Is it worth buying a rail pass?

Usually, no. If you are only visiting 3-4 cities, point-to-point tickets bought in advance are almost always cheaper than a multi-day Eurail pass.

Do I need to carry cash?

Yes. While cards are accepted in hotels and major restaurants, many small cafes and mountain huts are strictly cash-only.

How to plan an efficient Austria itinerary

Focus your trip on the Vienna-Salzburg-Innsbruck axis, which is easily connected by the OBB Railjet train system. Dedicate 3 days to Vienna, 2 to Salzburg, and 2 to the Tyrol region to experience the best of urban history and Alpine landscapes without constant travel fatigue.

Use the OBB Railjet as your backbone. Don't rent a car for city-to-city travel. Use the Austrian Federal Railways (OBB) website or app to book trains between major hubs. Book 'Sparschiene' tickets at least 30 days in advance to save up to 50% on fares.
Prioritize your hubs. Vienna requires a minimum of 3 days to cover palaces and museums. Salzburg needs 2 days for the old town and fortress. Allocate 2 days for Innsbruck or the surrounding Zillertal valley if you want mountain hiking or skiing.
Time your mountain visits. If visiting for alpine activities, book your stay in a 'gasthof' outside the city center. Ensure you are visiting between June and September for hiking, or December and March for reliable snow coverage.

Is it worth buying a rail pass?: Usually, no. If you are only visiting 3-4 cities, point-to-point tickets bought in advance are almost always cheaper than a multi-day Eurail pass.
Do I need to carry cash?: Yes. While cards are accepted in hotels and major restaurants, many small cafes and mountain huts are strictly cash-only.