Cheap flights from Bangkok to London Heathrow Airport
BKK — LHR
1 May — 8 May1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Bangkok to London Heathrow are usually found in November or February, booked 61 days in advance, depart on a Monday or Wednesday and return on a Tuesday
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 1 April 2026.
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
Airlines
Delays
How far ahead should I book a flight from Bangkok to London Heathrow Airport?
Use this chart to determine the optimal time to book a return flight from Bangkok to Heathrow. Price data was last updated on 13 March 2026.
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 61 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 £289). Flying from Bangkok to London Heathrow Airport in September is currently the most expensive (average of £578). 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 1 April 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bangkok to London Heathrow Airport as you normally would.
How much does it cost for a return flight from Bangkok to London Heathrow Airport?
Weekly flight availability from Bangkok to London Heathrow Airport
Explore weekly flight availability from Bangkok to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 1 April 2026.
The most flights from TH1 to LHR are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).
How often are flights from Bangkok to London delayed?
About 14% of weekly flights between Bangkok and London have experienced delays in the past year, with the average delay time being 90 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?
Sunday 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, EVA Air have had the lowest number of delays on this route, with just 13% 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 1 April 2026.
Check out reviews from past customers who have flown with EVA Air,Emirates, andThai Airways from Bangkok to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
What about midnight snacks to add? Used to have that before..
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.
How long is the flight from Bangkok to London Heathrow Airport?
For as low as £735, Etihad Airways can have you in London Heathrow Airport from Bangkok in 14h 45m. The distance from Bangkok to London Heathrow Airport is about 5947 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Bangkok to London Heathrow Airport round-trip?
Our cheapest airline available from Bangkok to London Heathrow Airport is China Southern. Our recent data shows that you can find tickets from as low as £216 on this airline. Additional options worth looking into are Kuwait Airways and Oman Air, starting at £272 and £291 round-trip. These flights start at 71% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Bangkok to London Heathrow Airport one-way?
The cheapest airline one-way is Norse Atlantic UK, with whom users have recently found tickets for as low as £130. However, be on the lookout for offers from Scandinavian Airlines and Hainan Airlines, as they are both options that can get you from Bangkok to London Heathrow Airport for a low price.
What are the most reliable airlines from Bangkok to London Heathrow Airport?
No one likes to see their flight delayed. When booking a flight from Bangkok to London Heathrow Airport consider choosing Air Canada (90%), Thai Airways (78%) or EVA Air (71%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Bangkok to London Heathrow Airport?
On average you can expect to pay £1,328 for a flight from Bangkok to London Heathrow Airport. The cheapest flight overall is £404 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £513.
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 £289). Flying from Bangkok to London Heathrow Airport in September is currently the most expensive (average of £578). 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 1 April 2026.
Discover the top 10 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 858,174 searches. Data last updated 1 April 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?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Bangkok today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Bangkok to Heathrow?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Bangkok.
Can Cheapflights find flights from Bangkok to Heathrow with no change fees?
Yes, we can. To see specific flights from Bangkok to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Bangkok to Heathrow become cheaper?
Of course! You can now track prices for flights from Bangkok to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.
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