€353 Cheap Flights London to Bangkok (LHR-BKK)

View €353 flight on Mon, 16 Mar 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK)

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Cheap flights from London to Bangkok (LHR-BKK)

Prices were available within the past 7 days and start at €353 for one-way flights and €490 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air China
Mon, 24 Nov - Mon, 8 Dec
LHR
London
BKK
Bangkok
€490 Return, found 2 days ago
€490
Return
found 2 days ago
Select Air China flight, departing Mon, 24 Nov from London to Bangkok, returning Mon, 8 Dec, priced at €490 found 2 days ago
Austrian Airlines
Tue, 13 Jan - Thu, 22 Jan
LHR
London
BKK
Bangkok
€506 Return, found 3 days ago
€506
Return
found 3 days ago
Select Austrian Airlines flight, departing Tue, 13 Jan from London to Bangkok, returning Thu, 22 Jan, priced at €506 found 3 days ago
Swiss International Air Lines
Mon, 16 Mar - Wed, 25 Mar
LHR
London
BKK
Bangkok
€524 Return, found 5 hours ago
€524
Return
found 5 hours ago
Select Swiss International Air Lines flight, departing Mon, 16 Mar from London to Bangkok, returning Wed, 25 Mar, priced at €524 found 5 hours ago
Saudia
Fri, 12 Sep - Thu, 18 Sep
LHR
London
BKK
Bangkok
€535 Return, found 1 hour ago
€535
Return
found 1 hour ago
Select Saudia flight, departing Fri, 12 Sep from London to Bangkok, returning Thu, 18 Sep, priced at €535 found 1 hour ago
Lufthansa
Thu, 4 Dec - Thu, 11 Dec
LHR
London
BKK
Bangkok
€544 Return, found 1 day ago
€544
Return
found 1 day ago
Select Lufthansa flight, departing Thu, 4 Dec from London to Bangkok, returning Thu, 11 Dec, priced at €544 found 1 day ago
Etihad Airways
Mon, 20 Oct - Thu, 6 Nov
LHR
London
BKK
Bangkok
€613 Return, found 3 days ago
€613
Return
found 3 days ago
Select Etihad Airways flight, departing Mon, 20 Oct from London to Bangkok, returning Thu, 6 Nov, priced at €613 found 3 days ago
Gulf Air
Tue, 20 Jan - Tue, 3 Mar
LHR
London
BKK
Bangkok
€636 Return, found 2 days ago
€636
Return
found 2 days ago
Select Gulf Air flight, departing Tue, 20 Jan from London to Bangkok, returning Tue, 3 Mar, priced at €636 found 2 days ago
Oman Air
Mon, 29 Sep - Thu, 13 Nov
LHR
London
BKK
Bangkok
€658 Return, found 2 days ago
€658
Return
found 2 days ago
Select Oman Air flight, departing Mon, 29 Sep from London to Bangkok, returning Thu, 13 Nov, priced at €658 found 2 days ago
British Airways
Thu, 2 Oct - Thu, 16 Oct
LHR
London
BKK
Bangkok
€671 Return, found 3 hours ago
€671
Return
found 3 hours ago
Select British Airways flight, departing Thu, 2 Oct from London to Bangkok, returning Thu, 16 Oct, priced at €671 found 3 hours ago
Qatar Airways
Thu, 2 Oct - Thu, 16 Oct
LHR
London
BKK
Bangkok
€677 Return, found 3 hours ago
€677
Return
found 3 hours ago
Select Qatar Airways flight, departing Thu, 2 Oct from London to Bangkok, returning Thu, 16 Oct, priced at €677 found 3 hours ago

Find the cheapest month to fly from London (LHR) to Bangkok (BKK)

May is typically the cheapest month to fly

From €427 - €666 per traveller.

Graph displaying average flight prices per month

London to Bangkok route information
Origin airport
Heathrow
Destination airport
Suvarnabhumi Intl.
Airlines serving
Air China, Air France, Austrian Airlines, British Airways, Cathay Pacific, China Airlines, EVA Airways, Emirates, Etihad Airways, Finnair, Gulf Air, KLM, Lufthansa, Malaysia Airlines, Oman Air, Qatar Airways, Saudia, Singapore Airlines, SriLankan Airlines, Swiss International Air Lines
Return price
€489
Distance
9520 km
Average flight time
17 hours 40 mins

Perfect flights from London to Bangkok

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to Bangkok. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Heathrow to Suvarnabhumi Intl. ticket options cater to your travel preferences, with incredible one-way fares from €353 and roundtrip prices from €490. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Suvarnabhumi Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Bangkok.

Frequently asked questions

How much is a flight from Heathrow Airport to Suvarnabhumi Intl. Airport (BKK)?
Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip flights between Heathrow Airport and Suvarnabhumi Intl. Airport (BKK) start from €490. Book now to score the best price for your trip. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from London Heathrow to Suvarnabhumi Airport?
The majority of flights can be cancelled online, but each airline has a different set of terms and conditions. If you do have to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from LHR to Suvarnabhumi Intl. Airport (BKK) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Heathrow Airport (LHR) to BKK flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Heathrow Airport (LHR) to Suvarnabhumi Airport?
Hounslow to Bang Phli is around 9,600 kilometres, so be prepared to spend quite a while in the air. Make sure you pack all the essentials, from your earplugs to your eye mask. Throw in a few snacks to nibble on throughout your journey too.
Which airlines fly direct from LHR to Bangkok Airport?
Many people opt to fly with Thai Airways International (TG) from Heathrow Airport to BKK. This top airline offers 60 flights every month, so you can easily find a flight time that's right for you. You could also have a look at the airfares with EVA Air (BR). This carrier operates 30 monthly flights between Hounslow and Bang Phli.
Are LHR to Suvarnabhumi Intl. Airport (BKK) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Heathrow Airport to Suvarnabhumi Intl. Airport (BKK) at the last minute could be your ticket to a fantastic deal. However, you might miss out on a flight altogether! If you'd rather not take any chances, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Explore a world of travel with Expedia

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