฿11,180 Cheap Flights from London (LHR) to Bangkok (BKK)

View ฿11,180 flight on Sun, 21 Sept 2025Opens in a new window

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

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

    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 ฿11,180 for one-way flights and ฿15,775 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Shenzhen Airlines
Fri, 19 Sept - Sat, 4 Oct
LHR
London
BKK
Bangkok
฿15,775 Return, found 1 day ago
฿15,775
Return
found 1 day ago
Select Shenzhen Airlines flight, departing Fri, 19 Sept from London to Bangkok, returning Sat, 4 Oct, priced at ฿15,775 found 1 day ago
Air China
Tue, 30 Dec - Wed, 21 Jan
LHR
London
BKK
Bangkok
฿19,055 Return, just found
฿19,055
Return
just found
Select Air China flight, departing Tue, 30 Dec from London to Bangkok, returning Wed, 21 Jan, priced at ฿19,055 just found
Hainan Airlines
Wed, 17 Sept - Tue, 7 Oct
LHR
London
BKK
Bangkok
฿20,065 Return, found 4 days ago
฿20,065
Return
found 4 days ago
Select Hainan Airlines flight, departing Wed, 17 Sept from London to Bangkok, returning Tue, 7 Oct, priced at ฿20,065 found 4 days ago
China Eastern Airlines
Tue, 18 Nov - Thu, 11 Dec
LHR
London
BKK
Bangkok
฿20,330 Return, found 1 day ago
฿20,330
Return
found 1 day ago
Select China Eastern Airlines flight, departing Tue, 18 Nov from London to Bangkok, returning Thu, 11 Dec, priced at ฿20,330 found 1 day ago
Air India
Thu, 30 Oct - Mon, 3 Nov
LHR
London
BKK
Bangkok
฿21,155 Return, found 1 day ago
฿21,155
Return
found 1 day ago
Select Air India flight, departing Thu, 30 Oct from London to Bangkok, returning Mon, 3 Nov, priced at ฿21,155 found 1 day ago
China Southern Airlines
Sat, 29 Nov - Mon, 22 Dec
LHR
London
BKK
Bangkok
฿21,535 Return, found 1 hour ago
฿21,535
Return
found 1 hour ago
Select China Southern Airlines flight, departing Sat, 29 Nov from London to Bangkok, returning Mon, 22 Dec, priced at ฿21,535 found 1 hour ago
Kuwait Airways
Wed, 18 Feb - Wed, 4 Mar
LHR
London
BKK
Bangkok
฿22,720 Return, found 12 hours ago
฿22,720
Return
found 12 hours ago
Select Kuwait Airways flight, departing Wed, 18 Feb from London to Bangkok, returning Wed, 4 Mar, priced at ฿22,720 found 12 hours ago
Etihad Airways
Tue, 24 Feb - Tue, 10 Mar
LHR
London
BKK
Bangkok
฿23,135 Return, found 2 days ago
฿23,135
Return
found 2 days ago
Select Etihad Airways flight, departing Tue, 24 Feb from London to Bangkok, returning Tue, 10 Mar, priced at ฿23,135 found 2 days ago
Gulf Air
Thu, 11 Sept - Mon, 22 Sept
LHR
London
BKK
Bangkok
฿24,810 Return, found 3 days ago
฿24,810
Return
found 3 days ago
Select Gulf Air flight, departing Thu, 11 Sept from London to Bangkok, returning Mon, 22 Sept, priced at ฿24,810 found 3 days ago
Austrian Airlines
Wed, 21 Jan - Thu, 12 Feb
LHR
London
BKK
Bangkok
฿24,860 Return, found 1 day ago
฿24,860
Return
found 1 day ago
Select Austrian Airlines flight, departing Wed, 21 Jan from London to Bangkok, returning Thu, 12 Feb, priced at ฿24,860 found 1 day ago

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

May is typically the cheapest month to fly

From ฿16,133 - ฿25,182 per traveller.

Graph displaying average flight prices per month

Flight from London to Bangkok route information
Origin airport
Heathrow
Destination airport
Suvarnabhumi Intl.
Airlines serving
Air France, Air India, Austrian Airlines, British Airways, Cathay Pacific, EVA Airways, Etihad Airways, Finnair, Gulf Air, KLM, Kuwait Airways, Lufthansa, Malaysia Airlines, Oman Air, Qatar Airways, SriLankan Airlines, Swiss International Air Lines, Thai Airways International, Turkish Airlines, Vietnam Airlines
Return price
฿15,775
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 Bangkok, 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 ฿11,180 and roundtrip prices from ฿15,775. 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 Bangkok 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 LHR to BKK 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 ฿15,775. 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

Bangkok Airports

Bangkok

London Airports

London

Gatwick to Bangkok
฿17,680.00
Stansted to Bangkok
฿27,770.00
*Available to Expedia members.