The Ukrainians had 243 aircraft?
This was the original number reported. However they have been getting aircraft, including broken up in parts to be reassembled for the last month or so (at least 20 from the Czech Republic.) They are also promised additional aircraft in September. Though they have very few still available.
225 aircraft
The Ukrainian Air Force (Ukrainian: Повітряні Сили України, romanized: Povitryani Syly Ukrayiny) is the air force of Ukraine and one of the five branches of the Armed Forces of Ukraine.