Jet Plane is the debut mini album by Japanese rock band Rumania Montevideo.

Jonathan was released on their debut studio album Rumaniamania as Sayonara.

Compared to Jonathan, the Sayonara is more than half minute longer.

[4][5] The album was released in paper format for CD and a special mini booklet with lyrics and Q&A section.

All lyrics are written by Mami Miyoshi and arranged by Hirohito Furui; all music is composed by Makoto MiyoshiCredits adapted from the CD booklet of Jet Plane.