$316 Cheap Flights from London (LHR) to Bangkok (BKK)

View $316 flight on Sat, Apr 11, 2026Opens 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 $316 for one-way flights and $477 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Shenzhen Airlines
Mon, Sep 15 - Mon, Oct 13
LHR
London
BKK
Bangkok
$477 Roundtrip, found 6 days ago
$477
Roundtrip
found 6 days ago
Select Shenzhen Airlines flight, departing Mon, Sep 15 from London to Bangkok, returning Mon, Oct 13, priced at $477 found 6 days ago
Air China
Thu, Jun 18 - Fri, Jul 3
LHR
London
BKK
Bangkok
$482 Roundtrip, found 1 day ago
$482
Roundtrip
found 1 day ago
Select Air China flight, departing Thu, Jun 18 from London to Bangkok, returning Fri, Jul 3, priced at $482 found 1 day ago
Hainan Airlines
Wed, Oct 15 - Tue, Oct 21
LHR
London
BKK
Bangkok
$580 Roundtrip, found 3 hours ago
$580
Roundtrip
found 3 hours ago
Select Hainan Airlines flight, departing Wed, Oct 15 from London to Bangkok, returning Tue, Oct 21, priced at $580 found 3 hours ago
China Southern Airlines
Thu, Nov 27 - Fri, Dec 5
LHR
London
BKK
Bangkok
$597 Roundtrip, found 2 days ago
$597
Roundtrip
found 2 days ago
Select China Southern Airlines flight, departing Thu, Nov 27 from London to Bangkok, returning Fri, Dec 5, priced at $597 found 2 days ago
China Eastern Airlines
Thu, Nov 13 - Mon, Dec 1
LHR
London
BKK
Bangkok
$619 Roundtrip, found 6 days ago
$619
Roundtrip
found 6 days ago
Select China Eastern Airlines flight, departing Thu, Nov 13 from London to Bangkok, returning Mon, Dec 1, priced at $619 found 6 days ago
Swiss International Air Lines
Wed, Dec 3 - Tue, Dec 16
LHR
London
BKK
Bangkok
$628 Roundtrip, found 2 days ago
$628
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Wed, Dec 3 from London to Bangkok, returning Tue, Dec 16, priced at $628 found 2 days ago
Air India
Thu, Jun 18 - Fri, Jul 3
LHR
London
BKK
Bangkok
$629 Roundtrip, found 1 day ago
$629
Roundtrip
found 1 day ago
Select Air India flight, departing Thu, Jun 18 from London to Bangkok, returning Fri, Jul 3, priced at $629 found 1 day ago
Saudia
Mon, Apr 6 - Sat, Apr 18
LHR
London
BKK
Bangkok
$680 Roundtrip, found 4 days ago
$680
Roundtrip
found 4 days ago
Select Saudia flight, departing Mon, Apr 6 from London to Bangkok, returning Sat, Apr 18, priced at $680 found 4 days ago
Austrian Airlines
Wed, Dec 3 - Mon, Dec 22
LHR
London
BKK
Bangkok
$683 Roundtrip, found 3 days ago
$683
Roundtrip
found 3 days ago
Select Austrian Airlines flight, departing Wed, Dec 3 from London to Bangkok, returning Mon, Dec 22, priced at $683 found 3 days ago
Gulf Air
Thu, Jun 18 - Fri, Jul 3
LHR
London
BKK
Bangkok
$703 Roundtrip, found 1 day ago
$703
Roundtrip
found 1 day ago
Select Gulf Air flight, departing Thu, Jun 18 from London to Bangkok, returning Fri, Jul 3, priced at $703 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 $497 - $789 per traveler.

Graph displaying average flight prices per month

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 center is 23 minutes. Flights from $948
BKK
Suvarnabhumi Intl.
Cheapest
Average driving time to city center23 min
Flights from $948
Flights from London (LHR) to Bangkok (BKK)
Origin airport
Heathrow
Destination airport
Suvarnabhumi Intl.
Airlines serving
Air China, Air India, Austrian Airlines, British Airways, Cathay Pacific, China Southern Airlines, EVA Airways, Emirates, Etihad Airways, Finnair, Gulf Air, Kuwait Airways, Lufthansa, Malaysia Airlines, Oman Air, Qatar Airways, Saudia, Singapore Airlines, Swiss International Air Lines, Vietnam Airlines
Roundtrip price
$476
Distance
5950 mi
Average flight time
17 hours 40 mins

London to Bangkok Flights

The cheapest times to fly from London to Bangkok

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Bangkok are during the month of September. You can find some of the cheapest flights from London to Bangkok with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Bangkok

Sunday is one of the best days to book for cheap flights from London to Bangkok: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Bangkok

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Bangkok in 2025. You can also book with separate airlines for your outbound and return journeys, from $316 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Bangkok flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Bangkok airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK) cost?
Get a cheap one-way flight from $316 or cheap return flight from $477 from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK)?
The cheapest month to fly from LHR to BKK is September, when demand is low. Off-peak months are usually when you'll find lower airfares between these airports.
Which airlines fly direct from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK)?
Jump on a direct flight with Thai Airways International and travel straight from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK).
What is the cheapest airline that flies from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK)?
While prices may vary depending on your travel dates, EVA Air and Thai Airways International are go-to choices for flights between Heathrow Airport (LHR) and Suvarnabhumi Intl. Airport (BKK). You can also compare airlines on Expedia and use the "Sort by" filter to find the best deal for your LHR to BKK flight.
How many flights per day from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK)?
Every day on average, 3 direct flights operate from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK). Select the departure time that works for you.
What are the most popular departure times for flights from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK)?
The 9 PM departures from LHR to BKK are the most sought after. Prices can be higher for these popular slots. If you want to save money, book during off-peak hours.
What day of the week has the most flights from LHR to BKK?
Fly on a Thursday if you're looking for the best selection of flights from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK).
What is the earliest flight from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK)?
Heathrow Airport (LHR)'s earliest flight to Suvarnabhumi Intl. Airport (BKK) departs at approximately 11:50AM UTC+0. With a total travel time of 11h 25m, you'll land at around 6:15AM UTC+7.
How long does it take to fly from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK)?
Flights from LHR to BKK have an average travel time of 11 hours and 25 minutes. The distance between these two airports is 6,000 mi.
What airline has the least delays from LHR to BKK?
Air Canada has the strongest track record for on-time direct flights from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK), with an on-time score of 83%. Use the Expedia App to see your journey status before you take off and receive notifications about any trip changes.
What is the best time to fly from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK)?
Choose a flight from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK) that leaves before 3 PM to reduce the likelihood of delays. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Bangkok from Heathrow Airport (LHR)?
Suvarnabhumi Intl. Airport (BKK) is the only airport in Bangkok with direct flights from Heathrow Airport (LHR). Check out the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK) last-minute?
Waiting until just before your trip to book your flight from LHR to BKK often results in higher prices. While you may find some last-minute deals, they're not always guaranteed. Keep your travel plans flexible to boost your chances of scoring a bargain.
Is it cheaper to book a LHR to BKK flight and hotel package?
Compared with arranging flights and hotels separately, booking a LHR to BKK flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place takes the hassle out of travel planning. Just secure your flights and select from our extensive range of stays, then customize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Suvarnabhumi Intl. Airport (BKK)?
If you booked your LHR to BKK flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

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*Available to One Key members.