Would everyone like the skinny on getting to/from the Vienna Airport into the city?
You've just landed in a new city. You don't speak the language. Your inclination might be to go the easy route - a walk up taxi or the infamous rip-off City Airport Train (CAT). But you are better than this! You can navigate this short distance travel with a little knowledge and planning. You'll save some money and probably get to your final destination faster.
As an overview, the Vienna International Airport is actually not located in Vienna, but just outside of the city limits in Lower Austria. Subways do not go to the airport. Options to get into the city include train, bus or car. Prices can range from nearly 60 Euro to just a little over 4 Euro. Travel times, depending on where you are going in the city, are probably between 20-45 minutes. I highly recommend using the public transportation function of Google Maps to navigate in Vienna and in Austria.
Train
S7/REX7 and Railjet - This is the most efficient and economical option. The S7/REX7 (REX makes fewer stops as you approach the city) stops at Sankt Marx, Rennweg, Wien Mitte, Praterstern, Handelskai and Florisdorf. The RailJet stops at Hauptbahnhof and Meidling. Both options take about 20 minutes to reach the city and both options run every 30 minutes.
Both options cost 4.60 Euro per adult, 2.30 Euro for 6-14 year old and under 6 is free. These prices include the cost of the journey from the airport to the border of Vienna city as well as a single journey fare within the city of Vienna (2.20 Euro for the journey from the airport to Vienna and 2.40 Euro for the ticket within Vienna). If you have purchased a public transportation pass or the Vienna City Card (highly recommend), such as the 48-hour or weekly pass using the Wien Mobil app, then you only need to pay for the portion of the journey from the airport to the Vienna city border (2.20 Euro). This is true whether coming or going to the airport. If you have the public transportation pass or the Vienna City Card, then once you exit the train you can continue on to the next form of transportation using your pass. A quick note on the Vienna City Card - I recommend to avoid purchasing the card with the airport transfer or HOHO add-on as it is unnecessary.
To purchase the train ticket, as you exit baggage claim, head to the right and go down the ramp (do not stop at the OBB desk, which will be crowded). There are machines for OBB at the bottom of the ramp where there is no line. These machines can be switched to English. From these machines you can guy your 2.20 Euro supplement ticket by selecting the train you want to take and ticking the box that says you only want to go to the Vienna border. If you do not have a public transport pass or the Vienna City Card, then you do not tick this box and you will pay the full 4.60 Euro fare.
I typically take the next train available, whether it is railjet or the S7. Again, use Google Maps to determine the best path to your accommodation. If you are doing this in reverse, from the city to the airport, each of the train stations listed above has an OBB ticket machine - either full 4.60 Euro fare or just the 2.20 Euro supplement. These machines notably take cash and credit cards. Notably, the S7/REX7 have a zero entry floor in nearly all carriages now. The RailJet, however, requires going up 3 steps. The last train leaves the airport at 11:48 pm. The last train from Wien Mitte leaves for the airport at 11:18 pm. The first train leaves the airport at 4:41 am for the city. The first train leaves Wien Mitte at 4:19 am.
Here's a couple of helpful links:
https://www.wien.info/en/travel-info/vienna-city-card/ideale-city-card-348640