Cross Country's Penzance - Aberdeen to end
More details link below https://www.cornish-times.co.uk/news/crosscountry-confirm-end-of-uks-longest-direct-train-route-in-upcoming-timetable-changes-761460
More details link below https://www.cornish-times.co.uk/news/crosscountry-confirm-end-of-uks-longest-direct-train-route-in-upcoming-timetable-changes-761460