Allegro is a high-speed train service between Helsinki, Finland, and St. Petersburg, Russia. The service started on 12 December 2010. The aim is to reduce travel time between Helsinki and Saint Petersburg: before Allegro, the journey time was 5½ hours; currently it is 3 hours and 27 minutes and there are plans to bring it down to 3 hours. The name Allegro is a musical term for a quick tempo, thereby suggesting "high speed".
