Zagreb is inland: not one of Croatia’s 68 registered coastal routes touches it. Split is where the ferry network starts, with more registered routes than any other port. Making that move is the hinge of a Croatian trip, and the calendar decides how much of Split is running.
Two cities on different calendars
The distance is not the interesting part of this journey. The interesting part is that you are moving from the one Croatian city that works at full strength in February to one that does not. The state statistics office publishes monthly airport traffic, and the November figures show the gap more plainly than any description of it.
| Airport | Passengers, November 2025 | What that is |
|---|---|---|
| Zagreb | 337,851 | The only genuine year-round hub — and it is inland |
| Split | 62,250 | Central Dalmatia and the island ferries, intensely seasonal |
| Dubrovnik | 49,275 | The far south, at the end of the coastal network |
Set the same airport against itself and the point sharpens. Split handled roughly 578,000 passengers in June 2025 and 62,250 in November. Zagreb does not swing like that, because Zagreb is not a beach. Whatever you are travelling for at the Split end, the month you choose changes what is open, what sails and how much of it there is.
578,000
passengers through Split airport in June 2025, against 62,250 in November 2025
None of which is an argument against going. It is an argument for knowing which Split you are arriving in, because the city has two distinct functions and only one of them runs all year.
Arriving in Split expecting the island network to be running
Split is the busiest gateway in the coastal register: twenty-three of the 68 registered routes touch it, more than any other port in the country. But thirteen of those twenty-three are commercial lines, which means no operator is contracted to run them and nothing in the register says they will exist in March.
The ten state lines carry a public service obligation and sail through the winter. That is the number to plan a shoulder-season trip around. An itinerary built in January on a summer sailing list is the single most expensive mistake available on this coast, because the accommodation is usually booked first.
What Split is actually for
Zagreb does not appear in the coastal register at all — none of the 68 routes touch it — which is the whole explanation of why this journey matters. The capital is a city you visit; Split is the door to everything offshore. Five of its registered routes carry a vehicle and the rest do not, so the decision you make in Zagreb about hiring a car has already limited what you can do when you arrive.
registered routes touch Split
The largest gateway in the country, at full stretch
Brac, Solta, Hvar, Vis, Korcula and Lastovo are all served from the same terminal, by state car ferries and by commercial catamarans running to summer demand. This is the menu every itinerary is written from.
Two things follow from that toggle. If you are travelling between roughly late May and September, treat Split as a hub and let the day-trip page do the sequencing. If you are travelling outside it, read the network overview first and build the trip on lines somebody is contracted to run. And if the plan involves a hire car, what a car does to the ferry network is the page to read before you book it, not after.
What do you need to work out next?
The move is the easy part. These are the decisions it forces.
Where to stay
Where should I base myself in Split?
Split is the largest gateway in the 68-route coastal register.
Getting around
Should the car continue past Split?
Twenty-four of 68 coastal routes take a vehicle; the other 44 do not.
When to go
Is the coast worth it out of season?
Split airport carried 62,250 passengers in November 2025.
Planning
Should I hire a car at all?
Only twenty-four of 68 registered routes will take one.
Passenger figures: Državni zavod za statistiku (DZS), monthly airport traffic releases. Ferry data: Agencija za obalni linijski pomorski promet (ZOLPP), 2026 state coastal line register and per-line timetables.