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

Currently, the most affordable month to book a Thai Airways flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport in May, with an average price of £814. Conversely, traveling with Thai Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December will be the most expensive, with an average cost of £1,153. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Weekly Thai Airways flight availability from London Heathrow Airport to Bangkok Suvarnabhumi Airport

The most Thai Airways flights from LHR to BKK are scheduled on a Monday (3 on average). You will have fewer Thai Airways flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

In terms of precipitation, rainfall in Bangkok Suvarnabhumi Airport ranges from 10.0 - 320.0 inches 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.

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).

£478+ Thai Airways Flights from Heathrow to Suvarnabhumi

Q: How far ahead should I book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways?

Booking with Thai Airways 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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Cheapest Thai Airways flights from Heathrow to Suvarnabhumi
Explore the most affordable Thai Airways flight options available from Heathrow to Suvarnabhumi. Find the lowest fares with prices last updated on 9 October 2026.

Sun 11/1012:30 -

Nonstop11h 30m

Sat 24/1012:35 -

Nonstop12h 40m

Deal found 8/10£781

Thu 22/1012:30 -

Nonstop11h 30m

Tue 3/1113:20 -

Nonstop13h 15m

Deal found 6/10£788

Thu 8/1012:30 -

Nonstop11h 30m

Mon 12/1012:35 -

Nonstop12h 40m

Deal found 6/10£790

Can I get a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport on Thai Airways for under £757?
Cheapflights users have found 10 Thai Airways flights for under £757 on the LHR-BKK route. Prices on flights to Bangkok Suvarnabhumi Airport from London Heathrow Airport can vary based on many factors including dates. To look at price based on your preferred dates, click here.

Thai Airways flights from Heathrow to Suvarnabhumi in 2026

One-way from	£478
Popular in	December
Cheapest in	May
Average price (all airlines)	£706

Thai Airways
3/11-31/12
Nonstop
11h 25m total
London to Bangkok

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Highest demand for flights from London Heathrow to Bangkok Suvarnabhumi; 6% potential price increase.

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Best time to find cheap flights from London Heathrow to Bangkok Suvarnabhumi; 2% potential price drop.

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Average price for all London Heathrow to Bangkok Suvarnabhumi flights (one-way and round-trip).

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The best time to book a flight to Bangkok Suvarnabhumi Airport with Thai Airways is 31 days before departure. On average, fares are higher if you book 74 days before departure.

Which month is the cheapest to fly Economy class from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

For Economy class flights, the cheapest month to fly this route is May. The most expensive months are December and July.

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.

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Thai Airways flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport (LHR - BKK)

Find Thai Airways flight deals from Heathrow to Suvarnabhumi

Cheapest Thai Airways flights from Heathrow to SuvarnabhumiExplore the most affordable Thai Airways flight options available from Heathrow to Suvarnabhumi. Find the lowest fares with prices last updated on 9 October 2026.

Explore the most affordable Thai Airways flight options available from Heathrow to Suvarnabhumi. Find the lowest fares with prices last updated on 9 October 2026.

Best Thai Airways flights from Heathrow to SuvarnabhumiDiscover carefully curated Thai Airways flight deals from Heathrow to Suvarnabhumi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 October 2026.

Discover carefully curated Thai Airways flight deals from Heathrow to Suvarnabhumi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 October 2026.

Direct Thai Airways flights from Heathrow to SuvarnabhumiExplore direct Thai Airways flight options from Heathrow to Suvarnabhumi based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 October 2026.

Explore direct Thai Airways flight options from Heathrow to Suvarnabhumi based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 October 2026.

Last-minute Thai Airways flights from Heathrow to SuvarnabhumiDiscover last-minute Thai Airways flight deals from Heathrow to Suvarnabhumi. Data last updated 9 October 2026 and is based on user searches.

Discover last-minute Thai Airways flight deals from Heathrow to Suvarnabhumi. Data last updated 9 October 2026 and is based on user searches.

One-way Thai Airways flights to SuvarnabhumiSearch for one-way Thai Airways flight options to Suvarnabhumi. Find affordable one-way fares based on user searches. Data last updated 9 October 2026.

Search for one-way Thai Airways flight options to Suvarnabhumi. Find affordable one-way fares based on user searches. Data last updated 9 October 2026.

Can I get a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport on Thai Airways for under £757?

Thai Airways flights from Heathrow to Suvarnabhumi in 2026

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Average price (all airlines)

When is the best time to book a flight to Bangkok Suvarnabhumi Airport with Thai Airways?

The best time to book a flight to Bangkok Suvarnabhumi Airport with Thai Airways is 31 days before departure. On average, fares are higher if you book 74 days before departure.

Which month is the cheapest to fly Economy class from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

For Economy class flights, the cheapest month to fly this route is May. The most expensive months are December and July.

Weekly Thai Airways flight availability from London Heathrow Airport to Bangkok Suvarnabhumi Airport

The most Thai Airways flights from LHR to BKK are scheduled on a Monday (3 on average). You will have fewer Thai Airways flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Suvarnabhumi by month

In terms of precipitation, rainfall in Bangkok Suvarnabhumi Airport ranges from 10.0 - 320.0 inches 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

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.

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Suvarnabhumi on another airline

Consider alternative airlines that service the Suvarnabhumi area. Flight routes are based on user searches made on Cheapflights and were last updated on 9 October 2026.

Other Thai Airways flights from Heathrow

Browse through other Thai Airways flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 9 October 2026.

Complete your trip

Complete your trip to Suvarnabhumi by adding a car hire and/or hotel booking to your travel itinerary.

Other airlines servicing Heathrow and Suvarnabhumi

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If Suvarnabhumi is not for you, choose from these other destinations located in Asia. Flight routes are based on user searches made on Cheapflights and were last updated on 9 October 2026.

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Browse through some of the most popular routes that Thai Airways offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 9 October 2026.

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Cheapest Thai Airways flights from Heathrow to Suvarnabhumi
Explore the most affordable Thai Airways flight options available from Heathrow to Suvarnabhumi. Find the lowest fares with prices last updated on 9 October 2026.

Best Thai Airways flights from Heathrow to Suvarnabhumi
Discover carefully curated Thai Airways flight deals from Heathrow to Suvarnabhumi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 October 2026.

Direct Thai Airways flights from Heathrow to Suvarnabhumi
Explore direct Thai Airways flight options from Heathrow to Suvarnabhumi based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 October 2026.

Last-minute Thai Airways flights from Heathrow to Suvarnabhumi
Discover last-minute Thai Airways flight deals from Heathrow to Suvarnabhumi. Data last updated 9 October 2026 and is based on user searches.

One-way Thai Airways flights to Suvarnabhumi
Search for one-way Thai Airways flight options to Suvarnabhumi. Find affordable one-way fares based on user searches. Data last updated 9 October 2026.