Cheap flights from Bangkok Suvarnabhumi Airport to Japan from £128

The cheapest month to fly to Japan from Bangkok Suvarnabhumi Airport is in June. Flight prices, which tend to average around £234, are often lower during this time because this is during the off-season. If you don’t want to visit Japan in June, then you should wait until September to fly from Bangkok Suvarnabhumi Airport, when ticket prices are also cheap, with an average price of £237.

The cheapest day to depart from Bangkok Suvarnabhumi Airport to Japan is on a Sunday when prices can be found for as low as £357. On the other hand, Friday is the most expensive day to depart from Bangkok Suvarnabhumi Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £876.

Our data shows that the cheapest Bangkok Suvarnabhumi Airport to Japan flights are usually those with departure times in the evening. Our users have found flights to Japan in the evening for as low as £334. At midday is when there is more demand to fly to Japan, so prices are often more expensive at around £504 per ticket.

Fly from Bangkok Suvarnabhumi to Osaka Kansai Intl for the best Bangkok Suvarnabhumi - Japan flight prices

You are more likely to see cheaper flights to Japan from Bangkok Suvarnabhumi Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Japan for around £289 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Japan from Bangkok Suvarnabhumi Airport for as low as £266 on momondo.

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

Vietnam Airlines, China Eastern, and Japan Airlines are the most popular carriers operating from Bangkok Suvarnabhumi to Japan

Thai AirAsia X, Thai AirAsia and Vietnam Airlines are the top three most popular airlines that fly to Japan from Bangkok Suvarnabhumi Airport according to our data. Thai AirAsia X is the first choice among our users, with 75% of people opting to fly with this airline when travelling to Japan. Keep in mind that there are 3 different airlines that fly to Japan on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% of flights between Bangkok and Japan have experienced a delay on any given week. The average delay length over the past 12 months has been 108 minutes.

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

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, ANA have had the fewest delays on this route over the last 12 months, with about 5% of their flights experiencing any sort of delay.

As of March 2026, 47 flights take off from Bangkok Suvarnabhumi Airport and land in Japan each day. The most common flight departure time for this route is 08:00, with 39% of daily flights taking off at midday.

335 flights are operational weekly from Bangkok Suvarnabhumi Airport to Japan as of March 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.