Harry, you can join the Aircraft and Flights tables with SQL:
SELECT
Aircraft.Comment,
Aircraft.LastTime,
Aircraft.FirstTime,
Aircraft.AircraftTypeLong,
Aircraft.AircraftTypeSmall,
Aircraft.Airline,
Aircraft.ModeS,
Aircraft.ModeSCountry,
Aircraft.Registration,
Flights.Route,
Flights.Callsign,
Flights.EndTime,
Flights.ModeS,
Flights.MsgCount,
Flights.Registration,
Flights.Session,
Flights.StartTime
FROM
Aircraft
LEFT OUTER JOIN Flights ON (Aircraft.ModeS=Flights.ModeS)