A highly ambitious transportation proposal aims to connect Athens with approximately 40 other destinations in Europe through a high-speed “mega-metro” rail network by 2040. Dubbed “Starline,” the blueprint of this plan hopes to replace Europe’s fragmented national railways with a unified 22,000-kilometer (14,000-mile) system, significantly reducing travel times for Greek and European passengers overall, offering a green alternative to short-haul flights.
Developed by the Copenhagen-based think tank 21st Europe, the Starline project proposes five major railway corridors spanning 22 nations across Europe. The proposed routes include Line A from Naples to Helsinki, Line B from Lisbon to Kyiv via Madrid, Line C connecting Madrid to Istanbul, Line D from Dublin to Kyiv, and Line E linking Milan to Oslo. Operating like a city metro on a continental scale and obviously above ground, the network will link European cities under a single transit identity, with trains reaching speeds between 300 and 400 kilometers per hour.
Where do Athens and Greece come into the equation of this Europe-wide system?
For Greece, the infrastructure upgrade would drastically alter regional connectivity within the country and across southeastern Europe. Τhe European Commission recently announced targets to cut Sofia-to-Athens travel from 13 hours and 40 minutes to six hours, and Berlin-to-Copenhagen from seven hours to four.
The proposal complements these targets across the continent, where similar reductions will happen. A trip from Berlin to Copenhagen, from example, will drop from seven hours to four, while historically overnight routes like Kyiv to Berlin will become predictable, direct daytime connections.
Transportation remains one of Europe’s largest climate challenges, generating roughly a quarter of all greenhouse gas emissions. While aviation accounts for a smaller percentage globally, short-haul flights remain the default for millions of European travelers. High-speed rail produces up to 90 percent less carbon dioxide per journey. 21st Europe states that a large-scale shift to rail represents the best path toward meeting the European Union’s 2050 net-zero emissions targets while maintaining fast mobility.
The proposal moves away from traditional railway conventions as the dark blue trains will abandon standard first- and second-class divisions, replacing them with purpose-built spaces such as quiet workspaces, family-oriented sections, ergonomic seating, and communal coffee areas. This layout aims to democratize long-distance travel and prioritize passenger comfort.
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