Though there are two methods of travel to cover the 82 miles (132 km) between Dubrovnik and Mostar, travel by car is the preferred option to bus travel because of the comfort and efficiency it provides.
Driving between the countries from the coast to the inland destination provides the opportunity to see multiple cities and sights along the way for more leisurely travel. Bus travel is relatively easy and provides a nice view of the Adriatic but is less comfortable.
By Rental Car or Private Transfer
Duration: 2-2.5 hours
There are a number of major car rental companies in Dubrovnik. Automatic cars are more expensive to rent, though it is possible to rent manual or automatic vehicles. Gas tends to be expensive in Croatia and is bought by the liter, which is only a quarter of a gallon.
The highway route along M6 is the fastest, requiring roughly two and a half hours. The route is quite scenic as it follows the coast as well as runs through lush countryside and farmlands. Have kuna (local currency) on hand for each direction you travel to pay the toll fare. Keep in mind that the border controls can have long lines and lengthen the overall travel time.
If you prefer not to rent a car, private transfers can be booked between Dubrovnik and Mostar. Selecting a private transfer provides more comfort and more control over your schedule. You can book this as part of a broader tour itinerary, and having a local driver is great for getting additional insights at sights and stops along the way.
Duration: 3-4 hours
Buses depart Dubrovnik for Mostar at least a couple of times per day. The travel time between Dubrovnik and Mostar is optimistically four hours on the direct bus, though dense traffic during peak tourism season can lengthen travel time as well as long border queues. Be sure to sit on the left side of the bus to get the best view of the Adriatic as you wind along the coast until the bus begins to head inland.
If scheduling tours on the same day of travel, arrive with plenty of time, at least two to three hours, before the start of the tour. Companies such as Arriva and Flexibus provide a more comfortable trip with buses outfitted with wifi, charging outlets, and a bathroom. Expect at least one break during the drive and a minimal fee per suitcase.