$706 Cheap Flights from London Heathrow to Bangkok in 2025

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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.$706 per passenger.Departing Wed, 21 Jan, returning Wed, 18 Mar.Return flight with Emirates.Outbound indirect flight with Emirates, departs from London Heathrow on Wed, 21 Jan, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Emirates, departs from Bangkok Suvarnabhumi on Wed, 18 Mar, arriving in London Heathrow.Price includes taxes and charges.From $706, select.

Bangkok.$706 per passenger.Departing Tue, 23 Sep, returning Tue, 14 Oct.Return flight with Emirates.Outbound indirect flight with Emirates, departs from London Heathrow on Tue, 23 Sep, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Emirates, departs from Bangkok Suvarnabhumi on Tue, 14 Oct, arriving in London Heathrow.Price includes taxes and charges.From $706, select.

Bangkok.$771 per passenger.Departing Wed, 4 Feb, returning Wed, 4 Mar.Return flight with Emirates.Outbound indirect flight with Emirates, departs from London Heathrow on Wed, 4 Feb, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Emirates, departs from Bangkok Suvarnabhumi on Wed, 4 Mar, arriving in London Heathrow.Price includes taxes and charges.From $771, select.

Bangkok.$807 per passenger.Departing Wed, 25 Jun, returning Thu, 3 Jul.Return flight with Hainan Airlines.Outbound indirect flight with Hainan Airlines, departs from London Heathrow on Wed, 25 Jun, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Hainan Airlines, departs from Bangkok Suvarnabhumi on Thu, 3 Jul, arriving in London Heathrow.Price includes taxes and charges.From $807, select.

Bangkok.$833 per passenger.Departing Tue, 25 Nov, returning Sat, 6 Dec.Return flight with Emirates.Outbound indirect flight with Emirates, departs from London Heathrow on Tue, 25 Nov, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Emirates, departs from Bangkok Suvarnabhumi on Sat, 6 Dec, arriving in London Heathrow.Price includes taxes and charges.From $833, select.

Bangkok.$834 per passenger.Departing Mon, 20 Oct, returning Mon, 10 Nov.Return flight with Emirates.Outbound indirect flight with Emirates, departs from London Heathrow on Mon, 20 Oct, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Emirates, departs from Bangkok Suvarnabhumi on Mon, 10 Nov, arriving in London Heathrow.Price includes taxes and charges.From $834, select.

Bangkok.$834 per passenger.Departing Thu, 2 Oct, returning Sun, 19 Oct.Return flight with Emirates.Outbound indirect flight with Emirates, departs from London Heathrow on Thu, 2 Oct, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Emirates, departs from Bangkok Suvarnabhumi on Sun, 19 Oct, arriving in London Heathrow.Price includes taxes and charges.From $834, select.

Bangkok.$836 per passenger.Departing Wed, 17 Sep, returning Mon, 1 Dec.Return flight with China Southern.Outbound indirect flight with China Southern, departs from London Heathrow on Wed, 17 Sep, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Southern, departs from Bangkok Suvarnabhumi on Mon, 1 Dec, arriving in London Heathrow.Price includes taxes and charges.From $836, 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 October.

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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	$706
Cheapest month to fly	September
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 $706. 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 June 2025, there are 102 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 June 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 $706.

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 Tuesday, 23 September 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 June, the average temperature is usually around 29°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, Emirates and Thai Airways offer the cheapest flight tickets to Bangkok.

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

The average length of a direct flight from London Heathrow Airport to Bangkok is 12 hours 55 minutes.
The timezone in Bangkok is UTC+7. The city is seven hours ahead of London, where London Heathrow Airport is located.
London Heathrow Airport (LHR) to Suvarnabhumi Airport (BKK) is the most traveled route, with 21 flights a week to pick from. If you have things to do before leaving, the last flight from LHR to BKK is with EVA Air at 21:35. Opt for the first departure with Thai Airways International at 11:50 if you want to fly out earlier.
Leave plenty of time to catch your LHR to Bangkok flight. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.
Longer lines at security and check-in are more likely if you're heading away during high season, so give yourself some extra wiggle room. A good general rule for peak times? Get there up to four hours early for international flights and two hours for domestic departures.
Start your trip at LHR and travel straight to Suvarnabhumi Airport (BKK). That's where you can expect to touch down when searching for London Heathrow Airport to Bangkok tickets.
Keep your eyes peeled for deals with Thai Airways International. This airline operates direct flights from London Heathrow Airport to Bangkok.
We make it simple to book flight tickets from LHR to Bangkok with a stopover. To see the options, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to tour your chosen city. Some popular stopovers include:
- Frankfurt Airport (FRA)
- Kuala Lumpur International Airport (KUL)
- Chhatrapati Shivaji International Airport (BOM)
Located around 26 kilometres from the centre of London, LHR can be reached in about 55 minutes by car (depending on traffic). The journey on public transport takes roughly 1 hour.
Want a stress-free start to your trip? Stay near LHR. Whether you have an early flight from London Heathrow Airport to Bangkok or want to avoid feeling rushed, these hotels have you covered:
68.18% of flights that leave from London Heathrow Airport make it to their destination on time.

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

The best price we've seen for a one-way London Heathrow Airport to Bangkok flight is $537. The cheapest price for a return flight is $706. Keep in mind fares may change due to demand at the time of booking.
To pick up cheap flights from LHR to Bangkok, book your trip ten months before your departure date.
The best month for finding cheap London Heathrow Airport to Bangkok tickets is February. Use the 'Whole month' tool to compare prices, then choose the dates that offer the lowest fares.
You don't need to keep checking in to find out if fares have dropped when you create a Price Alert. We'll notify you the moment there's an extra saving on cheap flights from LHR to Bangkok.
Snag an affordable flight from London Heathrow Airport to Bangkok with the help of our filters. Select your preferred duration, number of stops and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Bangkok

Suvarnabhumi Airport (BKK)

Suvarnabhumi Airport (BKK) is around 32 kilometres from the centre of Bangkok. If you're opting for a ride-share or a cab, the drive will take roughly 35 minutes.
Getting there by public transport takes around 1 hour 5 minutes.
Consider staying in a hotel close to BKK if you're coming in on a late flight from London Heathrow Airport to Bangkok. Pick one of these accommodation options and skip the long transfer:
Grab a Suvarnabhumi Airport rental car and discover Bangkok and beyond with your own wheels. Chic Car Rent, asap car hire and Hertz are top providers to choose from here.
For the best deal, book your ride from Suvarnabhumi Airport about four weeks ahead of your flight from LHR to Bangkok.

Don Mueang International Airport (DMK)

After your flight from London Heathrow Airport to Bangkok has hit the tarmac, 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).
If you travel by public transport, the ride to the centre takes 1 hour 5 minutes or so.
You'll find some comfortable places to drop your things at near DMK. Unwind and get cosy after your LHR to Bangkok flight at any of these perfectly located options:
Chic Car Rent, asap car hire and Hertz make collecting a Don Mueang International Airport rental car easy and quick. These providers are located in or around the terminal and will have you on the road before long.
Snap up a deal by booking your ride from DMK three weeks ahead of time. You can also expect to have a wider range of vehicles.

Best time to go to Bangkok

Before locking in your flights from London Heathrow Airport to Bangkok, consider which time of year is best for you. High season in Bangkok offers a bustling atmosphere and plenty to do, while the low season means you'll get cheaper deals on hotels and smaller crowds.
When booking your London Heathrow Airport to Bangkok flight ticket, think about what kind of weather works for you. April is the warmest month in Bangkok, with temperatures ranging from 26ºC (79ºF) to 37ºC (99ºF).
Search for cheap tickets from LHR to Bangkok in December if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 19ºC (66ºF) and 33ºC (91ºF) on average.

More about Bangkok

Start your Bangkok trip off on the right foot by choosing the ideal place to stay. As soon as you've booked your flight from London Heathrow Airport to Bangkok, browse our range of hotels including:
There are so many things to see and do in this city it can be hard to figure out where to begin. Wat Arun, Grand Palace and Wat Phra Kaew are highlights which should be on any well-planned Bangkok itinerary.

Explore more of Thailand

You've visited Bangkok, now it's time to explore other parts of Thailand. Journey around 467 kilometres north-east to Udon Thani to tick off its leading sights. From Nong Prajak Public Park to Krom Luang Prachaksinlapakhom Monument and Chinesisches Tor, there's plenty to keep you on the go.
Around 225 kilometres north-east of Bangkok, Nakhon Ratchasima is another essential stop in Thailand. Get a taste of what this destination has to offer at Art and Culture Centre, Vongchavalitkul University, Wat Pa Salwan (Burapha Chan Chedi) and บ้านสวนเกษตรอินทรีย์ (บ้านสวนในซอย).