Sofia Metro is the first and only metro system in Bulgaria. As of August 2026 the network has 4 lines (M1, M2, M3, M4), 47 stations, and 52 km of route. The metro is constructed and operated by Metropolitan EAD (Metropoliten JSC). The first section opened on 28 January 1998.
Metro Line M1
Line M1 (red) connects the northwestern and southeastern parts of Sofia — from Slivnitsa and Lyulin through the city centre to Mladost, Sofia Airport, and Sofia Business Park. It shares 13 stations with Line M4.
Metro Line M2
Line M2 (blue) runs from Obelya in the northwest to Vitosha in the south, passing through Serdika, NDK, and Central Railway Station. It opened on 31 August 2012.
Metro Line M3
Line M3 (green) currently runs from Gorna Banya in the southwest to Gen. Vladimir Vazov in the northeast. The western section to Gorna Banya (via Ovcha Kupel) opened in April 2021. On 14 August 2026 a new 3 km northeastern extension entered service with three stations — Georgi Asparuhov Stadium, Bessarabia, and Gen. Vladimir Vazov — reaching the Levski residential district.
Metro Line M4
Line M4 (yellow) connects Obelya with Sofia Airport (Terminal 2). It is the main airport link for travellers and shares most of its central section with Line M1.
Ongoing and planned extensions
Pancho Vladigerov station is under construction between Slivnitsa and Obelya. When it opens (expected in late 2026), Lines M2 and M4 will terminate there and the station will serve as an intermodal hub with national rail and bus connections.
A 6 km eastern extension of Line M3 is being built underground through Geo Milev and Slatina toward Arena Sofia, Sofia Tech Park, and Tsarigradsko shose. Six new stations are planned — Sitnyakovo, Geo Milev, Slatina, Shipchenski Prohod, Arena Sofia, and Trakiya — with completion targeted for 2027.
An upcoming 2 km extension in Lyulin on Line M1 will add Tsaritsa Yoanna and Dobrinova skala stations under Tsaritsa Yoanna Boulevard to the Sofia ring road. Contracts were signed in June 2026; construction is expected to start in late 2026 or early 2027.
This page is maintained by metrosofia.com — an independent information site, not the official Metropolitan EAD website.