Please be aware that Osaka has multiple airports and that these results are only for Kansai International Airport.
The best month to arrive at Osaka is August and the most expensive month to fly is February. (Average prices, based on 827 datapoints.)
The best day to arrive at Osaka is Saturday and it would be best to avoid Friday, as prices are on average 154.08% higher than on Saturday. (Average prices, based on 683 datapoints.)
The cheapest airline flying to Osaka is Thai Airasia X . They are 61% cheaper than China Airlines. (Average prices, based on 878 datapoints.)
At Osaka the most flights depart around 01:00. (Hourly flights, based on 936 datapoints.)
From Osaka it is on average the cheapest to fly to Tokyo and to Seoul. (Average prices, based on 441 datapoints.)