Next bus departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Bus | Ulm | Serdika | Cheapest | ||||
 | Bus | International Bus Stop - 51 | Serdika | Fastest |
Last refresh of the prices: Yesterday at 7:15 PM CET.
Get from Ulm to Sofia
The journey takes about 23 hours 25 minutes and with fares starting at just $75, it presents an excellent value for a comfortable ride.
Where are the popular stops in Ulm and Sofia?
Stops in Ulm
- AEberhard-Finckh-Straße 34, 89075 Ulm, Germany
- BFriedrich-Ebert-Straße 12, 89073 Ulm, Germany
- C
Bushaltestelle Ulm Einsteinstraße
Einsteinstraße 93, 89077 Ulm, Germany - D
Ulm, Böfingen, Eberhard-Finckhstr. 34
Eythstraße 24, 89075 Ulm, Germany
Stops in Sofia
- Abulevard "Knyaginya Maria Luiza" 108, 1202 Sofia, Bulgaria
- C
Central Bus Station - Sofia
bulevard "Knyaginya Maria Luiza" 100, 1202 Tsentralna, Sofia, Bulgaria - Dbulevard "Knyaginya Maria Luiza" 100, 1202 Tsentralna, Sofia, Bulgaria
- E
Knyaginya Maria Luiza
bulevard "Knyaginya Maria Luiza" 65, 1202 Sofia Center, Sofia, Bulgaria - F
Lukoil
E80 9086, 1331 Sofia, Bulgaria
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Frequently asked questions about traveling from Ulm to Sofia by bus
Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.
How much is the bus ticket from Ulm to Sofia?
The cheapest bus tickets from Ulm to Sofia start from $75. The average price for this route is around $117. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus ride from Ulm to Sofia?
The average bus trip duration from Ulm to Sofia is 23h 25m, covering a distance of 753 miles (1214 km). The quickest bus can get you there in 23h and is operated by Union Ivkoni.
Which bus companies service the Ulm to Sofia route?
Several major bus companies operate on this route with 1 buses available per day, including services from FlixBus, Infobus, Karat-S, Union Ivkoni.
What is the earliest and latest departure time for the bus from Ulm to Sofia?
The earliest bus departs from Ulm to Sofia at 6:35am. And the latest bus departs at 8:35pm.
What are the CO₂ emissions for the bus trip from Ulm to Sofia?
A bus trip from Ulm to Sofia generates an estimated 30 kg of CO₂, making it a highly eco-friendly travel option and recommended mode of travel by Busbud.
What is the best bus company from Ulm to Sofia?
According to Busbud customers, the highest-rated bus company on this route is Karat-S, with an average rating of 4.0 out of 5 stars based on 291 reviews.
Which bus company has the best Wi-Fi from Ulm to Sofia?
Based on reviews on Busbud, the bus company Infobus has the best Wi-Fi rating with a score of 3.8.
Which bus company has the most timely service from Ulm to Sofia?
According to Busbud traveler reviews, the most timely bus company on this route is Karat-S, with a punctuality rating of 4.7 out of 5 stars.
Which bus company has the cleanest buses from Ulm to Sofia?
According to Busbud traveler reviews, the bus company with the cleanest buses on this route is Infobus, with a cleanliness rating of 4.8 out of 5 stars.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Ulm to Sofia was searched and found on Mar 6, 2026 with a price of $79To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Ulm to Sofia, as early as possible.
You can expect to pay from $79 to $150 for a bus ticket from Ulm to Sofia based on the last 2 days. You can expect to find the cheapest price for the trip at $79 which is on 2026-03-06.
Usually Union Ivkoni will charge you higher prices for tickets closer to the departure date. To find the best prices, you should be flexible on your date of travel.
