Where and how do I take the train from Azimut Hotel to the international airport? Where do I purchase the tickets?
Wien Hbf (Haupbahnhof) station is at 5 mins walk from the hotel. From Hbf, you can take either take (i) Flughafen RJ or (ii) S7 line that will take you directly to Airport. The ticket can be bought either online (oebb.at) or directly at the station from vending machine or ticket counter.
As mentioned by Manish G, go to Wien Hbf train station and take Railjet (RJ) train towards Flughafen Wien Bahnhof. This direct journey takes 15mins and the train usually arrives either at platform 9 or 10 (at Wien Hbf) every 30 mins. (Please check the train departures display at the station for timings & platform info). Tickets cost 3.9 euro per person and can be booked online (tickets.oebb.at/en/ticket) in advance easily. You can also purchase tickets at the "Wiener Linien" ticket counter (located at ground level near to the main entrance). Please note that the ticket counter is very busy during peak hours and you may have to wait between 30mins. to an hour for your turn. Also, if you already have a 24/ 48/ 72 hour or weekly ticket, you can ask the ticket counter staff to add the trip to airport for a small fee.
Get an answer from AZIMUT Hotel Vienna staff and past guests.