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Cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport from C$ 501

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
26 Feb — 5 Mar1
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 27 January 2026.

Thu 7/59:20 p.m.
LHR
-
BKK
1 stop17h 35m
China Eastern
Sun 17/55:05 a.m.
BKK
-
LHR
1 stop19h 35m
China Eastern
Deal found 26/1C$ 763
Thu 29/19:00 p.m.
LHR
-
BKK
1 stop18h 25m
China Eastern
Fri 6/35:45 a.m.
BKK
-
LHR
1 stop18h 45m
China Eastern
Deal found 25/1C$ 764
Wed 18/29:00 p.m.
LHR
-
BKK
1 stop18h 25m
China Eastern
Thu 5/35:45 a.m.
BKK
-
LHR
1 stop18h 45m
China Eastern
Deal found 26/1C$ 767
Sat 31/19:00 p.m.
LHR
-
BKK
1 stop21h 55m
China Eastern
Mon 9/25:05 a.m.
BKK
-
LHR
1 stop19h 25m
China Eastern
Deal found 24/1C$ 770
Wed 18/29:00 p.m.
LHR
-
BKK
1 stop19h 55m
China Eastern
Fri 13/312:55 a.m.
BKK
-
LHR
1 stop23h 35m
China Eastern
Deal found 27/1C$ 772
Tue 17/29:00 p.m.
LHR
-
BKK
1 stop24h 45m
China Eastern
Mon 9/35:05 a.m.
BKK
-
LHR
1 stop19h 25m
China Eastern
Deal found 25/1C$ 774
Sun 8/39:00 p.m.
LHR
-
BKK
1 stop19h 55m
China Eastern
Mon 16/37:55 p.m.
BKK
-
LHR
1 stop28h 35m
China Eastern
Deal found 26/1C$ 776
Wed 18/29:00 p.m.
LHR
-
BKK
1 stop18h 25m
China Eastern
Mon 16/39:05 p.m.
BKK
-
LHR
2 stops27h 25m
China Eastern
Deal found 27/1C$ 782
Tue 5/59:20 p.m.
LHR
-
BKK
1 stop17h 35m
China Eastern
Sun 17/55:05 a.m.
BKK
-
LHR
1 stop19h 35m
China Eastern
Deal found 26/1C$ 783
Thu 29/19:00 p.m.
LHR
-
BKK
1 stop20h 55m
China Eastern
Sun 8/39:05 p.m.
BKK
-
LHR
2 stops27h 25m
China Eastern
Deal found 26/1C$ 786
Tue 10/39:00 p.m.
LHR
-
BKK
2 stops34h 55m
China Eastern
Fri 8/51:20 p.m.
BKK
-
LHR
2 stops59h 20m
China Eastern
Deal found 27/1C$ 791

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 27 January 2026.

Round-trip from

C$ 763

One-way from

C$ 501

Popular in

July

Cheapest in

September

Average price

C$ 1,216
China Eastern
  • China Eastern
  • 7/5-17/5
  • 2 total stops
  • 37h 10m total
  • London to Bangkok
Search Deals
Air China
  • Air China
  • 7/5
  • 1 total stop
  • 37h 40m total
  • London to Bangkok
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 178 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 27 January 2026.
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 18/2

9:00 p.m.-10:25 p.m.

1 stop18h 25m

Bangkok Suvarnabhumi

Wed 11/3

2:20 a.m.-5:30 p.m.

2 stops22h 10m

C$ 786

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 5/5

9:20 p.m.-9:55 p.m.

1 stop18h 35m

Bangkok Suvarnabhumi

Mon 18/5

5:05 a.m.-6:40 p.m.

1 stop19h 35m

C$ 793

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 5/5

9:20 p.m.-9:55 p.m.

1 stop18h 35m

Bangkok Suvarnabhumi

Tue 19/5

2:10 a.m.-6:40 p.m.

1 stop22h 30m

C$ 793

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 7/5

9:20 p.m.-8:55 p.m.

1 stop17h 35m

Bangkok Suvarnabhumi

Fri 15/5

2:10 a.m.-6:40 p.m.

1 stop22h 30m

C$ 793

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 6/5

9:20 p.m.-9:55 p.m.

1 stop18h 35m

Bangkok Suvarnabhumi

Fri 15/5

2:10 a.m.-6:40 p.m.

1 stop22h 30m

C$ 793

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 6/5

9:20 p.m.-9:55 p.m.

1 stop18h 35m

Bangkok Suvarnabhumi

Wed 20/5

5:05 a.m.-6:40 p.m.

1 stop19h 35m

C$ 793

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 10/5

9:20 p.m.-12:40 a.m.

1 stop21h 20m

Bangkok Suvarnabhumi

Sun 17/5

2:10 a.m.-6:40 p.m.

1 stop22h 30m

C$ 794

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 6/5

9:20 p.m.-9:55 p.m.

1 stop18h 35m

Bangkok Suvarnabhumi

Fri 15/5

5:05 a.m.-6:40 p.m.

1 stop19h 35m

C$ 798

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 3/5

9:20 p.m.-8:55 p.m.

1 stop17h 35m

Bangkok Suvarnabhumi

Tue 19/5

3:55 p.m.-6:40 p.m.

2 stops32h 45m

C$ 805

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 20/4

9:20 p.m.-4:05 a.m.

1 stop24h 45m

Bangkok Suvarnabhumi

Thu 21/5

8:50 p.m.-6:40 p.m.

2 stops27h 50m

C$ 805

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

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 23 January 2026.

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 85 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$ 727). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of C$ 1,001). 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 27 January 2026.

When flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip 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 27 January 2026.
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
8.4
Very good
1,334 reviews
Check prices

Food

8.1

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
EVA Air
8.4
Very good
1,334 reviews
EVA Air
8.4
Very good
1,334 reviews
Check prices

Food

8.1

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Thai Airways
7.8
Good
380 reviews
EVA Air
8.4
Very good
1,334 reviews
Check prices

Food

8.1

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.

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 China Eastern fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport in about 18h 25m. The time it takes to get you to your destination can typically vary by up to . There are 9571 km between London Heathrow Airport and Bangkok Suvarnabhumi Airport.

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

    Currently priced at C$ 737, 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$ 1,237. 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 (80%), Thai Airways (79%) and Air Canada (76%).

  • 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$ 727). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of C$ 1,001). 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 27 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai AirwaysCheapestC$ 737AverageC$ 1,534FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
EVA AirCheapestC$ 1,237AverageC$ 1,328FlexibilityNo 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?

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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