Vienna to Prague by car: via Brno or Znojmo, and the D52 gap

From Wien Hauptbahnhof to Praha hlavní nádraží there are two sensible corridors: the A5 north to Mikulov, then Brno and the D1, or the S3 to Znojmo and the I/38 to the D1 at Jihlava. The Znojmo route is roughly 30 km shorter, but far more of it is ordinary two-lane road through villages, so it is usually slower: the OSRM router calculates about 3 h 45 min via Brno and about 4 h 20 min via Znojmo, before traffic.

The two routes at a glance

Via Mikulov and Brno: motorway with a gap

Both routes leave the station along the Gürtel and join the A23 Südosttangente. For Brno, follow the S2 and S1 to the start of the A5 Nord/Weinviertel Autobahn at Eibesbrunn. The four-lane A5 ends at Poysbrunn; the two-lane Drasenhofen bypass (about 5 km, opened 8 September 2019) and a short piece of the B7 take you to the border. Austria's transport ministry says the full four-lane build there cannot start before 2031.

Across the border the road becomes the I/52, which skirts Mikulov on a bypass with several roundabouts and crosses the Nové Mlýny reservoirs to Pohořelice. This two-lane I/52 is the road ŘSD, the Czech road authority, plans to replace with the D52 motorway. So far only the D52 between Rajhrad and Pohořelice, open since 1996, is motorway.

The missing piece is about 23 km, from Pohořelice to the border. It received environmental approval in July 2025, with construction then scheduled for 2026 to 2032, and in May 2026 ŘSD's Brno office said construction could begin at the end of 2027. Until then this is a country road, where the Czech limit outside towns is 90 km/h unless signed otherwise.

North of Pohořelice, the D52 and a four-lane stretch of the I/52 bring you to the D1 on the southern edge of Brno. The D1 around Brno is free between exits 182 (Kývalka) and 210 (Holubice); the Czech vignette applies from Kývalka to exit 6 (Průhonice) on the edge of Prague. The D52 needs it too, between exits 10 and 23.

Via Znojmo and Jihlava: shorter, on slower roads

For Znojmo, leave the A23 for the A22 Donauufer Autobahn to Stockerau, then take the S3 Weinviertler Schnellstraße past Hollabrunn to Guntersdorf. The S3 is an expressway, so the vignette applies, although most of it has two lanes one way and one the other. Two stretches are single carriageway, Göllersdorf–Großstelzendorf and the Hollabrunn bypass; the first is to get a physical central barrier from 2028.

From Guntersdorf the B303, which needs no vignette, runs to the Kleinhaugsdorf–Hatě crossing. The I/38 then continues through Znojmo and Moravské Budějovice to Jihlava. It is a class I road, not a motorway, so the Czech vignette starts only when you join the D1 at exit 112.

Vignettes on both routes

Austrian motorways and expressways need a vignette, and both corridors join one, the A23, a few minutes from the station; neither passes a separate section-toll road. The 1-day digital vignette costs €9.60 and the 10-day €12.80 (2026 prices, checked 26 September 2026). The 1-day covers a calendar day, not 24 hours. Choose immediate validity in the ASFINAG shop; online 2-month and annual vignettes are valid from the 18th day at the earliest, but at once if bought from a sales outlet.

In Czechia a 1-day vignette costs CZK 230 and a 10-day CZK 300 (2026, checked 26 September 2026); the 1-day runs until 23:59:59 on the chosen day. Electric cars are exempt, but foreign-registered ones must file an exemption notification first. Full tables are in our motorway vignette guide.

Border checks on the way back

Austria is checking traffic at its border with Czechia from 16 September 2026 to 15 March 2027. The checks are made on entry into Austria, so they affect the drive home rather than the drive to Prague, and not every car is stopped. Czechia has notified no checks of its own. Carry a passport or ID card for everyone in the car; a driving licence does not count (ÖAMTC). Austria's other checked borders, and what the checks look like, are in border checks in 2026.

D1 works: the Šmejkalka bridge

At kilometre 24 of the D1, near Senohraby, ŘSD is rebuilding the historic Šmejkalka bridge, so both routes pass the works. Since 6 September 2026 traffic has used the rebuilt Prague-bound half, with two narrowed lanes each way until at least the end of September; the Brno-bound half is then demolished and rebuilt. The bridge is due to be finished in summer 2027. Check dopravniinfo.gov.cz for current restrictions.

Why apps can pick different corridors

On paper the corridors look close: the Znojmo route's 30 km or so saving is worth roughly 14 minutes at 130 km/h, but driving its extra 75 km or so of ordinary road at 90 km/h costs about 15. Villages and roundabouts then tip the balance towards Brno.

Brno is the usual pick, but a long queue on the D1 or the I/52 can make an app switch to Znojmo. When the apps disagree by more than a few minutes, check the corridor first (see why navigation apps show different arrival times). To tell which one your app chose:

• Distance: about 300 km means Znojmo; about 335 km means Brno.
• Road names: A22, S3, I/38 or Jihlava mean Znojmo; A5, Mikulov, D52 or Brno mean Brno.
• Settings: 'avoid tolls' or 'avoid motorways' changes the route; see app settings for Central Europe.

To see today's live times for this exact trip, compare this route with Mapssy and open it in the app you prefer.

Arriving at Praha hlavní nádraží

After Průhonice the D1 continues into the city as Prague's north–south arterial (5. května, the Nusle Bridge, Legerova, Wilsonova), which runs past the main station.

The station sits on the boundary of Prague 1 and Prague 2, and the streets around it are paid parking zones. Visitors may park in violet zones for up to 24 hours and in orange zones for the time on the sign, paying at the machine (koruna or euro coins, Visa or Mastercard) or online. Blue zones are for residents; visitors may stay one hour in the centre (three hours further out), paying online, as blue zones have no machines. Visitor rates are up to CZK 80, 60 or 40 an hour depending on the street's price band (TSK price list published 2025, checked 26 September 2026).

It is simpler to park on the edge of the city. P+R Chodov (692 spaces under the Westfield Chodov centre, 2 m height limit) and P+R Opatov (111 spaces, close to the D1 from Brno; a 498-space multi-storey, P+R Garáže Opatov, is due to open there on 30 September 2026) charge CZK 50 for the first 24 hours, then CZK 10 per started hour. Both are on metro line C, which runs to Hlavní nádraží without a change.

Checklist for the drive to Prague

• Have an Austrian vignette valid on your travel day and a Czech one for the D1.
• Pack passports or ID cards for everyone for the Austrian check on the way back.
• Pick Brno or Znojmo and check the distance and road names in your app match.
• Check D1 restrictions at the Šmejkalka bridge (km 24) on dopravniinfo.gov.cz.
• From 1 November, winter-tyre rules apply in both countries in wintry conditions; see winter driving rules.
• Decide where to park: a P+R on metro line C or a paid zone near the station.
• Compare this route with live times just before you leave, and again before the Austrian border on the way home.