Cheap Flights from London (LHR) to Bangkok (BKK) from HK$3,333~

View HK$3,333 flight on Wed, 10 Sep 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at HK$3,333 for one-way flights and HK$3,799 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Shenzhen Airlines
Mon, 8 Sep - Fri, 26 Sep
LHR
London
BKK
Bangkok
HK$3,799 Return, found 3 days ago
HK$3,799
Return
found 3 days ago
Select Shenzhen Airlines flight, departing Mon, 8 Sep from London to Bangkok, returning Fri, 26 Sep, priced at HK$3,799 found 3 days ago
Hainan Airlines
Wed, 3 Sep - Mon, 22 Sep
LHR
London
BKK
Bangkok
HK$4,402 Return, found 3 days ago
HK$4,402
Return
found 3 days ago
Select Hainan Airlines flight, departing Wed, 3 Sep from London to Bangkok, returning Mon, 22 Sep, priced at HK$4,402 found 3 days ago
China Southern Airlines
Wed, 12 Nov - Sun, 30 Nov
LHR
London
BKK
Bangkok
HK$4,705 Return, found 3 days ago
HK$4,705
Return
found 3 days ago
Select China Southern Airlines flight, departing Wed, 12 Nov from London to Bangkok, returning Sun, 30 Nov, priced at HK$4,705 found 3 days ago
China Eastern Airlines
Sun, 9 Nov - Sun, 23 Nov
LHR
London
BKK
Bangkok
HK$4,903 Return, found 3 days ago
HK$4,903
Return
found 3 days ago
Select China Eastern Airlines flight, departing Sun, 9 Nov from London to Bangkok, returning Sun, 23 Nov, priced at HK$4,903 found 3 days ago
Air India
Tue, 7 Oct - Sun, 19 Oct
LHR
London
BKK
Bangkok
HK$5,523 Return, found 3 days ago
HK$5,523
Return
found 3 days ago
Select Air India flight, departing Tue, 7 Oct from London to Bangkok, returning Sun, 19 Oct, priced at HK$5,523 found 3 days ago
Etihad Airways
Wed, 3 Sep - Mon, 15 Sep
LHR
London
BKK
Bangkok
HK$5,677 Return, found 23 hours ago
HK$5,677
Return
found 23 hours ago
Select Etihad Airways flight, departing Wed, 3 Sep from London to Bangkok, returning Mon, 15 Sep, priced at HK$5,677 found 23 hours ago
Kuwait Airways
Wed, 17 Sep - Tue, 30 Sep
LHR
London
BKK
Bangkok
HK$5,900 Return, found 5 days ago
HK$5,900
Return
found 5 days ago
Select Kuwait Airways flight, departing Wed, 17 Sep from London to Bangkok, returning Tue, 30 Sep, priced at HK$5,900 found 5 days ago
Gulf Air
Sun, 14 Sep - Mon, 22 Sep
LHR
London
BKK
Bangkok
HK$6,095 Return, found 3 days ago
HK$6,095
Return
found 3 days ago
Select Gulf Air flight, departing Sun, 14 Sep from London to Bangkok, returning Mon, 22 Sep, priced at HK$6,095 found 3 days ago
Qatar Airways
Tue, 9 Sep - Thu, 2 Oct
LHR
London
BKK
Bangkok
HK$6,231 Return, found 5 days ago
HK$6,231
Return
found 5 days ago
Select Qatar Airways flight, departing Tue, 9 Sep from London to Bangkok, returning Thu, 2 Oct, priced at HK$6,231 found 5 days ago
Cathay Pacific
Mon, 20 Oct - Sun, 26 Oct
LHR
London
BKK
Bangkok
HK$6,289 Return, found 3 days ago
HK$6,289
Return
found 3 days ago
Select Cathay Pacific flight, departing Mon, 20 Oct from London to Bangkok, returning Sun, 26 Oct, priced at HK$6,289 found 3 days ago

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

May is typically the cheapest month to fly

From HK$3,901 - HK$6,211 per traveller.

Graph displaying average flight prices per month

London to Bangkok route information
Origin airport
Heathrow
Destination airport
Suvarnabhumi Intl.
Airlines serving
Air France, Air India, Austrian Airlines, British Airways, Cathay Pacific, China Southern Airlines, EVA Airways, Emirates, Etihad Airways, Finnair, Gulf Air, Kuwait Airways, Malaysia Airlines, Oman Air, Qatar Airways, Saudia, SriLankan Airlines, Swiss International Air Lines, Thai Airways International, Turkish Airlines
Return price
HK$3,799
Distance
9520 km
Average flight time
17 hours 40 mins

Flights from London to Bangkok

Book cheap flights from London (LHR) to Bangkok (BKK) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from London (LHR) to Bangkok (BKK) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your London (LHR) to Bangkok (BKK) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Bangkok flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Bangkok and things to do in Bangkok for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Bangkok more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Bangkok is HK$3,333 now!

 

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 HK$3,799. 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 canceled 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 kilometers, 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.

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