Many thanks to @Keanuital for tweeting the link!
Employment site, Moi Posao posted a job for an accountant for Jung Sky. One of the perks that they mention was some of the celebs that fly with them. They posted a photo of Keanu in front of one of their planes along with the crew. The job posting expired on February 23, 2018.
Many thanks to Dalibor Škunca for sharing the same photo o FB on January 18, 2018. His location was listed as being near near Zagreb, Croatia.
Note: Jung Sky is located in Croatia and specializes in business, tourist and private flights. From their website, they can land on shorter runways allowing them to use many small airports. They also fly over most of Europe and North Africa.
We know that Keanu was spotted on January 13 at LAX, most likely heading to Valencia for the track day that was on January 15, 2018. There was a photo of him with the Ryanair crew at the Valencia airport on January 16, 2018. We know that he went from Valencia to Bologna to meet up with his sister and then escorted her to Capri. A car ride from Bologna to Capri is approximately 8 hr. Based on the date posted with the FB photo, I think it is likely that he arranged for a private flight with Jung Sky from Bologna to Capri.
