From Ljubljana: Postojna Cave & Predjama Castle Guided Trip
★ 4.6 · 212 reviews
- Six hours, at Postojna Cave and Predjama Castle
- Small group
- Cheapest here
- Free cancellation
By bus
If you are searching for a Ljubljana to Postojna Cave bus, you are probably weighing two quite different things against each other: a seat on scheduled public transport to the town, and a guided day with the transfer, the guiding and often the entry ticket in one price. We should be straight about which of those this site sells. We sell the second one — sixteen guided listings, ten of them leaving the capital, 6,561 reviews between them, from $74 for six hours with a guide up to $729 for a private day priced for the whole group. We do not sell scheduled coach tickets, we do not print timetables we cannot verify, and this page explains the difference honestly so you can pick the one that fits your trip.

Quick answer
The short answer. A public Ljubljana to Postojna Cave bus is a way of arriving in the town; a guided tour is a way of seeing the cave and the castle with the arranging already done. If you want the second, $74 is our fare from at six hours with a guide, $79 is five and a half hours with transfer for up to eight people and 4.9 from 490 reviews, and $130 is the one most people here have taken, with the tickets and the tour included and 2,846 reviews at 4.8. All three include getting you there and back, which is the part the timetable question is really about.
The basics
A Ljubljana to Postojna Cave bus and a guided day are two different products, and the confusion is understandable. Scheduled coaches run between Slovenian towns, and Postojna is a town with a cave beside it. So a Ljubljana to Postojna Cave bus in the literal sense means: get yourself to the station, buy a seat, ride out, walk to the cave, buy an entry ticket at the door, do the visit, and work out the return in time. That is a legitimate way to spend a day, and it is not what we sell.
What we sell is the whole day in one booking. Sixteen guided listings, ten of them out of the capital. The vehicle, the driver, the guiding and, on four of them, the entry ticket are in one price, and the timing is the operator’s problem rather than yours. $79 prints transfer for up to eight people with an English-speaking driver-guide; $130 prints tickets and tour; $121 prints tickets included.
Why we will not print a timetable. Schedules, fares and stops for public transport change, and a wrong departure time copied onto a web page is worse than no departure time at all. If the scheduled route is what you want, the carrier’s own site is the only place worth trusting for it. Everything factual on this page is off the tour listings instead: the fares, the lengths, the ratings and what each description states.
The thing the two versions really differ on is the castle. Predjama Castle stands in a cliff nine kilometres from the cave, and thirteen of our sixteen listings take both in the same run. Getting between the two by yourself is the part that turns a scheduled arrival into a logistics exercise; on a guided day it is simply the second half of the afternoon.
And the entry ticket. Whichever way you arrive, the cave visit is a guided, timed one with the electric railway underground. On $192, $130, $121 and $158 the entry is printed as part of what you pay. On the others, the inclusions line on the operator page tells you; arriving independently means buying it yourself on the day.
What it is honestly for. A scheduled seat suits people with time and a taste for arranging their own day. A guided listing suits people with one afternoon, a family, or an evening they do not want to spend wondering about the last departure. Both are fine; only one of them is bookable here, and we would rather say that than let you assume otherwise.

Every trip, current fare
The ten listings that leave the capital first, then the one from Trieste and the four from Zagreb. Every one of them includes getting you there and back. Cost per hour divides the fare by the length printed on the listing, and it is a rough guide rather than a verdict. These are combined days: the five and a half hours of a half-day booking and the thirteen hours of a run out of Zagreb include the driving, and driving is not sightseeing. The listings that print a private booking are priced for the group rather than per person, which is why they sit at the top of the column and why they can work out cheaper for four or five people than a seat each on a shared bus.
| Tour | Length | Price | What is included | Cost per hour | Rating |
|---|---|---|---|---|---|
| From Ljubljana: Postojna Cave & Predjama Castle Guided TripOur fare from — 212 reviews | 6 h | $74 | A guided day trip through the winding system of caverns, with a historic castle tour | $12.33 | 4.6 · 212 |
| Ljubljana: Postojna Cave and Predjama Castle TourRated 4.9, five and a half hours | 5.5 h | $79 | Cave and castle with transfer for up to eight people and an English-speaking driver-guide | $14.36 | 4.9 · 490 |
| Postojna Cave & Predjama Castle half-day – tickets includedHalf a day, tickets included | 5.5 h | $121 | The dramatic stalactites and stalagmites, then the castle built into a cave; tickets included | $22.00 | 4.8 · 199 |
| Ljubljana: Postojna Cave & Predjama Castle Tickets and TourThe largest record — 2,846 | 6 h | $130 | The cave and the medieval cave castle of Predjama, described as two of the most precious jewels of Slovenia, tickets and tour | $21.67 | 4.8 · 2,846 |
| Ljubljana: Postojna Cave, Predjama Castle & Boat TourAdds Postojna Cave Park | 7 h | $228 | The cave, Predjama Castle and Postojna Cave Park on a day tour out of the capital | $32.57 | 3.8 · 4 |
| From Ljubljana: Postojna Cave, Predjama Castle, & Piran TourAdds the Adriatic coast | 10 h | $118 | The cave, Predjama — described as the world’s largest cave castle — and the coastal town of Piran, up to eight guests | $11.80 | 4.9 · 459 |
| Ljubljana: Lake Bled, Postojna Cave, and Predjama Day TourNames the cave train outright | 10 h | $131 | A pletna boat to Bled Island, Bled Castle, Predjama, and a train ride into the cave | $13.10 | 4.9 · 288 |
| From Ljubljana: Lake Bled, Postojna Cave and Predjama CastleSmall group, up to eight | 11 h | $127 | Lake Bled, the cave and Predjama in one full day, small group of up to eight people | $11.55 | 4.9 · 178 |
| Slovenia's Prime attractions: Lake Bled & Postojna CaveBled and the karst, rated 4.9 | 10.5 h | $182 | Alpine Bled and its surroundings, the mystic karst of the cave, and the Predjama legend of Slovenia’s local Robin Hood | $17.33 | 4.9 · 64 |
| From Ljubljana: Postojna Cave, Predjama Castle and Lake BledA group day out, rated 4.7 | 11.5 h | $164 | The ancient underground passages and Lake Bled on one group day out of the capital | $14.26 | 4.7 · 228 |
| From Ljubljana: Lake Bled & Postojna Cave with Entry TicketsOur top pick — 878 reviews | 11.5 h | $192 | Two of Slovenia’s attractions in a day: the ancient underground passages and emerald-green Lake Bled, entry tickets included | $16.70 | 4.8 · 878 |
| From Trieste: Postojna Cave & Predjama CastleThe one out of Trieste | 6 h | $137 | The best-known cave in the world and Predjama, the only preserved cave castle in Europe, out of Trieste | $22.83 | 4.8 · 545 |
| From Zagreb: Ljubljana, Postojna Cave & Predjama Castle TourFrom Zagreb, rated 4.9 | 12 h | $134 | Ljubljana, the cave and the striking Predjama Castle on a guided tour from Zagreb | $11.17 | 4.9 · 74 |
| Zagreb: Ljubljana and Postojna Cave Day Tour with ticketsFrom Zagreb, thirteen hours | 13 h | $158 | Ljubljana, the cave and the dramatic Predjama Castle in one day out of Zagreb, with tickets | $12.15 | 4.6 · 85 |
| From Zagreb: Postojna Cave, Lake Bled, Ljubljana Day TripFrom Zagreb, a young listing | 10 h | $302 | The view of Lake Bled, the cave’s tunnels and the streets of Ljubljana with your guide | $30.20 | 4.8 · 3 |
| From Zagreb: Postojna Cave, Bled Lake & Ljubljana - PrivatePrivate, priced for the group | 13 h | $729 | A private, tailored journey through the depths of the cave, Bled Lake and Ljubljana at your own pace | $56.08 | 4.5 · 8 |
Two ways
We sell one of these columns. The Ljubljana to Postojna Cave bus column is here so you can see what you would be taking on, not because we are going to talk you out of it.
| What you are deciding | A Ljubljana to Postojna Cave bus | A guided listing from this site |
|---|---|---|
| What you buy | A seat to the town, bought from the carrier | The transfer, the guiding and often the entry ticket in one fare, from $74 |
| Getting to the castle | Nine kilometres you arrange yourself | Included on thirteen of the sixteen listings |
| The entry ticket | Bought by you at the cave on the day | Printed as included on $192, $130, $121 and $158 |
| The timing | Yours to plan, including the last departure back | The operator’s: five and a half to eleven and a half hours out of the capital |
| If your plans change | Whatever the carrier’s terms say | Free cancellation is shown across the listings gathered here |

The verdict
If a Ljubljana to Postojna Cave bus was going to be the cheapest way out there: $74. Our fare from, six hours, 4.6 from 212 reviews, a guided day trip into the winding system of caverns plus a historic castle tour. It is the listing that gets closest to the do-it-yourself budget while still carrying you both ways and adding a guide.
If you want the shortest day: $79 or $121. Five and a half hours each. $79 holds 4.9 from 490 reviews and prints transfer for up to eight people with an English-speaking driver-guide; $121 holds 4.8 from 199 with the tickets included and names the dramatic stalactites and stalagmites in its own description. Either has you back in the city with the evening intact.
If you want the safest booking on the site: $130. 2,846 reviews at 4.8, six hours, the cave and the medieval cave castle of Predjama, tickets and tour included. More people have taken this than everything else here put together, which is the kind of fact worth more than a clever comparison.
If you have one day and want it to hold the country: $192. Our top pick: eleven and a half hours, the underground passages and emerald-green Lake Bled, entry tickets included, 4.8 from 878 reviews. Doing this on scheduled transport in a day is the sort of plan that works on paper and rarely on the road.
If there are several of you: $118, $127 or $729. $118 is ten hours with the cave, the castle and the Adriatic town of Piran, capped at eight guests, 4.9 from 459 reviews; $127 is eleven hours on Bled, the cave and Predjama, also capped at eight, 4.9 from 178. $729 is the private, tailored version out of Zagreb, thirteen hours, and its fare covers the group rather than each person — which is the point at which four or five travellers should do the arithmetic properly before assuming a seat each is cheaper.
If your base is not the capital: $137 or $134. Six hours from Trieste at 4.8 from 545 reviews, and twelve from Zagreb at 4.9 from 74 with Ljubljana added on the way. Both solve the same problem this page is about — the getting there — across a border, which is exactly where arranging it yourself stops being fun.
Book direct
Every one of them includes the transfer both ways. The short half-days first, then the full days that add Lake Bled or the coast. Fares and ratings are live off the listing pages.
★ 4.6 · 212 reviews
★ 4.9 · 490 reviews
★ 4.8 · 199 reviews
★ 4.8 · 2,846 reviews
★ 3.8 · 4 reviews
★ 4.9 · 459 reviews
★ 4.9 · 288 reviews
★ 4.9 · 178 reviews
★ 4.9 · 64 reviews
★ 4.7 · 228 reviews
★ 4.8 · 878 reviews
The variables
The fare is only one of them, and on a day with this much driving in it, rarely the one that decides between a Ljubljana to Postojna Cave bus and a guided listing.
Whether you want to plan the day or have it planned
This is the real choice. A guided listing is a fixed departure and a fixed return; a scheduled seat is two timetables and a nine-kilometre gap between the cave and the castle in the middle.
Whether the castle is part of your plan
Thirteen of the sixteen listings include Predjama Castle. Independently it is a separate journey, and it is the piece most people underestimate.
How many of you there are
$79 prints transfer for up to eight with a driver-guide; $729 is priced for the group rather than per person. For four or five travellers, compare that against several individual fares before deciding.
How much slack your trip has
Our shortest guided days are five and a half hours. Independently, the same two sights are a full day with the planning on you, which is fine if the day is spare and expensive if it is not.
Straight answers
«Bus from Ljubljana to Postojna cave». The most common way of asking this, and it usually means one of two things: how do I get there without a car, or is there a cheap version. The answer we can give honestly is that every listing on this site includes the transfer both ways, and the cheapest of them is $74 at six hours with a guide. For scheduled coach services, the carrier’s own site is the place to look, and we are not going to reprint a timetable we cannot stand behind.
«Bus Ljubljana Postojna cave». Three words, no verb, and normally typed by somebody comparing the cost of a seat with the cost of a tour. The comparison is not like for like: a tour fare covers the driving, the guiding, the nine kilometres out to Predjama Castle on most listings, and the entry ticket on four of them. Line those up before you decide which looks cheap.
«Postojna cave bus from Ljubljana». The same question with the words rearranged, and worth one honest addition: the cave visit itself is a timed, guided one with the electric railway underground, however you arrive. Turning up independently does not get you a different cave; it gets you the same visit with the arranging on your side.
«Is the tour transfer a coach or a minibus?» It depends on the listing, and the listing says so. $79 prints transfer for up to eight people, $118 and $127 cap the group at eight, and the rest are ordinary group departures. If vehicle size matters to you, that line is on the page before you pay.
«Can I get there and back in an afternoon?» On a guided listing, yes: $79 and $121 run five and a half hours with about an hour of driving at each end. Independently it is a longer day, because you are fitting a cave visit and possibly a castle around somebody else’s departure times.
«Do I still need to buy the cave ticket?» On four listings it is printed as included: $192, $130, $121 and $158. On the others, read the inclusions line. Arriving on your own always means buying it yourself, at whatever the cave charges on the day.
«Which is better value?» Honestly, it depends on what your time is worth to you and how many of you there are. What we can say without dressing it up: a guided day removes three separate decisions — how to get there, how to reach the castle, and how to be sure of getting back — and the cheapest of those days on this site is $74.
Mistakes
Four of the five come from comparing a Ljubljana to Postojna Cave bus with a guided day as if they were the same product.
One is transport to a town. The other is the driving both ways, the guiding, the castle on most listings and the entry ticket on four of them. $74 is the cheapest of the second kind here.
Predjama Castle is on thirteen of the sixteen listings and it is the piece that is hardest to arrange independently. If the castle is part of why you are going, price that in first.
It never comes with a transport seat. It is printed as included on four of our listings, and on the others the inclusions line is where the answer is.
A guided listing has a stated length: five and a half hours, six, seven, ten, eleven and a half. Independently the last departure back is yours to check, and it is the detail that turns a good day into a stressful one.
Public schedules change and the copies do not. If you do go independently, take the times from the carrier. Everything on this page comes off the tour listings instead, which is what we can actually check.
Decided against the Ljubljana to Postojna Cave bus? The ten guided days out of the capital are compared hour by hour and fare by fare on a page of their own.
Compare the ten guided days→Common questions
No. This site sells guided tours with the transfer included — sixteen listings, ten of them leaving the capital. For scheduled coach services, the carrier’s own site is the place to look.
Yes, on every listing gathered here. The vehicle, the driver and the guiding are in the fare, and on four listings the cave entry ticket is printed as included too.
$74, our fare from: six hours, a guided trip through the caverns plus a historic castle tour, 4.6 from 212 reviews.
About an hour each way between the capital and the cave, which is why the shortest guided days here are five and a half hours.
It stands nine kilometres from the cave, so independently it is a separate leg to arrange. Thirteen of the sixteen listings here include both in the same run.
$130, with 2,846 at 4.8: six hours, the cave and Predjama Castle, tickets and tour included.
$79 prints transfer for up to eight people with a driver-guide, and $729 is a private day priced for the group rather than per person.
Free cancellation is shown across the listings gathered here, so an early booking is not a commitment you cannot undo.
Go deeper
The ten listings that leave the capital, and what each day includes.
Underground trainThe electric railway underground, and which listings put you on it.
Inside the caveThe pairing almost every listing sells: the cave and the castle in the cliff.
Predjama CastleThe castle built into a cliff nine kilometres from the cave.
Entrance and tickets