Are there nonstop flights from Girona (GRO) to Maastricht (MST)?

Yes. Ryanair fly this route. Flight time is about 1h 42m.

Girona → Maastricht

Girona-Costa Brava Airport (GRO) to Maastricht Aachen Airport (MST)・1,027 km

Nonstop flights available (1 airline). Flight time about 1h 42m. Nonstop return flights also operate.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.