Cheap flights from Bangkok to London from $348

The cheapest month to fly to London from Bangkok is in November. Flight prices, which tend to average around $888, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Bangkok averaging around $901.

The cheapest day to depart from Bangkok to London is on a Friday. Travelers who choose to depart for London on a Friday will often find tickets for as low as $925. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $1,215. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Bangkok in the evening is the least expensive time of day to depart. momondo users have found prices as low as $970 when looking at flights departing in the evening. Flights to London are more costly at noon, with an average ticket price of $1,206. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Bangkok Suvarnabhumi to London Heathrow for the best Bangkok - London flight prices

You are more likely to see cheaper flights to London from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $1,041 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Bangkok for as low as $959 on momondo.

There are 3 cabin classes available to choose from on Bangkok to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

China Eastern, China Southern, and Air China are the most popular carriers operating from Bangkok to London

EVA Air, Thai Airways and Emirates are the top three most popular airlines that fly to London from Bangkok according to our data. EVA Air is the first choice among our users, with 52% of people opting to fly with this airline when traveling to London. Keep in mind that there are 5 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between Bangkok and London have experienced a delay on any given week. The average delay length over the past 12 months has been 107 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Sunday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

6 flights are operational daily from Bangkok to London as of August 2026. The most popular departure time for this route is 12:00PM, with 50% of flights per day taking off in the afternoon.

As of August 2026, there are 48 flights per week flying from Bangkok to London. The most common day of the week flights depart is Wed, with 17% of flights taking off on this day.