How far in advance should I book tickets for a flight with Thai Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Generally, when trying to get a below-average price for your ticket, try to book around 6 days before departure. For the cheapest possible price, our data suggests booking 58 days before departure.

Is Thai Airways the cheapest airline to fly with from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

With an average price of £691 return, Thai Airways is not the cheapest airline to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with. Instead, for the lowest price, our data suggests flying with Shenzhen Airlines, where a return flight costs £409 on average.

Does Thai Airways fly direct to Bangkok Suvarnabhumi Airport from London Heathrow Airport?

Yes, Thai Airways does offer direct flights for the route, with around 21 flights per week.

What’s the cheapest day of the week to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways?

On average, the cheapest day of the week to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways is Saturday, when prices are around £406. The most expensive day is generally Monday, when the average price is around £415.

£541 Cheap Thai Airways Flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

LHR - BKK

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Flight Deals

Cheap Thai Airways Flight Deals from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Here are some of the best deals found on KAYAK recently from Thai Airways for return flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent return Thai Airways flight deals from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Tue, 5 May - Mon, 18 May

21:25 - 15:00

LHR

BKK

11h 35mdirect

00:30 - 07:15

BKK

LHR

12h 45mdirect

£704Thai Airways

Fri, 8 May - Thu, 28 May

12:30 - 06:00

LHR

BKK

11h 30mdirect

00:30 - 07:15

BKK

LHR

12h 45mdirect

£714Thai Airways

Wed, 29 Apr - Wed, 6 May

12:30 - 06:00

LHR

BKK

11h 30mdirect

00:30 - 07:15

BKK

LHR

12h 45mdirect

£724Thai Airways

Fri, 1 May - Sat, 16 May

21:25 - 15:00

LHR

BKK

11h 35mdirect

00:30 - 07:15

BKK

LHR

12h 45mdirect

£733Thai Airways

Thu, 4 Jun - Fri, 14 Aug

12:30 - 06:00

LHR

BKK

11h 30mdirect

00:45 - 07:15

BKK

LHR

12h 30mdirect

£760Thai Airways

Sun, 24 May - Fri, 12 Jun

21:25 - 15:00

LHR

BKK

11h 35mdirect

12:50 - 19:10

BKK

LHR

12h 20mdirect

£764Thai Airways

Sat, 23 May - Sun, 14 Jun

12:30 - 06:00

LHR

BKK

11h 30mdirect

12:45 - 19:15

BKK

LHR

12h 30mdirect

£765Thai Airways

Tue, 5 May - Tue, 19 May

21:25 - 15:00

LHR

BKK

11h 35mdirect

00:30 - 07:15

BKK

LHR

12h 45mdirect

£765Thai Airways

Fri, 22 May - Sat, 6 Jun

12:30 - 06:00

LHR

BKK

11h 30mdirect

00:45 - 07:15

BKK

LHR

12h 30mdirect

£766Thai Airways

Tue, 26 May - Sun, 14 Jun

12:30 - 06:00

LHR

BKK

11h 30mdirect

00:45 - 07:15

BKK

LHR

12h 30mdirect

£779Thai Airways

Useful Info

Low season	September
High season	December
Cheapest flight	£541
Average price round-trip	£974

Best time to beat the crowds (12% less expensive on average)

Most popular time to fly (30% more expensive on average)

Flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport

(price for this month)

When to Book Flights with Thai Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Average price per month

Flight prices as travel date approaches

How far in advance should I book tickets for a flight with Thai Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport?
Generally, when trying to get a below-average price for your ticket, try to book around 6 days before departure. For the cheapest possible price, our data suggests booking 58 days before departure.
Is Thai Airways the cheapest airline to fly with from London Heathrow Airport to Bangkok Suvarnabhumi Airport?
With an average price of £691 return, Thai Airways is not the cheapest airline to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with. Instead, for the lowest price, our data suggests flying with Shenzhen Airlines, where a return flight costs £409 on average.
What is the cheapest Thai Airways flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport?
In the last 3 days, the lowest price for a flight with Thai Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport was £641 for a return flight and £466 for a one-way flight.
Does Thai Airways fly direct to Bangkok Suvarnabhumi Airport from London Heathrow Airport?
Yes, Thai Airways does offer direct flights for the route, with around 21 flights per week.
What’s the cheapest day of the week to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways?
On average, the cheapest day of the week to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways is Saturday, when prices are around £406. The most expensive day is generally Monday, when the average price is around £415.
What’s the cheapest month to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways?
The cheapest month for Thai Airways flights to Bangkok Suvarnabhumi Airport from London Heathrow Airport is generally March, where plane tickets cost £423 on average. If possible, try to avoid the most expensive months of December and July, when tickets cost £615 and £742 respectively.

7.8

Good366 verified ratings

7.5Comfort

8.3Crew

6.9Entertainment

7.3Food

7.9Boarding

8.0 Very Good

Wee Keng, Dec 2025

BKK

SIN

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

10.0 Wonderful

michael, Dec 2025

BKK

NRT

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

4.0 Mediocre

Thomas, Dec 2025

FRA

BKK

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

6.0 Okay

Peerapat, Oct 2025

KIX

BKK

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

4.0 Mediocre

Peerapat, Oct 2025

BKK

KIX

Need to improve on punctuality. My flight was delayed by 1 hour.

4.0 Mediocre

Ashley, Oct 2025

BKK

SYD

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

6.0 Okay

Verified traveller, Sept 2025

TPE

JFK

Need food improvement, wifi improvement

8.0 Very Good

Verified traveller, Sept 2025

BKK

TPE

Good

10.0 Wonderful

Jan, Aug 2025

PNH

BKK

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

8.0 Very Good

Joe, Jun 2025

TPE

ORD

The flight was mostly fine, but I really wished that seats had an outlet to charge devices considering the length of the flight (15 hours there and 14 hours back).

Everything you need to know for your flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport

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LHR - BKK

£541 Find Cheap Thai Airways Flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Search hundreds of travel sites at once for deals on Thai Airways flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Cheap Thai Airways Flight Deals from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Recent return Thai Airways flight deals from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Recent one-way Thai Airways flight deals from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Recent last minute Thai Airways flight deals from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Recent direct Thai Airways flight deals from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Good to know

When to Book Flights with Thai Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport

FAQs for flying to Bangkok Suvarnabhumi Airport with Thai Airways

How far in advance should I book tickets for a flight with Thai Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Generally, when trying to get a below-average price for your ticket, try to book around 6 days before departure. For the cheapest possible price, our data suggests booking 58 days before departure.

Is Thai Airways the cheapest airline to fly with from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

With an average price of £691 return, Thai Airways is not the cheapest airline to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with. Instead, for the lowest price, our data suggests flying with Shenzhen Airlines, where a return flight costs £409 on average.

What is the cheapest Thai Airways flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

In the last 3 days, the lowest price for a flight with Thai Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport was £641 for a return flight and £466 for a one-way flight.

Does Thai Airways fly direct to Bangkok Suvarnabhumi Airport from London Heathrow Airport?

Yes, Thai Airways does offer direct flights for the route, with around 21 flights per week.

What’s the cheapest day of the week to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways?

On average, the cheapest day of the week to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways is Saturday, when prices are around £406. The most expensive day is generally Monday, when the average price is around £415.

What’s the cheapest month to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways?

The cheapest month for Thai Airways flights to Bangkok Suvarnabhumi Airport from London Heathrow Airport is generally March, where plane tickets cost £423 on average. If possible, try to avoid the most expensive months of December and July, when tickets cost £615 and £742 respectively.

Thai Airways Customer Reviews

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Everything you need to know for your flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Other airlines flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Flight deals from the most popular airlines with KAYAK users flying the route

Cabin class types available on flights to Bangkok Suvarnabhumi Airport

Cabin classes available on flights to London Heathrow Airport. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to Bangkok Suvarnabhumi Airport with a hotel stay or car hire

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Find deals for your return flight

Top Thai Airways flights

The most popular destinations for flights with Thai Airways according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.