Bus Karlsruhe to Sofia - Compare all Companies

Compare all timetables for the bus from Karlsruhe to Sofia

Here is a selection of the cheapest bus trips from the schedule from Karlsruhe to Sofia from various bus operators like FlixBus, Union Ivkoni or Karat-S for the next days.

today

tomorrow

Friday

$107

Saturday

$77

Sunday

$81

Monday

$74

Tuesday

$78

Cheapest bus trips Friday
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	FlixBus	27h 40m	4:55 AM	Karlsruhe	Central Station	9:35 AM	Sofia	Central Bus Station		Economy	$107	A Bus from FlixBus goes from Central Station, Karlsruhe (Germany) at 5/8/2026 4:55:00 AM to Central Bus Station, Sofia (Bulgaria) arriving at 5/9/2026 9:35:00 AM. 50 Economy ticket for $107 per person are available. Travel duration is 27h 40m

Did you know that if you travel from Karlsruhe to Sofia via Munich, you can save more than $28? You can find the corresponding connections below.
- BlaBlaCar Bus
  
  29h 25m
  
  0
  
  3:10 AM
  
  Karlsruhe
  Central Station
  
  7:00 AM
  
  Munich
  Central Bus Station
  
  0
  
  Economy
  
  $15
  
  A Bus from BlaBlaCar Bus goes from Central Station, Karlsruhe (Germany) at 5/10/2026 3:10:00 AM to Central Bus Station, Munich (Germany) arriving at 5/10/2026 7:00:00 AM. 50 Economy ticket for $15 per person are available. Travel duration is 3h 50m
- FlixBus
  
  21h 35m
  
  0
  
  11:00 AM
  
  Munich
  Central Bus Station
  
  9:35 AM
  
  Sofia
  Central Bus Station
  
  0
  
  Economy
  
  $64
  
  A Bus from FlixBus goes from Central Bus Station, Munich (Germany) at 5/10/2026 11:00:00 AM to Central Bus Station, Sofia (Bulgaria) arriving at 5/11/2026 9:35:00 AM. 50 Economy ticket for $64 per person are available. Travel duration is 21h 35m
Travel time is 0h 45m longer, but you will save $28

Cheapest bus trips Saturday
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	FlixBus	32h 25m	2:20 PM	Karlsruhe	Central Station	11:45 PM	Sofia	Central Bus Station		Economy	$77	A Bus from FlixBus goes from Central Station, Karlsruhe (Germany) at 5/9/2026 2:20:00 PM to Central Bus Station, Sofia (Bulgaria) arriving at 5/10/2026 11:45:00 PM. 50 Economy ticket for $77 per person are available. Travel duration is 32h 25m
	FlixBus	27h 40m	4:55 AM	Karlsruhe	Central Station	9:35 AM	Sofia	Central Bus Station		Economy	$85	A Bus from FlixBus goes from Central Station, Karlsruhe (Germany) at 5/9/2026 4:55:00 AM to Central Bus Station, Sofia (Bulgaria) arriving at 5/10/2026 9:35:00 AM. 50 Economy ticket for $85 per person are available. Travel duration is 27h 40m

Cheapest bus trips Sunday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
FlixBus	34h 45m	11:25 PM	Karlsruhe	Central Station	11:10 AM	Sofia	Central Bus Station	Economy	$81	A Bus from FlixBus goes from Central Station, Karlsruhe (Germany) at 5/10/2026 11:25:00 PM to Central Bus Station, Sofia (Bulgaria) arriving at 5/12/2026 11:10:00 AM. 50 Economy ticket for $81 per person are available. Travel duration is 34h 45m
FlixBus	27h 40m	4:55 AM	Karlsruhe	Central Station	9:35 AM	Sofia	Central Bus Station	Economy	$89	A Bus from FlixBus goes from Central Station, Karlsruhe (Germany) at 5/10/2026 4:55:00 AM to Central Bus Station, Sofia (Bulgaria) arriving at 5/11/2026 9:35:00 AM. 50 Economy ticket for $89 per person are available. Travel duration is 27h 40m
Union Ivkoni	25h 0m	4:00 PM	Karlsruhe	Central Bus Station	6:00 PM	Sofia	Bratya Miladinovi	Basic	$122	A Bus from Union Ivkoni goes from Central Bus Station, Karlsruhe (Germany) at 5/10/2026 4:00:00 PM to Bratya Miladinovi, Sofia (Bulgaria) arriving at 5/11/2026 6:00:00 PM. 50 Basic ticket for $122 per person are available. Travel duration is 25h 0m

Cheapest bus trips Monday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
FlixBus	32h 25m	2:20 PM	Karlsruhe	Central Station	11:45 PM	Sofia	Central Bus Station	Economy	$74	A Bus from FlixBus goes from Central Station, Karlsruhe (Germany) at 5/11/2026 2:20:00 PM to Central Bus Station, Sofia (Bulgaria) arriving at 5/12/2026 11:45:00 PM. 50 Economy ticket for $74 per person are available. Travel duration is 32h 25m
FlixBus	39h 10m	2:20 PM	Karlsruhe	Central Station	6:30 AM	Sofia	Central Bus Station	Economy	$74	A Bus from FlixBus goes from Central Station, Karlsruhe (Germany) at 5/11/2026 2:20:00 PM to Central Bus Station, Sofia (Bulgaria) arriving at 5/13/2026 6:30:00 AM. 50 Economy ticket for $74 per person are available. Travel duration is 39h 10m
FlixBus	27h 40m	4:55 AM	Karlsruhe	Central Station	9:35 AM	Sofia	Central Bus Station	Economy	$80	A Bus from FlixBus goes from Central Station, Karlsruhe (Germany) at 5/11/2026 4:55:00 AM to Central Bus Station, Sofia (Bulgaria) arriving at 5/12/2026 9:35:00 AM. 50 Economy ticket for $80 per person are available. Travel duration is 27h 40m
Karat-S	50h 35m	5:25 PM	Karlsruhe	Central Bus Station	9:00 PM	Sofia	Serdika	Basic	$148	A Bus from Karat-S goes from Central Bus Station, Karlsruhe (Germany) at 5/11/2026 5:25:00 PM to Serdika, Sofia (Bulgaria) arriving at 5/13/2026 9:00:00 PM. 50 Basic ticket for $148 per person are available. Travel duration is 50h 35m

Cheapest bus trips Tuesday
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	Union Ivkoni	25h 0m	8:00 PM	Karlsruhe	Central Bus Station	10:00 PM	Sofia	Bratya Miladinovi		Basic	$78	A Bus from Union Ivkoni goes from Central Bus Station, Karlsruhe (Germany) at 5/12/2026 8:00:00 PM to Bratya Miladinovi, Sofia (Bulgaria) arriving at 5/13/2026 10:00:00 PM. 50 Basic ticket for $78 per person are available. Travel duration is 25h 0m
	FlixBus	27h 40m	4:55 AM	Karlsruhe	Central Station	9:35 AM	Sofia	Central Bus Station		Economy	$91	A Bus from FlixBus goes from Central Station, Karlsruhe (Germany) at 5/12/2026 4:55:00 AM to Central Bus Station, Sofia (Bulgaria) arriving at 5/13/2026 9:35:00 AM. 50 Economy ticket for $91 per person are available. Travel duration is 27h 40m

Best Price Offer: The price for the cheapest bus from Karlsruhe to Sofia is $74 on 5/11/2026. Flexible travelers save on ticket prices.

Frequency of bus connections between Karlsruhe and Sofia

See here how frequent the connections between Karlsruhe and Sofia are, during different times and days of the week.

Monday is the busiest day, with more than 4 daily buses from Karlsruhe to Sofia. Friday has instead the fewest connections, with only 1 daily coaches between Karlsruhe and Sofia.

The busiest time of the day is the Afternoon, with 5 buses from Karlsruhe to Sofia, while Evening sees the fewest connections between Karlsruhe and Sofia, with 2 offers.

Facts about the bus from Karlsruhe to Sofia

Compare all providers like FlixBus, Union Ivkoni and Karat-S that travel 2 times every day by bus from Karlsruhe to Sofia in one click! Book your bus ticket from Karlsruhe to Sofia starting from $74!

Cheapest Bus	$74
Fastest Bus	26h 0m
Earliest Bus	4:55 AM
Latest Bus	8:00 PM
Daily Bus Routes	2 Ø
Distance	838.0 miles
Bus Companies	FlixBus, Union Ivkoni and Karat-S

Cheapest bus connections from Karlsruhe to Sofia

Every day, 2 buses from 3 bus companies leave Karlsruhe for Sofia: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 05/06/2026 and for the following days.

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday 05/03

Monday 05/04

Tuesday 05/05

Wednesday 05/06

Thursday 05/07

Friday 05/08

$107

Saturday 05/09

$77

Sunday 05/10

$122

Monday 05/11

$74

Tuesday 05/12

$78

Wednesday 05/13

$148

Thursday 05/14

$86

Friday 05/15

$122

Saturday 05/16

$140

Sunday 05/17

$131

Monday 05/18

$148

Tuesday 05/19

Wednesday 05/20

$86

Thursday 05/21

Friday 05/22

$101

Saturday 05/23

$140

Sunday 05/24

$131

Monday 05/25

$148

Tuesday 05/26

$98

Wednesday 05/27

$140

Thursday 05/28

$93

Friday 05/29

$114

Saturday 05/30

The cheapest time to travel from Karlsruhe to Sofia

See here on which day and which time of the day you can find the cheapest bus ticket from Karlsruhe to Sofia, for the next 30 days.

With a price starting from $74, Monday is the cheapest day for a bus from Karlsruhe to Sofia. Friday instead is the most expensive day with prices starting from $101.

Afternoon is the cheapest day time for bus tickets from Karlsruhe to Sofia, with $74. Evening is the most expensive time of the day with prices starting from $78.

How to save money travelling from Karlsruhe to Sofia

Travel can be expensive, but it doesn't need to be! Do you want to avoid paying a terrible price for your trip? Then follow these quick steps to save money:

Book the ticket from Karlsruhe to Sofia in advance! The earlier you book, the cheaper usually the price is. Also, you will be sure to have a place on the bus from Karlsruhe to Sofia, compared instead if you buy it at the last moment, or directly at the station.

If you can, avoid travelling at peak times. Instead of weekend, try travelling during the week. Travelling in the evening or at night it’s also cheaper, and later buses from Karlsruhe to Sofia are also emptier.

All bus stations and stops in Karlsruhe and Sofia

In the map below, you can see where to find all bus stations in Karlsruhe and Sofia.

Central Bus Station

Durlach Auer Str./Dr.Willmar Schwabe Bus Stop

Bannwaldallee Station

Kühler Krug Train Station

Sudetenstraße Bus Stop

Central Bus Station

Knyagina Maria Luisa Boulevard 100

Bratya Miladinovi

Bus and Coach Station Zapad Bus Stop

Serdika

Knyaginya Maria Luiza 102

Aleko Hut Hotel

Service and Comfort on the bus from Karlsruhe to Sofia

Want to know which seat classes are available on the buses from Karlsruhe to Sofia? Or which bus companies serve the route Karlsruhe to Sofia? Below you will find answers to your questions.

FAQs about the Karlsruhe to Sofia bus

How much does a Karlsruhe Sofia bus trip cost?

This depends on, among other things, the day and time of travel. The cheapest trip is available from $74 and takes 33h 25m to reach Sofia. Compare offers to save money!

How much could I save by comparing buses from Karlsruhe to Sofia?

This route is offered by 3 companies with a range of ticket prices between $74 and $148. Thus, we recommend booking your ticket as early as possible to make sure you get the cheapest bus ticket to Sofia.

On average, how many connections are available from Karlsruhe to Sofia each day?

Every day, the Karlsruhe to Sofia bus route is served by approximately 2 connections. With our search, you can compare bus times to find the perfect trip.

How long does a bus journey from Karlsruhe to Sofia take?

The fastest bus from Karlsruhe to Sofia is offered by Union Ivkoni and takes 26h 0m. Bus tickets for this connection cost $122. In this context, bear in mind that the journey can take longer due to traffic.

What time is the first bus from Karlsruhe to Sofia?

The earliest bus arriving in Sofia from Karlsruhe starts at 4:55 AM. However, information regarding departure times may differ on weekends and holidays. Simply use our search to find exact times for your planned travel date.

What time is the last bus from Karlsruhe to Sofia?

The latest bus trip departing from Karlsruhe for Sofia starts at 8:00 PM. Please note that departure times may differ on weekends and holidays. So just use our search to find the exact times for your planned travel date.

Which bus companies operate the Karlsruhe Sofia route?

When traveling by bus from Karlsruhe to Sofia, passengers can travel with FlixBus, Union Ivkoni and Karat-S. With our search, you can compare all available bus tickets to book the one that works for you.

Is there a direct bus between Karlsruhe and Sofia?

You can check all the direct connections between Karlsruhe and Sofia by using our search and looking at the Changes section in our filters. These are some of the companies which offer a direct bus: FlixBus, Union Ivkoni and Karat-S.

What can I take with me on the Karlsruhe to Sofia bus route?

Depending on which provider you travel with, what you're allowed to bring with you can vary. Generally, you can take a suitcase and hand luggage with you on the Karlsruhe Sofia bus route free of charge. Simply use our search to find a bus that is best suited to your needs for your planned travel date.

What equipment is available for the Karlsruhe Sofia bus route?

The equipment on board differs depending on the provider. However, many long-distance buses have WiFi so you can tell your friends your exact location during the journey. To make traveling even more pleasant, air conditioning systems provide ventilation. It is best to use our search to get precise information about the equipment of the bus from Karlsruhe to Sofia on your planned travel date.

How does CheckMyBus find the best bus deals from Karlsruhe to Sofia?

CheckMyBus collaborates directly with companies around the world to provide you with the best options when searching for a trip. We retrieve their first-hand data to show you real-time prices, schedules, and seat availability for 2 daily trips between Karlsruhe and Sofia. With the most up-to-date information from verified sources, you can fairly compare all available options and choose the trip that suits you best.

How does CheckMyBus technology work for trips from Karlsruhe to Sofia?

Prices and availability for 2 trips between Karlsruhe and Sofia change constantly. To provide you with the most up-to-date information, we connect directly with bus operators, Online Travel Agencies (OTAs), and Global Distribution Systems (GDS) via real-time interfaces (APIs). The data collected from these sources undergoes strict quality checks, is processed within our infrastructure, and is then presented to you on our search results pages. Visit our About Us page to learn more.

Available seat classes which are offered on the bus route Karlsruhe to Sofia

Basic

Name referring to the typical seat you will find with companies that don’t distinguish between different classes.

Economy

The cheapest option available for your ticket, it usually comes with reclinable seats and AC.

More bus routes to Karlsruhe and to Sofia

Here’s an overview of the most popular bus routes to Karlsruhe and to Sofia. Simply click on the connection of your choice, and you will find all the details about your bus route!