The Sofia Metro is the rapid transit network servicing the Bulgarian capital city Sofia. It is the only metro in Bulgaria. It began operation on 28 January 1998. As of 2024, the Sofia Metro consists of four interconnected lines, serving 47 stations, with a total route length of 52.0 kilometres (32.3 mi) and also being among the top 20 of the most extensive European metro systems, ranking 14th as of 2023. The Metro links the densely populated districts of Lyulin – Mladost and Nadezhda – Lozenets, and serves the Sofia Airport.

Sofia Airport is the main international airport of Bulgaria, located 10 km (6.2 mi) east of the centre of the capital Sofia. In 2019 the airport surpassed 7 million passengers for the first time. The airport serves as the home base for BH Air, Bulgaria Air, European Air Charter and GullivAir, and as a base for both Ryanair and Wizz Air. The airport also houses the Bulgarian Air Force's Vrazhdebna Air Base.