Cheapflights Tip: The best prices from Bangkok to London are usually found in February or November, booked 82 days in advance, depart on a Monday or Thursday and return on a Wednesday
Find flight deals from Bangkok to London
Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to London (LON). 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 23 October 2026.
Popular in
July
Cheapest in
February
Average price
฿30,297
Highest demand for flights based on searches. 6% potential increase in price (฿77,387 potential increase over avg. return price).
Have a flexible travel schedule? Discover the best time to fly to London from Bangkok with our price prediction graph.
TH1-LON
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
Prices
Delays
How far ahead should I book a flight from Bangkok to London?
Booking 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from Bangkok to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Bangkok to London?
Currently, February is the cheapest month in which you can book a flight from Bangkok to London (average of ฿28,037). Flying from Bangkok to London in August is currently the most expensive (average of ฿37,416). 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 LON?
Find hourly flight availability from Bangkok to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 October 2026.
It’s optimal to fly from Bangkok to London in the afternoon. By choosing this option you can save up to 50% on the cost of your flight, compared to a flight in the evening.
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 108 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 morning 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, บริติชแอร์เวย์ have had the lowest number of delays on this route, with just 8% of flights being delayed.
Reviews of airlines servicing London
Get insights into the airlines that provide service to London. 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 London. Reviews last updated 23 October 2026.
Read reviews from past customers who have flown with EVA Air,โอมานแอร์, andThai Airways
from Bangkok to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.