Cheap flights from Osaka Kansai Intl Airport to Bangkok from $122

If you aren’t able to travel during the month of August, then book flights to Bangkok from Osaka Kansai Intl Airport during June instead. Flights to Bangkok in June, while not as cheap as those in August, still average around $255.

On average, the least expensive day to fly to Bangkok from Osaka Kansai Intl Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $753. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Osaka Kansai Intl Airport to Bangkok on a Thursday will generally be more expensive and average around $944. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Bangkok is in the evening. momondo users have found flights departing from Osaka Kansai Intl Airport to Bangkok in the evening for as low as $342. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $985. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Bangkok from Osaka Kansai Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $336 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Osaka Kansai Intl Airport for as low as $231 on momondo.

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

Shandong Airlines, Shenzhen Airlines, and Peach are the most popular carriers operating from Osaka Kansai Intl to Bangkok

Thai AirAsia X, Peach and Cathay Pacific are the top three most popular airlines that fly to Bangkok from Osaka Kansai Intl Airport according to our data. Thai AirAsia X is the first choice among our users, with 76% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 4 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Osaka and Bangkok have experienced a delay on any given week. The average delay length over the past 12 months has been 121 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.

Friday 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, Japan Airlines have had the least number of delays on this route over the last 12 months; with about 3% of their flights experiencing any sort of delay.

15 flights are operational daily from Osaka Kansai Intl Airport to Bangkok as of March 2026. The most popular departure time for this route is 12:00AM, with 34% of flights per day taking off in the morning.

The number of flights available between Osaka Kansai Intl Airport and Bangkok is 109 per week as of March 2026. The most frequent departure day is Tue, with 15% of weekly flights leaving on this day.