The South Island has no passenger rail to Queenstown, Mount Cook or Invercargill, and no scheduled public transport to Milford Sound, Glenorchy or the ski fields. This guide compares renting a car against InterCity coaches and city buses on cost, journey time and reach — and says when the bus is genuinely the better call.
Plenty of people arrive in Christchurch planning to see the South Island by bus. It’s a reasonable instinct if you’ve travelled in Europe or Japan, where the train takes you almost anywhere worth going.
New Zealand doesn’t work that way, and the South Island least of all.
This isn’t a sales pitch dressed up as a guide. There are trips where the bus is the right answer, and we’ll cover those honestly. But if your list includes a national park, a lake, a trailhead or a ski field, the transport network will not take you there — and understanding why saves you from finding out mid-holiday.
Three things, and it’s worth being precise about each.
Long-distance coaches. InterCity runs the only nationwide scheduled network. Its South Island routes connect the main towns — Christchurch, Queenstown, Dunedin, Nelson, Greymouth, Te Anau and points between.
Trains — but only three, and mostly as scenic experiences. The TranzAlpine (Christchurch to Greymouth) and the Coastal Pacific (Christchurch to Picton) are genuinely world-class rail journeys. Dunedin Railways runs tourist services into the Taieri Gorge.
That’s the entire South Island passenger rail network. There is no train to Queenstown, Aoraki/Mount Cook, Wānaka or Invercargill. The last scheduled service to Invercargill, the Southerner, stopped running in 2002.
City buses. Christchurch has a genuinely good urban network — Metro runs four routes through the airport, including Route 3 to the city every 10 minutes. Queenstown and Dunedin have Orbus, where a Bee Card adult fare is $2.50. Inside those cities you don’t need a car at all.
This is the part that catches people out. The following are among the most-visited places in the South Island, and none has a scheduled public bus:
Tours exist to several of these. A tour is not public transport: it runs once a day, costs considerably more per person, and puts you on someone else’s schedule.
Christchurch to Queenstown is the benchmark journey, and the numbers are stark.
| Rental car | InterCity coach | |
|---|---|---|
| Journey time | ~6 hours | ~8 hr 10 min |
| Stops | Wherever you like | Fixed: Ashburton, Geraldine, Tekapo, Ōmarama, Cromwell, Frankton |
| Time at each stop | Your call | A few minutes, driver's schedule |
| Departure time | Whenever you're ready | One or two services a day |
The coach follows almost exactly the route you’d drive. It passes Lake Tekapo and Lake Pukaki. You will see them through a window.
Two extra hours doesn’t sound fatal until you multiply it across a trip. Four intercity legs on a ten-day holiday costs you most of a day in transit — and that’s before you account for the days you can’t reach anything without booking a separate tour.
It depends entirely on how many of you there are, and the maths flips faster than most people expect.
A bus fare is priced per person. A rental car is priced per vehicle.
One person travelling on a tight budget who only wants to see the main towns will usually spend less on coaches. That’s a real answer and we’re not going to pretend otherwise.
But add a second person and the comparison narrows sharply. Add a third and it’s usually not close — particularly once you count the tours you’d have to book to reach anything the coach doesn’t serve. A single Milford Sound day tour from Queenstown, for a family of four, can cost more than several days of car hire.
Our own small cars start from $39 a day, and that price is the same whether one person or five are in the car.
The costs people forget to add to the bus column: tours to reach the places coaches don’t go, taxis or rideshares at each end, extra nights’ accommodation because a journey ate a day, and eating out because you couldn’t carry a chilly bin.
We’d rather you book the right thing than the expensive thing.
Take the bus or stay car-free if:
The strongest itineraries often mix the two: take the TranzAlpine across the Alps, then pick up a car on the other side.
Beyond reach, three things come up again and again.
Weather flexibility. South Island weather changes fast. With a car you flip Tuesday and Thursday when the forecast turns. On a booked coach and tour schedule, you go when the ticket says and see what you get.
Stopping. Every experienced South Island traveller has the same story: the unplanned pull-over that became the best part of the trip. A roadside bay, a lookout, a bakery in a town they’d never heard of. You cannot do that from a coach seat.
Gear. Ski and board bags, hiking packs, a chilly bin, a pram, luggage for four. Loading a car once beats hauling it in and out of terminals for a fortnight.
Most of this article speaks to visitors, but the same logic applies if you live in Canterbury.
Christchurch’s Metro network is good within the city, and thins out quickly beyond it. If you live in Rolleston or the wider Selwyn district and your car is off the road, getting to work, the airport or a weekend away on public transport is a genuine problem. Weekly and short-term hire usually costs less than a fortnight of rideshares.
Between the main towns, yes — InterCity coaches connect Christchurch, Queenstown, Dunedin, Nelson and Greymouth daily. Beyond those towns it becomes difficult. National parks, trailheads, ski fields and most scenic stops have no scheduled service, so you’d need tours to reach them.
Not if you’re staying inside Christchurch or Queenstown, where city buses cover most needs. You do effectively need one if your plans include Aoraki/Mount Cook, Milford Sound, Glenorchy, the ski fields or any DOC walking track, because no public transport serves them.
Three passenger services: the TranzAlpine between Christchurch and Greymouth, the Coastal Pacific between Christchurch and Picton, and Dunedin Railways’ tourist trains. They are scenic journeys rather than a transport network. There is no passenger rail to Queenstown, Mount Cook, Wānaka or Invercargill.
Only by tour coach or scenic flight, both from Queenstown or Te Anau. There is no scheduled public bus. Tours run to a fixed timetable and cost per person, which is why groups usually find self-driving cheaper.
There is no public bus to Mount Cook Village. Limited shuttle and tour services operate seasonally from Christchurch, Queenstown and Twizel, but they run infrequently and must be booked ahead. Most visitors drive.
Yes. Orbus covers Queenstown, Frankton, Lake Hayes Estate, Arrowtown and Jack’s Point, with an adult Bee Card fare of $2.50. It’s good for getting around town, but it doesn’t reach Glenorchy, the ski fields or any of the walking tracks.
Four Metro bus routes serve the airport from Door 9 at International Arrivals. Route 3 runs to the city centre every 10 minutes on weekdays; Route 29 runs every 30 minutes via Fendalton. You can tap on with a contactless card, phone, or Metrocard.
For one person sticking to main towns, coaches are usually cheaper. For two people it’s close. For three or more it’s almost always cheaper to hire a car, because the fare is per person while the car is per vehicle — and because you avoid paying for tours to reach places buses don’t serve.
We drive on the left, roads outside the cities are mostly single-lane in each direction, and distances take longer than the map suggests. None of it is difficult, but it rewards planning. Winter alpine routes need more care and sometimes chains.
The South Island’s best parts are between the towns, and that’s exactly the gap the transport network doesn’t cover.
Boss Auto Rentals hires cars from Christchurch (38 Rich Terrace, Wigram — open 24 hours, seven days) and Rolleston (4 Marble Court), with small cars from $39 a day, AWD Subarus for winter and alpine roads, and 7 and 8-seat people movers for groups. Debit cards accepted for the bond.
📞 Christchurch +64 20 466 6077
📞 Rolleston +64 20 499 1313
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