It's interesting to watch FlightRadar24 at the moment.
TK1997 from Istanbul to Gatwick has just turned around over the Czech Republic. TK1969 from Istanbul to Birmingham looks like it's changing route too. Meanwhile DY4545 (Stockholm to Tel Aviv) has just turned around over Romania - have they been tipped off about another imminent airspace ban, or is this to avoid a future scheduling risk?
Two TUI aircraft inbound to Manchester at the moment.