Cheap flights from Bangkok to Osaka from $149

In general, June is the cheapest month to fly from Bangkok to Osaka Kansai Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $267. If you aren’t able to travel during the month of June, then book flights to Osaka Kansai Intl Airport from Bangkok during September instead. Flights to Osaka Kansai Intl Airport in September, while not as cheap as those in June, still average around $273.

The cheapest day to depart from Bangkok to Osaka Kansai Intl Airport is on a Thursday. Travelers who choose to depart for Osaka Kansai Intl Airport on a Thursday will often find tickets for as low as $386. Flights from Bangkok to Osaka Kansai Intl Airport on a Monday will generally be more expensive and average around $590. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Bangkok to Osaka Kansai Intl Airport flights are usually those with departure times in the morning. Our users have found flights to Osaka Kansai Intl Airport in the morning for as low as $313. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $360 on average. Flights to Osaka Kansai Intl Airport from Bangkok in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Bangkok Don Mueang Intl to Osaka Kansai Intl for the best Bangkok - Osaka Kansai Intl flight prices

You are more likely to see cheaper flights to Osaka Kansai Intl Airport from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Osaka Kansai Intl Airport for around $366 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Osaka Kansai Intl Airport from Bangkok for as low as $316 on momondo.

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

Peach, Thai Vietjet Air, and China Eastern are the most popular carriers operating from Bangkok to Osaka Kansai Intl

Thai AirAsia X, Japan Airlines and Peach are the top three most popular airlines that fly to Osaka Kansai Intl Airport from Bangkok according to our data. Thai AirAsia X is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Osaka Kansai Intl Airport. Keep in mind that there are 8 different airlines that fly to Osaka Kansai Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 27% of flights between Bangkok and Osaka have experienced a delay on any given week. The average delay length over the past 12 months has been 96 minutes.

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

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday 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 20% of their flights experiencing any sort of delay.

6 flights are operational daily from Bangkok to Osaka Kansai Intl Airport as of March 2026. The most popular departure time for this route is 1:00AM, with 53% of flights per day taking off in the morning.

47 flights are operational weekly from Bangkok to Osaka Kansai Intl Airport as of March 2026. The most popular departure day for this route is Sat, with 36% of flights per week taking off on this day.