Cheap Flights from London Heathrow to Bangkok

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Find the cheapest month or even day of the year to fly to Bangkok

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Flight deals from London Heathrow to Bangkok

Looking for a cheap last-minute deal or the best return flight from London Heathrow to Bangkok? Find the lowest prices on one-way and return tickets right here.

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Find the cheapest month to fly from London Heathrow to Bangkok

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Bangkok flights are currently cheapest in November.

Direct flights from London Heathrow to Bangkok

Alternative London Heathrow to Bangkok routes

Looking for the cheapest, fastest or easiest route from London Heathrow to Bangkok? You could fly into the following airports instead.

London to Bangkok: Flight information

The things to know before you go.
Cheapest flight found£373
Cheapest month to flyMay
Average flight time11 hrs, 33 mins
Most popular airlineThai Airways
Average flights per week51

Finding cheap flights from London Heathrow to Bangkok: Frequently asked questions

There are 2 airports in Bangkok: Don Mueang and Bangkok Suvarnabhumi.
The best price we found for a return flight from London Heathrow to Bangkok is £373. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
11 hours and 33 minutes is the average flight time from London Heathrow to Bangkok.
Thai Airways, Air Canada and EVA Air fly direct from London Heathrow to Bangkok.
As of May 2024, there are 51 flights per week flying from London Heathrow to Bangkok.
The cheapest month to fly from London Heathrow to Bangkok is usually May.
If you're flying from London Heathrow Airport, the cheapest airport near Bangkok is Bangkok Suvarnabhumi – which is 17.7 miles away from the centre of Bangkok. We've found flights into this airport from £373.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Bangkok on Tuesday, 28 May 2024.
Yes – the average flight time is 11 hours and 33 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bangkok but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Bangkok is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 30°C. April is typically the warmest month in Bangkok, when it usually averages around 35°C. You can expect the least rain in December. The coldest month is November, with temperatures averaging 22°C. The rainiest month is September.
Currently, British Airways and EVA Air offer the cheapest flight tickets to Bangkok.

Top tips for finding a cheap flight from London to Bangkok

Finding cheap flights from London to Bangkok is simple with Skyscanner. You can view all flights throughout the month to identify the most cost-effective dates for your journey. Additionally, set up a Price Alert to receive notifications about fluctuations in fare prices, which could help you secure the best deal.

Consider opting for direct flights if you prefer a faster journey. By selecting Direct Flights only during your search, you'll be able to see if non-stop options are available for your route.

Historical data shows May is the cheapest time to fly from London to Bangkok. Travel during this period to maximise your chances of securing a great deal.

Handy information about London airport

London Heathrow is one of the major gateways to London, with five operational terminals. Terminal 2, or the Queen's Terminal, is focused on international travel, offering shops, restaurants, and lounges for passenger convenience. Terminal 3 caters to a mix of domestic and international flights, and like its counterparts, it is well-equipped with various retail outlets and eateries. Terminal 4 is tailored primarily for long-haul international flights, providing an array of shopping and dining facilities to ensure a comfortable wait for travellers.

Terminal 5 is unique, divided into East and West buildings – the East handles domestic and international flights, including long-haul, while the West is a hub for British Airways flights. This terminal also boasts an extensive selection of shops and restaurants. Meanwhile, Terminal 4C, a recent addition established in response to the COVID-19 pandemic, is a specialised facility for processing international arrivals subject to quarantine requirements.

Bangkok airport: good to know

Bangkok is home to two major airports, Suvarnabhumi Airport and Don Mueang International Airport. Suvarnabhumi Airport, commonly regarded as Bangkok's main airport, has two terminals handling a mix of domestic and international flights. A diverse range of transport options, including an Airport Rail Link, connects travellers with the city centre seamlessly. This facility is known for accommodating both full-service and low-cost carriers, offering a variety of travelling cost options.

Meanwhile, Don Mueang International Airport also features two terminals: Terminal 1, which supports domestic and international flights, and Terminal 2, which caters primarily to low-cost carriers. Like Suvarnabhumi, Don Mueang facilitates easy travel to and from the city with multiple transportation links. Both airports serve as vital gateways to Bangkok and the broader region, ensuring that passengers can access a wide selection of flights and services. For a stress-free start to your trip when flying from London to Bangkok, find out what the airports have to offer before you arrive.

Best time to fly from London to Bangkok

The best time to fly from London to Bangkok is between November and February. During these months, Bangkok enjoys its dry season, with January seeing the least rainfall and more sunny days. Average temperatures are very welcoming, ranging from a comfortable 21°C to a warm 32°C, ideal for exploring the city and enjoying its outdoor attractions. By travelling in this period, you'll largely avoid the city's wet season and the high humidity that comes with it, making for a more pleasant stay.

Reasons to visit Bangkok

When planning your trip to Bangkok, check out these activities and attractions Bangkok has to offer. Immerse yourself in the country's rich history at the Grand Palace, the official residence of the Kings of Thailand. Explore Wat Pho, home to the famous Temple of the Reclining Buddha, and witness the impressive statue in its full glory. Don’t miss Wat Arun, known as the Temple of Dawn, which offers striking views of the Chao Phraya River. Time your visit to coincide with the Songkran Festival, the traditional Thai New Year, celebrated with joyous water fights and cultural ceremonies across the city.

Add hotel bookings and car hire to your London to Bangkok flight

Planning your trip to Bangkok is easy and convenient with Skyscanner. Choose from trusted car hire options like Thai Rent a Car, Keddy By Europcar, or Drive Car Rental to explore the city at your own pace. For your stay, consider the serene Banyan Tree Bangkok, the luxurious Shangri-La Bangkok, or Chatrium Hotel Riverside. Each hotel offers unique comforts suited to diverse preferences, all bookable in one place for your travel needs.


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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.