Poland’s Kraków Opens 4.5 km Fast Tram Extension With Underground Stations and Shorter Journeys for Travellers

Image credit – Official public transport operator website for Kraków

Kraków, one of Poland’s most visited cities, has opened a 4.5-kilometre fast tram extension to Mistrzejowice, introducing a partly underground transport connection designed to shorten journeys into the city centre. The fourth phase of the Kraków Fast Tram network opened to passengers on 26 September 2026, following an official inauguration journey on 25 September. According to the city’s public transport operator, MPK Kraków, the new route includes a 1,230-metre tunnel, two underground stops and improved interchange facilities. City officials estimate that journeys from Mistrzejowice towards central Kraków could become approximately 12 minutes faster.

The opening marks a substantial change for residents, commuters and visitors travelling through the city’s north-eastern districts.

The new infrastructure connects previously underserved neighbourhoods more directly with Kraków’s wider tram system, while changes to several established tram and bus routes are reshaping how passengers move around the city.

What Has Changed With Kraków’s New Fast Tram Extension?

The project, known as Krakowski Szybki Tramwaj Stage IV (KST IV), connects the Wieczysta area with Mistrzejowice.

It follows streets including Meissnera, Młyńska, Lublańska, Dobrego Pasterza, Bohomolca and Jancarza.

The city says construction took approximately 36 months, with passenger services beginning after the necessary technical and operational approvals were secured.

Key Facts About the New Kraków Tram Route

The line brings tram services to areas of Mistrzejowice, Prądnik Czerwony and Olsza while providing a shorter route towards the centre.

How Will the New Tram Route Make Travelling Across Kraków Faster?

The main advantage comes from reducing the distance passengers need to travel between Mistrzejowice and central Kraków.

Previously, tram journeys towards the central ring involved travelling approximately 11 kilometres through Nowa Huta.

The new alignment provides a more direct route through Prądnik Czerwony.

Kraków’s authorities estimate that the revised connection will save around 12 minutes on journeys towards the centre.

This is a projected journey-time benefit, not a guarantee that every passenger will save precisely 12 minutes.

The actual improvement depends on the starting stop, destination, tram service and any required connections.

Nevertheless, the shorter alignment provides an important alternative for passengers who previously relied on longer tram journeys or local buses.

Which Tram Services Use the New Mistrzejowice Extension?

The opening introduced significant changes to Kraków’s public transport network.

MPK Kraków confirmed that routes 9, 12 and 16 would use the new tracks.

Line 12 replaces the former line 52 designation under the revised arrangements.

Other network changes include renumbering the former line 50 as line 7 and introducing line 15 between Krowodrza Górka and Osiedle Piastów.

Bus services have also been reorganised. Route 182 now provides a shorter connection between Osiedle Na Stoku and Mistrzejowice.

These changes form part of a phased network restructuring, meaning passengers should check current timetables instead of relying on older route maps.

What Makes the Underground Tram Section Important?

The extension’s 1,230-metre tunnel is among its most distinctive engineering features.

It includes two underground stops and a multilevel interchange around Rondo Polsad.

The underground alignment allows trams to travel through a busy urban area while reducing some of the conflicts associated with surface road traffic.

For passengers, the new infrastructure offers additional boarding points and transfer opportunities along a corridor where public transport previously depended heavily on buses.

The project also required extensive work beneath city streets.

According to MPK Kraków, construction involved rebuilding or relocating more than 330 kilometres of underground utility infrastructure, including electricity, telecommunications, water, sewage, gas and district heating networks.

The scale of this work demonstrates that the investment extended well beyond laying new tram tracks.

Why This Matters

Kraków’s tram extension is significant for both urban mobility and the visitor experience in Poland’s historic southern city.

Faster connections between outer residential districts and the centre can make public transport more practical for residents, business travellers and tourists staying outside the Old Town.

The project also introduces larger-capacity vehicles along an important corridor. City officials note that a standard bus accommodates approximately 100 people, an articulated bus up to 160, and the longest trams up to 300.

The new route therefore provides the infrastructure for carrying more passengers per vehicle.

Environmental improvements form another important part of the development.

According to MPK Kraków, the project includes more than 55,000 square metres of new greenery, over 1,400 trees and approximately 15,000 square metres of green tram tracks planted with sedum.

The authority reports that 74% of the project area remains biologically active. These are reported project features, not independently measured reductions in emissions or road congestion.

How Much Did the Kraków Tram Project Cost?

The project’s official website gives an overall project value of approximately PLN 1.92 billion, including net capital expenditure of approximately PLN 616 million.

It was developed through a public-private partnership arrangement, an important feature of the investment.

Under the agreement, the private partner is responsible for designing, constructing and subsequently maintaining the infrastructure over a 24-year contractual period.

The project’s general contractor is Gülermak.

The extension represents a significant example of how public transport investment can combine infrastructure construction with long-term maintenance responsibilities.

It should not, however, be assumed that the total project value represents construction expenditure alone.

What Travellers Should Know

Visitors using Kraków’s tram network should be aware that the new extension opened alongside substantial timetable and route changes.

The line can be useful for travellers staying in north-eastern Kraków, but its value depends on their accommodation and intended destination.

Before Booking or Travelling

• Check your tram number: Routes 9, 12 and 16 use the new extension.
• Review revised connections: Several other tram and bus lines have been renumbered, rerouted or suspended.
• Allow time for transfers: The new interchange around Rondo Polsad connects different transport movements.
• Check service notices: Further network changes were introduced on 5 October 2026 because of construction and maintenance elsewhere in Kraków.
• Buy a valid ticket: The city’s transport authority publishes its ticket options and prices online.

The official ZTP Kraków ticket guide lists a regular 30-minute or single-trip ticket at PLN 6 and a 60-minute ticket at PLN 8.

Passengers should verify the current fare, validity and zone requirements before travelling.

Why Was the Tram Opening Delayed?

The new extension experienced a temporary delay before passenger services began.

On 22 September, Kraków’s municipal authorities reported a software fault identified during testing that affected safe operations through the tunnel.

The city stated that passenger services could not begin until the contractor completed the required system calibration.

Following the necessary checks and certification, the official inauguration journey took place on 25 September, with regular passenger services beginning the following day.

The sequence illustrates the importance of technical testing before opening new underground transport infrastructure.

Frequently Asked Questions

1. When did Kraków’s new tram extension open?

The 4.5-kilometre Wieczysta–Mistrzejowice extension opened to passengers on 26 September 2026, following an official inauguration on 25 September.

2. How much time does the new route save?

Kraków’s authorities estimate that journeys from Mistrzejowice towards the city centre could be approximately 12 minutes shorter.

3. Which tram lines serve the extension?

Tram lines 9, 12 and 16 were introduced onto the new route as part of the September 2026 network changes.

4. Does the new tram route have underground stations?

Yes. The extension includes a 1,230-metre tunnel and two underground stops, including interchange infrastructure near Rondo Polsad.

5. Can tourists use the new tram extension?

Yes. Visitors can use the route as part of Kraków’s public transport network, subject to normal ticketing arrangements.

Closing Update

As of 8 October 2026, Kraków’s fourth fast tram extension is operating between Wieczysta and Mistrzejowice, following its opening on 26 September.

The 4.5-kilometre route introduces two underground stops, additional tram connections and a shorter journey towards central Kraków.

Passengers should note that wider tram and bus network adjustments continued into October, including further changes introduced on 5 October.

Visitors and residents can consult official MPK Kraków and ZTP Kraków announcements for current timetables, route changes and ticket information.