A large indoor space with a golden pagoda-like structure surrounded by white flowers and yellow rope barriers.

฿14,580 Cheap Flights from London (LHR) to Bangkok (BKK)

View ฿14,580 flight on Fri, 4 Sept 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Suvarnabhumi International Airport (BKK)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from London (LHR) to Bangkok (BKK)

Prices were available within the past 7 days and start at ฿14,580 for one-way flights and ฿20,315 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Xiamen Airlines
Sun, 13 Sept - Sat, 3 Oct
LHR
London
BKK
Bangkok
฿20,315 Return, found 1 day ago
฿20,315
Return
found 1 day ago
Select Xiamen Airlines flight, departing Sun, 13 Sept from London to Bangkok, returning Sat, 3 Oct, priced at ฿20,315 found 1 day ago
China Eastern Airlines
Wed, 4 Nov - Sun, 15 Nov
LHR
London
BKK
Bangkok
฿20,940 Return, found 5 hours ago
฿20,940
Return
found 5 hours ago
Select China Eastern Airlines flight, departing Wed, 4 Nov from London to Bangkok, returning Sun, 15 Nov, priced at ฿20,940 found 5 hours ago
China Southern Airlines
Sun, 22 Nov - Tue, 22 Dec
LHR
London
BKK
Bangkok
฿24,640 Return, found 1 day ago
฿24,640
Return
found 1 day ago
Select China Southern Airlines flight, departing Sun, 22 Nov from London to Bangkok, returning Tue, 22 Dec, priced at ฿24,640 found 1 day ago
Scandinavian Airlines
Thu, 5 Nov - Sun, 22 Nov
LHR
London
BKK
Bangkok
฿25,185 Return, found 3 hours ago
฿25,185
Return
found 3 hours ago
Select Scandinavian Airlines flight, departing Thu, 5 Nov from London to Bangkok, returning Sun, 22 Nov, priced at ฿25,185 found 3 hours ago
Etihad Airways
Tue, 1 Sept - Mon, 21 Sept
LHR
London
BKK
Bangkok
฿25,585 Return, found 1 day ago
฿25,585
Return
found 1 day ago
Select Etihad Airways flight, departing Tue, 1 Sept from London to Bangkok, returning Mon, 21 Sept, priced at ฿25,585 found 1 day ago
Royal Jordanian
Wed, 11 Nov - Tue, 1 Dec
LHR
London
BKK
Bangkok
฿26,155 Return, found 10 hours ago
฿26,155
Return
found 10 hours ago
Select Royal Jordanian flight, departing Wed, 11 Nov from London to Bangkok, returning Tue, 1 Dec, priced at ฿26,155 found 10 hours ago
Gulf Air
Thu, 3 Sept - Wed, 23 Sept
LHR
London
BKK
Bangkok
฿26,250 Return, found 1 hour ago
฿26,250
Return
found 1 hour ago
Select Gulf Air flight, departing Thu, 3 Sept from London to Bangkok, returning Wed, 23 Sept, priced at ฿26,250 found 1 hour ago
IndiGo
Wed, 2 Sept - Tue, 15 Sept
LHR
London
BKK
Bangkok
฿26,716 Return, found 3 hours ago
฿26,716
Return
found 3 hours ago
Select IndiGo flight, departing Wed, 2 Sept from London to Bangkok, returning Tue, 15 Sept, priced at ฿26,716 found 3 hours ago
Finnair
Mon, 30 Nov - Thu, 18 Feb
LHR
London
BKK
Bangkok
฿27,945 Return, found 2 days ago
฿27,945
Return
found 2 days ago
Select Finnair flight, departing Mon, 30 Nov from London to Bangkok, returning Thu, 18 Feb, priced at ฿27,945 found 2 days ago
Oman Air
Fri, 4 Sept - Sat, 19 Sept
LHR
London
BKK
Bangkok
฿28,325 Return, just found
฿28,325
Return
just found
Select Oman Air flight, departing Fri, 4 Sept from London to Bangkok, returning Sat, 19 Sept, priced at ฿28,325 just found

Alternative airports near Bangkok

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Suvarnabhumi Intl. BKK. Cheapest option available. Average driving time to city centre is 23 minutes. Flights from ฿25,900
BKK
Suvarnabhumi Intl.
Cheapest
Average driving time to city centre23 min
Flights from ฿25,900

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

November is typically the cheapest month to fly

From ฿19,376 - ฿28,765 per traveller.

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 ฿20,315. 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.

Travel information

Origin airport
Heathrow
Destination airport
Suvarnabhumi Intl.
Airlines serving
Air France, Asiana Airlines, Austrian Airlines, British Airways, Cathay Pacific, EVA Airways, Emirates, Etihad Airways, Finnair, Gulf Air, Korean Air, Lufthansa, Malaysia Airlines, Oman Air, Saudia, Singapore Airlines, SriLankan Airlines, Swiss International Air Lines, Thai Airways International, Vietnam Airlines
Roundtrip price
฿20,315
Distance
9520 km
Average flight time
17 hours 40 mins

Book with confidence

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 ฿14,580 and roundtrip prices from ฿20,315. 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.
Perfect flights from London to Bangkok
*Available to Expedia members.