Cheap flights from Bangkok to London Heathrow Airport
BKK — LHR
27 Oct — 3 Nov1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Bangkok to London Heathrow are usually found in February or November, booked 72 days in advance, depart on a Wednesday or Sunday and return on a Wednesday
Find flight deals from Bangkok to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 September 2026.
Popular in
August
Cheapest in
February
Average price
฿35,876
Highest demand for flights based on searches. 6% potential increase in price (฿77,473 potential increase over avg. return price).
Best time to book a flight from Bangkok to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Bangkok with our price prediction graph.
TH1-LHR
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Bangkok to London Heathrow Airport
Prices
Delays
How far ahead should I book a flight from Bangkok to London Heathrow Airport?
The price you pay for your flight from Bangkok to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Bangkok to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of ฿29,669). Flying from Bangkok to London Heathrow Airport in August is currently the most expensive (average of ฿38,312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BKK to LHR?
Find hourly flight availability from Bangkok to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 September 2026.
When flying from Bangkok to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Bangkok to London delayed?
About 10% of weekly flights between Bangkok and London have experienced delays in the past year, with the average delay time being 98 minutes.
What is the most punctual flight time for Bangkok to London flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Bangkok to London flights?
Over the past year, Thai Airways have had the lowest number of delays on this route, with just 9% of flights being delayed.
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 27 September 2026.
Get a feel of what it's like to fly with EVA Air,Emirates, andโอมานแอร์ from Bangkok to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Related info for your journey
Find useful and relevant information for your journey from Bangkok to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What are the cheapest airlines flying from Bangkok to London Heathrow Airport round-trip?
Cheapflights users have booked flights from Bangkok to London Heathrow Airport return from ฿9,812. Other airlines that can offer you cheap pricing are Finnair, from ฿18,963, and โอมานแอร์, from ฿21,896. เอทิฮัดแอร์เวย์ is currently priced 71% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Bangkok to London Heathrow Airport one-way?
The cheapet airlines for a one-way flight from Bangkok to London Heathrow Airport are สแกนดอเนเวียนแอร์ไลน์ (฿6,481), เอทิฮัดแอร์เวย์ (฿6,892), and ไห่หนานแอร์ไลน์ (฿7,518).
What are the most reliable airlines from Bangkok to London Heathrow Airport?
Before booking your flight to London Heathrow Airport from Bangkok, have a look at the most reliable airlines to get you to your destination on time: แอร์แคนาดา (90%), TAP ปอร์ตูกัล (90%), Thai Airways( 85%).
What are the cheapest flights from Bangkok to London Heathrow Airport?
On average you can expect to pay ฿31,720 for a flight from Bangkok to London Heathrow Airport. The cheapest flight overall is ฿16,762 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at ฿20,524.
Can I find deals for business class flights from Bangkok to Heathrow?
Yes. Cheapflights offers flight deals from Bangkok to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Bangkok to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of ฿29,669). Flying from Bangkok to London Heathrow Airport in August is currently the most expensive (average of ฿38,312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 27 September 2026.
Discover the top 8 airlines that operate flights from Bangkok to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 27 September 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Bangkok to Heathrow?
When you search for this flight from Bangkok to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Bangkok to Heathrow?
Cheapflights helps you find that perfect flight to Heathrow from Bangkok by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Bangkok to Heathrow with no change fees?
Certainly. Search results for flights to Heathrow from Bangkok shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Bangkok to Heathrow become cheaper?
Yes, Cheapflights offers price alerts on Bangkok to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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