BGN 1.60 gets you into town on Bus 184
Bus 184 is Sofia’s other airport bus into the centre, running from both T1 and T2 for the same BGN 1.60–2.00 single ticket as any city bus. It shares the airport–centre role with Bus 84, but runs through Druzhba and Geo Milev, which matters if you’re staying in those eastern‑central districts.
Journey time sits around 30–55 minutes between Sofia Airport and the central area, depending on traffic along Druzhba and Geo Milev. Compared with 84’s more direct path, 184 can feel slower at rush hour, but it drops you closer to apartments and smaller hotels in those neighbourhoods.
Buses run roughly every 15–20 minutes from about 5:00 to 23:30, with the same daytime frequency from both terminals. First departures around 5:00 help with early trains or buses out of the city, while the last runs near 23:30 still work for later evening arrivals that miss the metro.
Stops at both T1 and T2 mean you do not need the inter‑terminal shuttle; just follow airport signs for city buses 84/184. The airport stop signage lists both routes together, which is why forum regulars say to board whichever comes first if you’re headed to the centre.
Tickets cost BGN 1.60 from the driver in cash or via city transport ticket machines where available, with the same validation rules as any Sofia bus. The pricing matches Bus 84 exactly, so there’s no financial reason to wait for a specific route if you only care about getting near the centre.
Locals mention that 184 is “basically the same as 84” for airport–centre trips, but with slightly different intermediate stops through Druzhba and Geo Milev. That makes 184 handy if your hotel pin on the map sits east of the main core, instead of right on Vitosha Boulevard or Serdika.
Watch out for the route number on the front of the bus: some visitors report confusion after expecting 84 and seeing 184 pull in at the signed 84/184 stop. Both go into town and use the same ticket and validators, but the number matters if you’re targeting a specific stop in Druzhba or Geo Milev.
One practical tip: screenshot the SofiaTraffic 184 route map before landing, then match your accommodation to a stop name so you know whether to jump on 184 immediately or wait a few extra minutes for 84 instead.