6/126:40 a.m.LHR - BKK
1 stop26h 40mScandinavian Airlines
Thu 18/1212:45 p.m.BKK - LHR
1 stop15h 55mScandinavian Airlines
Deal found 11/6C$ 1,057
Tue 18/117:20 p.m.LHR - BKK
1 stop16h 25mQatar Airways
Wed 10/128:10 a.m.BKK - LHR
1 stop20h 50mQatar Airways
Deal found 12/6C$ 1,110
Thu 13/1110:25 a.m.LHR - BKK
1 stop16h 50mMalaysia Airlines
Sat 22/118:05 p.m.BKK - LHR
1 stop26h 20mMalaysia Airlines
Deal found 11/6C$ 1,133

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 June 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

Wed 5/11

9:10 p.m.-1:50 a.m.

1 stop21h 40m

Bangkok Suvarnabhumi

Sun 23/11

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

1 stop38h 00m

C$ 823

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 24/8

6:00 a.m.-9:45 a.m.

1 stop21h 45m

Bangkok Suvarnabhumi

Wed 24/9

12:35 p.m.-7:20 p.m.

1 stop36h 45m

C$ 897

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 24/6

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

1 stop13h 20m

Bangkok Suvarnabhumi

Sun 13/7

11:40 p.m.-6:40 p.m.

1 stop25h 00m

C$ 926

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 25/6

1:45 p.m.-2:50 p.m.

2 stops19h 05m

Bangkok Suvarnabhumi

Mon 7/7

11:00 p.m.-8:15 a.m.

1 stop15h 15m

C$ 957

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 10/9

11:45 a.m.-9:30 a.m.

1 stop15h 45m

Bangkok Suvarnabhumi

Thu 9/10

12:05 p.m.-9:00 a.m.

1 stop26h 55m

C$ 975

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 24/6

8:45 a.m.-9:45 a.m.

1 stop19h 00m

Bangkok Suvarnabhumi

Tue 1/7

11:00 p.m.-8:15 a.m.

1 stop15h 15m

C$ 976

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 28/8

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

1 stop14h 55m

Bangkok Suvarnabhumi

Sun 14/9

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

1 stop30h 00m

C$ 998

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 7/9

6:10 p.m.-5:30 a.m.

1 stop29h 20m

Bangkok Suvarnabhumi

Sat 13/9

7:10 a.m.-12:35 p.m.

1 stop35h 25m

C$ 1,012

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 29/6

9:45 p.m.-6:35 p.m.

1 stop14h 50m

Bangkok Suvarnabhumi

Tue 1/7

2:55 a.m.-3:15 p.m.

1 stop18h 20m

C$ 1,040

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 6/12

6:40 a.m.-4:20 p.m.

1 stop26h 40m

Bangkok Suvarnabhumi

Tue 16/12

12:45 p.m.-9:40 p.m.

1 stop15h 55m

C$ 1,057

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 34 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 9 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of C$ 965). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of C$ 1,441). 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 June 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 33% 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 12 June 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).

Rainfall in Suvarnabhumi by month

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

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

Temperature in Suvarnabhumi by month

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

If weather is an important factor for your trip to Bangkok Suvarnabhumi Airport, 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 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 June 2025.
See what other customers who have flown with EVA Air, Emirates and Hainan Airlines 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.
EVA Air
8.4
Very good
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
EVA Air
8.4
Very good
1,202 reviews
EVA Air
8.4
Very good
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Emirates
8.1
Very good
3,264 reviews
EVA Air
8.4
Very good
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Hainan Airlines
8.1
Very good
39 reviews
EVA Air
8.4
Very good
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
KLM
7.8
Good
1,358 reviews
EVA Air
8.4
Very good
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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$ 823, Shenzhen Airlines will fly you from London Heathrow Airport to Bangkok Suvarnabhumi Airport and back. In addition to Shenzhen Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from SWISS and Austrian Airlines - these airlines can fly you to your destination from C$ 897 and C$ 926, respectively. Shenzhen Airlines is priced at 36% 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$ 611), Hainan Airlines (C$ 622), and China Eastern (C$ 626).

  • 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 (62%), EVA Air (59%) and Air Canada (57%).

  • 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$ 965). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of C$ 1,441). 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

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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 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirwaysCheapestC$ 736AverageC$ 1,531FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
EVA AirCheapestC$ 1,235AverageC$ 1,354FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

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

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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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