Bulgarian Railways launches a summer night train service between Sofia and Varna on April 30, reinstating overnight travel along the Sub-Balkan railway line (the route running beneath the Balkan mountain range via Karlovo, Kazanlak, and Sliven) after years without a direct sleeper connection. The service runs during summer months only, though no end date has been announced.
Fast train No. 3637 departs Sofia Central Station at 23:30 and arrives in Varna at 07:25 the following morning, a journey of seven hours 55 minutes. The service includes both seating and sleeping cars, with a direct sleeper carriage continuing to Dobrich, arriving at 08:41.
How the service works
The Dobrich sleeper car detaches at Povelyanovo station and joins fast train No. 2637 for the final leg from Varna to Dobrich. This is where passengers can go wrong: anyone booking through to Dobrich should confirm their carriage number when boarding at Sofia to avoid ending up in Varna instead. The process is operationally clever but not entirely intuitive if you've never navigated Bulgarian rail logistics before.
In the return direction, fast train No. 3636 begins operations on May 1, departing Varna at 21:40 and reaching Sofia Central Station at 06:07. The Dobrich sleeper leaves earlier at 20:35, integrated into fast train No. 2636 from Dobrich to Varna before continuing to Sofia.
The route calls at Karlovo, Kazanlak, and Sliven, providing connections for passengers along the Sub-Balkan corridor.
Tickets and discounts
Passengers can purchase tickets at station counters, railway ticket offices, or through the online booking system. Round-trip purchases qualify for discounts between 10% and 20%, though these depend on available commercial offers at the time of booking and may vary.
Schedules and travel information are accessible via the official railway website, station information desks, and a national telephone inquiry line. Passengers should verify the latest timetable information before travel, particularly as seasonal services can shift without much notice and the Dobrich connection adds operational complexity.
British context
For British residents planning summer travel to the Black Sea coast, the overnight service offers a practical alternative to early morning departures or road travel. The journey time is comparable to the UK's Caledonian Sleeper service between London and Scotland, though Bulgarian sleeper fares are significantly lower and onboard facilities are likely more basic than UK equivalents.
Bulgaria's railway infrastructure operates on a smaller scale than the UK network, but the Sub-Balkan line provides a direct route avoiding Sofia's traffic and the congested coastal motorway during peak summer months. The Dobrich extension serves a town of roughly 80,000 people, approximately 30 kilometres inland from popular resorts including Albena and Balchik.
Service notes and cautions
Bulgarian Railways has not published ridership or capacity figures for the new service. Overcrowding during July and August remains a possibility, particularly on Friday and Saturday nights. Early booking is advisable for peak summer weekends.
Onboard comfort and facilities are currently unconfirmed, as no independent passenger reviews are yet available and the operator has not detailed sleeper car standards. This is the sort of detail that matters when you're settling in for an eight-hour journey.
The service runs during the summer season only. Bulgarian Railways has not announced an end date, but similar seasonal trains typically cease operations in late September or early October. Check the latest schedule before booking, particularly if travelling close to what might be the tail end of the season.
Passengers unfamiliar with the Dobrich sleeper detachment process should double-check carriage assignments and arrival stations when booking. It's the sort of operational detail that works perfectly on paper but can catch out travellers in a hurry at 23:30 on a Friday night.