Here is a log (straight from the book) of what was seen on a recent non-spotting trip to Prague courtesy of Wizzair from Luton (please note that only aircraft of interest to me were noted, and many more aircraft were present at the excellent museum at Kbely).
HA-LPB A320 - our machine to Prague
HA-LPC A320 - our machine back to Luton
Many other military aircraft are present too including DC3 / Vampire / Viggen / Mi 24 / Mig 21/ Mig 23 / Me 262 / F4 / T33 etc. There is also a shop, and refreshments are available if you are feeling a bit peckish. To get to the base we found the quickest way was to get the Yellow metro line to Pavlovka (or something spelt similar to that), then bus 185, and get off in around 7 stops - you will see the base/museum when you get close anyway. I glider field adjacent to the base is also passed on the way. A 3 day pass for all public transport costs around £10, and the museum itself is free.