In short: 4 lines (M1–M4). €0.82 single ticket (Bulgaria uses euros since January 2026). M4 goes to Sofia Airport in 18 minutes. Runs 05:30–midnight. Validate at the turnstile before boarding. Lines M2 and M4 are most useful for visitors.
The lines:
- M1: East–west across the city.
- M2: North–south through the centre. Key: NDK (National Palace of Culture), Serdika (city centre hub).
- M3: Loop through the centre — opened 2020.
- M4: Airport line. T2 → Serdika in 18 minutes. The line every arriving visitor uses.
Tickets: €0.82 per single journey. Buy at vending machines (card/cash) or ticket desks. Contactless bank card tap at turnstiles works at most stations. Note: each person must tap separately — cannot pay for two people with one card tap.
Key stations for visitors:
- Serdika: M2/M3 intersection. City centre. Near the Baths and St George Rotunda.
- NDK: Vitosha Boulevard and National Palace of Culture.
- Sofia Airport: M4, Terminal 2.
Hours: 05:30–midnight (approximately). After midnight: taxi or transfer.
FAQ
Does the metro go to the airport? Yes — M4 from T2 to Serdika in 18 minutes.
24-hour service? No. Midnight cutoff.
Contactless payment? Yes at most stations. Each passenger taps separately.
Is the Sofia metro reliable? Yes — modern, air-conditioned, punctual.
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