Cheap Flights from London Heathrow to Bangkok

Compare London Heathrow to Bangkok flight deals

Find the cheapest month or even day of the year to fly to Bangkok

Book the best Bangkok fare with no extra fees

Flight deals from London Heathrow to Bangkok

Looking for a cheap last-minute deal or the best return flight from London Heathrow to Bangkok? Find the lowest prices on one-way and return tickets right here.

Bangkok.R 6,005 per passenger.Departing Tue, 17 Jun.One-way flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from London Heathrow on Tue, 17 Jun, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,005, select.

Bangkok.R 6,033 per passenger.Departing Wed, 23 Apr.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Wed, 23 Apr, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,033, select.

Bangkok.R 6,241 per passenger.Departing Sun, 31 Aug.One-way flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from London Heathrow on Sun, 31 Aug, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,241, select.

Bangkok.R 6,241 per passenger.Departing Sun, 16 Nov.One-way flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from London Heathrow on Sun, 16 Nov, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,241, select.

Bangkok.R 6,359 per passenger.Departing Sun, 7 Sep.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Sun, 7 Sep, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,359, select.

Bangkok.R 6,515 per passenger.Departing Mon, 13 Oct.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Mon, 13 Oct, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,515, select.

Bangkok.R 6,971 per passenger.Departing Sat, 17 May.One-way flight with Air Serbia.Outbound indirect flight with Air Serbia, departs from London Heathrow on Sat, 17 May, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,971, select.

Bangkok.R 7,465 per passenger.Departing Sun, 11 Jan.One-way flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from London Heathrow on Sun, 11 Jan, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 7,465, select.

Find the cheapest month to fly from London Heathrow to Bangkok

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Bangkok flights are currently cheapest in June.

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Direct flights from London Heathrow to Bangkok

Alternative London Heathrow to Bangkok routes

Looking for the cheapest, fastest or easiest route from London Heathrow to Bangkok? You could fly into the following airports instead.

London to Bangkok: Flight information

The things to know before you go.

Cheapest flight found	R 6,005
Cheapest month to fly	June
Average flight time	11 hrs, 33 mins
Most popular airline	Thai Airways
Average flights per week	51

Finding cheap flights from London Heathrow to Bangkok: Frequently asked questions

How many airports are there in Bangkok?

There are 2 airports in Bangkok: Don Mueang and Bangkok Suvarnabhumi.

How much are return flights from London Heathrow to Bangkok?

The best price we found for a return flight from London Heathrow to Bangkok is R 8,479. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from London Heathrow to Bangkok?

11 hours and 33 minutes is the average flight time from London Heathrow to Bangkok.

Which airlines fly direct from London Heathrow to Bangkok?

Thai Airways, Air Canada and EVA Air fly direct from London Heathrow to Bangkok.

How many flights are there a week from London Heathrow to Bangkok?

As of March 2025, there are 153 flights per week flying from London Heathrow to Bangkok.

When is the cheapest time to fly from London Heathrow to Bangkok?

The cheapest month to fly from London Heathrow to Bangkok is usually March 2025.

Which is the cheapest airport to fly into in Bangkok?

If you're flying from London Heathrow Airport, the cheapest airport near Bangkok is Bangkok Suvarnabhumi – which is 28.5 km away from the centre of Bangkok. We've found flights into this airport from R 8,479.

Which upcoming date is cheapest to fly from London Heathrow Airport to Bangkok on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Bangkok on Thursday, 1 May 2025.

Can I get a direct flight from London Heathrow Airport to Bangkok?

Yes – the average flight time is 11 hours and 33 minutes.

How can I get the best flight deal from London Heathrow Airport to Bangkok?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bangkok but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Bangkok?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Bangkok is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Bangkok?

In March, the average temperature is usually around 30°C. April is typically the warmest month in Bangkok, when it usually averages around 35°C. You can expect the least rain in December. The coldest month is November, with temperatures averaging 22°C. The rainiest month is September.

Which is the cheapest airline to fly from London Heathrow Airport to Bangkok with?

Currently, Saudia and Thai Airways offer the cheapest flight tickets to Bangkok.

Travelling from London Heathrow Airport (LHR) to Bangkok: what you need to know

Around 12 hours 47 minutes is how long you can expect to be in the air on a direct flight from London Heathrow Airport to Bangkok.
London Heathrow Airport is located in London. Operating on the UTC+7 timezone, Bangkok is 7 hours ahead of London.
London Heathrow Airport (LHR) to Suvarnabhumi Airport (BKK) is the most popular route, with 30 weekly flights to pick from. If you prefer a later start to the day, the last flight from LHR to BKK is with Thai Airways at 21:35. Opt for the first departure operated by Thai Airways at 11:50 if you want to get on your way earlier.
To ensure you get on your flight from LHR to Bangkok, allow plenty of time to check in and find your gate. Arriving two hours ahead of international departures and one hour before domestic flights is the general rule.
Travelling during a popular month like July? Major public holidays and other high seasons can mean longer lines at security. Play things extra safe and arrive up to four hours before an international flight and two hours before domestic departures.
You can catch a direct flight from London Heathrow Airport to Bangkok that lands at Suvarnabhumi Airport (BKK).
Thai Airways is a well-known carrier that offers direct flights from London Heathrow Airport to Bangkok.
We make it easy to find a flight from LHR to Bangkok that includes a stopover. To see all your options, uncheck 'Direct flights only.' Then, simply pick a flight offering a stop long enough to tour the city of your choice. Major stopovers include:
- Kuala Lumpur International Airport (KUL)
- Chhatrapati Shivaji International Airport (BOM)
- Hong Kong International Airport (HKG)
When travelling to Thailand for tourism purposes, you'll need an e-visa if you have a passport from United Kingdom. However, visa rules are subject to change and you may need additional documents depending on the length and purpose of your visit. Always check the latest guidelines before reserving your cheap ticket from London Heathrow Airport to Bangkok.
LHR is around 31 kilometres from central London. If you're catching a cab, driving or ride-sharing from the centre, it'll take you 57 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the trip time to be approximately 1 hour and 1 minute.
Catching an early flight from London Heathrow Airport to Bangkok? Avoid the hassle of rushing to the airport (and get some extra shut-eye) by choosing one of these stays near LHR:

How to find the cheapest flights from London Heathrow Airport (LHR) to Bangkok

R 6,005 is the best price for a one-way ticket from London Heathrow Airport to Bangkok. Return flights start from R 8,479. These prices may change depending on demand and availability.
To pick up cheap tickets from LHR to Bangkok, reserve your journey 6 months before your departure.
Schedule your trip for February. That's the cheapest month for tickets from London Heathrow Airport to Bangkok. If you have flexibility with your dates, use the 'Whole month' tool to find the lowest price across each month.
Snapping up a cheap ticket from LHR to Bangkok is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch when the price has fallen.
Tailor your trip with filters. Pick your departure and arrival times, total journey duration and airlines. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from London Heathrow Airport to Bangkok.

Airports in Bangkok

Suvarnabhumi Airport (BKK)

Suvarnabhumi Airport (BKK) to central Bangkok is around 35 minutes by car. It's approximately 32 kilometres away.
It takes roughly 1 hour and 6 minutes to get there by public transport.
Consider staying in a hotel close to BKK if you have a late flight from London Heathrow Airport to Bangkok. Settle into one of these options and skip the long transfer:

Don Mueang International Airport (DMK)

Once your flight from London Heathrow Airport to Bangkok has touched down, you can make your way to the city centre in around 30 minutes by car. Central Bangkok is roughly 27 kilometres from Don Mueang International Airport (DMK).
You can expect the journey to take roughly 1 hour and 5 minutes on public transport.
Hang the 'Do not disturb' sign on your door and relax at a hotel near DMK. Here are a few options where you can settle in after your flight from LHR to Bangkok:

Best time to go to Bangkok

It's time to work out your dates for your flight from London Heathrow Airport to Bangkok. July is the busiest month to visit Bangkok. If you prefer a more low-key vibe, go in April.
Before you book a flight from London Heathrow Airport to Bangkok, think about the kind of weather you enjoy. April is the warmest month in Bangkok, with temperatures ranging from 26ºC to 37ºC.
December sees average temperatures of between 19ºC and 33ºC. Search for cheap flights from LHR to Bangkok around that time if you like cooler conditions.

More about Bangkok

When it comes to looking for somewhere to rest your head, you'll find the best places to stay in Bangkok right here. Explore these options once you've locked in your flight from London Heathrow Airport to Bangkok:
All great journeys should include some sightseeing. Grand Palace, Wat Arun and Wat Phra Kaew are must-visits when exploring Bangkok.

Complete your Bangkok trip with a car rental

We use the same magic that helped you find your cheap flight from London Heathrow Airport to Bangkok to track down amazing deals on car rentals. Search for your ride in seconds and compare offers in one place. Plus we give you all the info you need on car rentals in Bangkok, from the most popular rental company to the best time to book.