฿12,645 Cheap Flights from London (LHR) to Bangkok (BKK)

View ฿12,645 flight on Mon, 18 May 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at ฿12,645 for one-way flights and ฿18,150 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air China
Sun, 13 Sept - Mon, 19 Oct
LHR
London
BKK
Bangkok
฿18,150 Return, just found
฿18,150
Return
just found
Select Air China flight, departing Sun, 13 Sept from London to Bangkok, returning Mon, 19 Oct, priced at ฿18,150 just found
Saudia
Wed, 6 May - Thu, 18 Jun
LHR
London
BKK
Bangkok
฿18,280 Return, found 4 days ago
฿18,280
Return
found 4 days ago
Select Saudia flight, departing Wed, 6 May from London to Bangkok, returning Thu, 18 Jun, priced at ฿18,280 found 4 days ago
China Eastern Airlines
Mon, 28 Sept - Wed, 14 Oct
LHR
London
BKK
Bangkok
฿20,225 Return, found 5 days ago
฿20,225
Return
found 5 days ago
Select China Eastern Airlines flight, departing Mon, 28 Sept from London to Bangkok, returning Wed, 14 Oct, priced at ฿20,225 found 5 days ago
Shenzhen Airlines
Fri, 6 Nov - Mon, 23 Nov
LHR
London
BKK
Bangkok
฿20,420 Return, found 16 hours ago
฿20,420
Return
found 16 hours ago
Select Shenzhen Airlines flight, departing Fri, 6 Nov from London to Bangkok, returning Mon, 23 Nov, priced at ฿20,420 found 16 hours ago
Hainan Airlines
Fri, 1 May - Thu, 14 May
LHR
London
BKK
Bangkok
฿22,075 Return, found 5 hours ago
฿22,075
Return
found 5 hours ago
Select Hainan Airlines flight, departing Fri, 1 May from London to Bangkok, returning Thu, 14 May, priced at ฿22,075 found 5 hours ago
Etihad Airways
Wed, 3 Jun - Wed, 17 Jun
LHR
London
BKK
Bangkok
฿24,355 Return, found 4 days ago
฿24,355
Return
found 4 days ago
Select Etihad Airways flight, departing Wed, 3 Jun from London to Bangkok, returning Wed, 17 Jun, priced at ฿24,355 found 4 days ago
Air India
Wed, 10 Jun - Wed, 17 Jun
LHR
London
BKK
Bangkok
฿24,535 Return, found 2 hours ago
฿24,535
Return
found 2 hours ago
Select Air India flight, departing Wed, 10 Jun from London to Bangkok, returning Wed, 17 Jun, priced at ฿24,535 found 2 hours ago
ITA Airways
Tue, 23 Feb - Tue, 2 Mar
LHR
London
BKK
Bangkok
฿26,465 Return, found 4 days ago
฿26,465
Return
found 4 days ago
Select ITA Airways flight, departing Tue, 23 Feb from London to Bangkok, returning Tue, 2 Mar, priced at ฿26,465 found 4 days ago
Qatar Airways
Mon, 4 May - Tue, 26 May
LHR
London
BKK
Bangkok
฿26,840 Return, just found
฿26,840
Return
just found
Select Qatar Airways flight, departing Mon, 4 May from London to Bangkok, returning Tue, 26 May, priced at ฿26,840 just found
Gulf Air
Thu, 4 Jun - Wed, 17 Jun
LHR
London
BKK
Bangkok
฿27,245 Return, found 2 hours ago
฿27,245
Return
found 2 hours ago
Select Gulf Air flight, departing Thu, 4 Jun from London to Bangkok, returning Wed, 17 Jun, priced at ฿27,245 found 2 hours ago

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 ฿24,495
BKK
Suvarnabhumi Intl.
Cheapest
Average driving time to city centre23 min
Flights from ฿24,495

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

May is typically the cheapest month to fly

From ฿17,642 - ฿23,374 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 ฿18,150. 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, Air India, Asiana Airlines, Austrian Airlines, Cathay Pacific, EVA Airways, Etihad Airways, Finnair, Gulf Air, IndiGo, Korean Air, Kuwait Airways, Lufthansa, Malaysia Airlines, Oman Air, Qatar Airways, Singapore Airlines, SriLankan Airlines, Swiss International Air Lines, Thai Airways International
Return price
฿18,150
Distance
9520 km
Average flight time
17 hours 40 mins
*Available to Expedia members.