Well Peach lets see what do we all have. ANd maybe combined we can come up with enough flights.
1st. We are looking for three flights (with at least one having a connection, though in all cases their should be connections). We are looking for one early (am, maybe arrival?), one later in the day (perhaps afternoon), and then one much later (Pm night?).
2nd: Looking for arrivals on the 19th, and departures either very late the 18th, but most likely early am on the 19th.
Well from looking at flights through Warsaw, Prague, Amsterdam, London, Paris,)
Its no problem getting Azaria & Hendekea's late flight since almost all flights to various connecting citites can get you there at 6:45pm. So thats one that could go through London, Prague, Warsaw, Paris and Amsterdam (they each have options) for that late flight.
I can get one flight from VNO on the 19th 6:00am to Prague (PRG) that arrives in Prague at 6:35am. Either AZ 3305/OK 0871
That gives teams the chance to connect to from PRG to SPU departing 9:55am on TP 7933/9013 that arrives in SPU at 1:55pm. That could be TK & Rachel.
We also have the flight VNO departs 6:00am arrives to FRA at 8:35am OK 0871 / AF 6312*. Departs FRA at 9:30am arrives in SPU at 12:55pm. LH 2478* / OU 0654.
Right there are two flights that could get the majority of teams in to SPU for stuff during the day.
And there is a huge host of flights that could get a team in at 6:45pm (really a ton).
Thats the best I could come up with over the last hour.