S$557 Cheap Flights from London to Bangkok

View S$557 flight on Mon, 1 Sep, 2025Opens in a new window

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

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Cheap Flights from London to Bangkok (LHR-BKK)

Prices were available within the past 7 days and start at S$557 for one-way flights and S$821 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Mon, 1 Dec - Sun, 7 Dec
LHR
London
BKK
Bangkok
S$821 Return, found 6 days ago
S$821
Return
found 6 days ago
Select China Southern Airlines flight, departing Mon, 1 Dec from London to Bangkok, returning Sun, 7 Dec, priced at S$821 found 6 days ago
Kuwait Airways
Fri, 19 Sep - Sun, 28 Sep
LHR
London
BKK
Bangkok
S$1,020 Return, found 1 day ago
S$1,020
Return
found 1 day ago
Select Kuwait Airways flight, departing Fri, 19 Sep from London to Bangkok, returning Sun, 28 Sep, priced at S$1,020 found 1 day ago
Etihad Airways
Mon, 8 Sep - Mon, 22 Sep
LHR
London
BKK
Bangkok
S$1,022 Return, found 6 days ago
S$1,022
Return
found 6 days ago
Select Etihad Airways flight, departing Mon, 8 Sep from London to Bangkok, returning Mon, 22 Sep, priced at S$1,022 found 6 days ago
Oman Air
Mon, 1 Sep - Wed, 17 Sep
LHR
London
BKK
Bangkok
S$1,074 Return, found 2 days ago
S$1,074
Return
found 2 days ago
Select Oman Air flight, departing Mon, 1 Sep from London to Bangkok, returning Wed, 17 Sep, priced at S$1,074 found 2 days ago
Gulf Air
Thu, 13 Nov - Wed, 19 Nov
LHR
London
BKK
Bangkok
S$1,085 Return, just found
S$1,085
Return
just found
Select Gulf Air flight, departing Thu, 13 Nov from London to Bangkok, returning Wed, 19 Nov, priced at S$1,085 just found
Qatar Airways
Sat, 6 Sep - Sat, 13 Sep
LHR
London
BKK
Bangkok
S$1,123 Return, found 1 day ago
S$1,123
Return
found 1 day ago
Select Qatar Airways flight, departing Sat, 6 Sep from London to Bangkok, returning Sat, 13 Sep, priced at S$1,123 found 1 day ago
British Airways
Fri, 19 Sep - Thu, 25 Sep
LHR
London
BKK
Bangkok
S$1,131 Return, found 1 day ago
S$1,131
Return
found 1 day ago
Select British Airways flight, departing Fri, 19 Sep from London to Bangkok, returning Thu, 25 Sep, priced at S$1,131 found 1 day ago
Swiss International Air Lines
Wed, 17 Sep - Wed, 24 Sep
LHR
London
BKK
Bangkok
S$1,132 Return, found 4 days ago
S$1,132
Return
found 4 days ago
Select Swiss International Air Lines flight, departing Wed, 17 Sep from London to Bangkok, returning Wed, 24 Sep, priced at S$1,132 found 4 days ago
Air Astana
Sun, 19 Oct - Thu, 23 Oct
LHR
London
BKK
Bangkok
S$1,158 Return, found 1 day ago
S$1,158
Return
found 1 day ago
Select Air Astana flight, departing Sun, 19 Oct from London to Bangkok, returning Thu, 23 Oct, priced at S$1,158 found 1 day ago
Malaysia Airlines
Thu, 13 Nov - Wed, 19 Nov
LHR
London
BKK
Bangkok
S$1,162 Return, just found
S$1,162
Return
just found
Select Malaysia Airlines flight, departing Thu, 13 Nov from London to Bangkok, returning Wed, 19 Nov, priced at S$1,162 just found

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

May is typically the cheapest month to fly

From S$636 - S$1,020 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, All Nippon Airways, Austrian Airlines, British Airways, 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, Turkish Airlines
Return price
S$820
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$821. 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$749.60
London City to Bangkok
S$1,117.70
*Available to Expedia members.