Cheap flights from Bangkok Suvarnabhumi Airport to London from $349

The month of November is, on average, the cheapest month to fly to London Heathrow Airport from Bangkok Suvarnabhumi Airport, with most prices found around $913. If you’re not able to fly to London Heathrow Airport in November, then February is your next best option. Flight prices from Bangkok Suvarnabhumi Airport to London Heathrow Airport during February average around $969.

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $1,136. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $1,367.

According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from Bangkok Suvarnabhumi Airport to London Heathrow Airport at noon for as low as $1,149. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $1,359.

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

You are more likely to see cheaper flights to London Heathrow Airport from Bangkok Suvarnabhumi Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $1,040 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Bangkok Suvarnabhumi Airport for as low as $922 on momondo.

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

You could potentially save up to 3% on your flight if you consider stops on a Bangkok Suvarnabhumi Airport to London Heathrow Airport flight.

As of July 2026, prices for Bangkok Suvarnabhumi Airport to London Heathrow Airport flights are approximately 25% cheaper when compared to flights at the same time last year.

IndiGo, Oman Air, and Hainan Airlines are the most popular carriers operating from Bangkok Suvarnabhumi to London Heathrow

EVA Air, Thai Airways and Emirates are the top three most popular airlines that fly to London Heathrow Airport from Bangkok Suvarnabhumi Airport according to our data. EVA Air is the first choice among our users, with 54% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 4 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 11% 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 97 minutes.

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

Friday 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, Thai Airways have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

Doha (DOH) was the most common stop: 42% of momondo users choosing 1-stop flights on this route connected there.

Flights via Guangzhou (CAN) offer the lowest average round-trip price of $829.

Flights connecting via Vienna (VIE) have the shortest average one-way travel time: 14h 40m.

Vienna (VIE) has the shortest average layover time for this route: 0h 45m.

As of July 2026, there are 7 flights per day flying from Bangkok Suvarnabhumi Airport to London Heathrow Airport. The most common time of day flights depart is 12:00PM, with 57% of flights taking off in the afternoon.

49 flights are operational weekly from Bangkok Suvarnabhumi Airport to London Heathrow Airport as of July 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.