Impatient travelers will be happy to know that Prague Ruzyně Airport (PRG) is only 10km outside the city centre.
But remember to buy a 26czk single ticket (€1 approx.) or a day ticket at the kiosk in the airport. Get it punched and hop on the No. 119 to Dejvická where you can get the metro or tram the rest of the way.
Another option to consider is the Airport Express bus which gets you into Prague’s main train station in about 35 minutes for about 50czk.
If you opt for comfort, book a private car transfer in advance. Prague airport transfers cost around €20 (1-4 persons in a car) to any central Prague destination. And if you want a taxi, go through the authorized companies.