"Don't you know the 'Wings of Wind' jutsu?" Orochimaru asked.
Jiraiya and Tsunade exchanged glances.
They were capable of learning it, but neither had done so, feeling it unnecessary; besides, mastering the 'Wings of Wind' required not only substantial chakra reserves but also an exceptionally high level of chakra control and the ability to change its nature.
Jiraiya felt that controlling the Rasengan was already sufficient for him; there was no need to add flying ninjutsu to his arsenal, especially since his chakra reserves weren't that abundant.
Although Tsunade had enough chakra to support prolonged flight, after returning to Konoha, between attending occasional conferences and working at the village hospital, she had no time to learn such skills.
Speaking of conferences—
Tsunade could swear to the heavens.
Since Haruno Sakura became Hokage, meetings happened almost weekly, with smaller ones every seven days and larger ones every half month, quite frequently.