S$533 Cheap Flights from London to Bangkok

View S$533 flight on Sun, 14 Sep, 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

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

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from London to Bangkok (LHR-BKK)

Prices were available within the past 7 days and start at S$533 for one-way flights and S$991 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Wed, 1 Oct - Wed, 8 Oct
LHR
London
BKK
Bangkok
S$991 Return, found 1 day ago
S$991
Return
found 1 day ago
Select Etihad Airways flight, departing Wed, 1 Oct from London to Bangkok, returning Wed, 8 Oct, priced at S$991 found 1 day ago
Air India
Thu, 18 Sep - Thu, 2 Oct
LHR
London
BKK
Bangkok
S$999 Return, found 4 days ago
S$999
Return
found 4 days ago
Select Air India flight, departing Thu, 18 Sep from London to Bangkok, returning Thu, 2 Oct, priced at S$999 found 4 days ago
Kuwait Airways
Fri, 3 Oct - Tue, 7 Oct
LHR
London
BKK
Bangkok
S$1,010 Return, found 2 days ago
S$1,010
Return
found 2 days ago
Select Kuwait Airways flight, departing Fri, 3 Oct from London to Bangkok, returning Tue, 7 Oct, priced at S$1,010 found 2 days ago
China Southern Airlines
Tue, 4 Nov - Sun, 9 Nov
LHR
London
BKK
Bangkok
S$1,011 Return, found 5 days ago
S$1,011
Return
found 5 days ago
Select China Southern Airlines flight, departing Tue, 4 Nov from London to Bangkok, returning Sun, 9 Nov, priced at S$1,011 found 5 days ago
Qatar Airways
Wed, 3 Sep - Wed, 17 Sep
LHR
London
BKK
Bangkok
S$1,027 Return, found 2 days ago
S$1,027
Return
found 2 days ago
Select Qatar Airways flight, departing Wed, 3 Sep from London to Bangkok, returning Wed, 17 Sep, priced at S$1,027 found 2 days ago
British Airways
Sun, 21 Sep - Fri, 26 Sep
LHR
London
BKK
Bangkok
S$1,063 Return, found 2 days ago
S$1,063
Return
found 2 days ago
Select British Airways flight, departing Sun, 21 Sep from London to Bangkok, returning Fri, 26 Sep, priced at S$1,063 found 2 days ago
Oman Air
Thu, 15 Jan - Thu, 22 Jan
LHR
London
BKK
Bangkok
S$1,076 Return, found 3 hours ago
S$1,076
Return
found 3 hours ago
Select Oman Air flight, departing Thu, 15 Jan from London to Bangkok, returning Thu, 22 Jan, priced at S$1,076 found 3 hours ago
Gulf Air
Mon, 8 Sep - Tue, 16 Sep
LHR
London
BKK
Bangkok
S$1,094 Return, found 2 days ago
S$1,094
Return
found 2 days ago
Select Gulf Air flight, departing Mon, 8 Sep from London to Bangkok, returning Tue, 16 Sep, priced at S$1,094 found 2 days ago
China Eastern Airlines
Thu, 15 Jan - Thu, 22 Jan
LHR
London
BKK
Bangkok
S$1,119 Return, found 3 hours ago
S$1,119
Return
found 3 hours ago
Select China Eastern Airlines flight, departing Thu, 15 Jan from London to Bangkok, returning Thu, 22 Jan, priced at S$1,119 found 3 hours ago
Lufthansa
Wed, 3 Sep - Wed, 17 Sep
LHR
London
BKK
Bangkok
S$1,131 Return, found 2 days ago
S$1,131
Return
found 2 days ago
Select Lufthansa flight, departing Wed, 3 Sep from London to Bangkok, returning Wed, 17 Sep, priced at S$1,131 found 2 days ago

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

May is typically the cheapest month to fly

From S$632 - S$1,032 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 Airlines, EVA Airways, Etihad Airways, Finnair, Gulf Air, Japan Airlines, KLM, Kuwait Airways, Lufthansa, Malaysia Airlines, Oman Air, Qatar Airways, SriLankan Airlines, Swiss International Air Lines, Thai Airways International
Return price
S$991
Distance
9520 km
Average flight time
17 hours 40 mins

Flights from London to Bangkok

There are several airlines that operate frequent flights from London (LHR) to Bangkok (BKK) including

The earliest flight leaves Heathrow Airport at 11:50 and arrives at Suvarnabhumi Intl. Airport at 05:45. The last flight of the day departs London at 21:35 and arrives at Bangkok at 16:00.

The flight distance from London to Bangkok is about 9628 km, the shortest flight is 11 hours 15 minutes with Oman Air."

Expedia lets you search across the largest number of airlines and Bangkok flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your London Bangkok flight!

Browse through dozens of options and rest 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 to Bangkok trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Bangkok flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from London to Bangkok with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

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 S$991. 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

London Airports

London

Gatwick to Bangkok
S$709.33
London City to Bangkok
S$1,221.30
*Available to Expedia members.