check into
US /tʃek ˈɪntuː/
UK /tʃek ˈɪntuː/

1.
registrarse, facturar
to register at a hotel or airport
:
•
We need to check into the hotel before 3 PM.
Necesitamos registrarnos en el hotel antes de las 3 PM.
•
Passengers are advised to check into their flights at least two hours before departure.
Se aconseja a los pasajeros facturar sus vuelos al menos dos horas antes de la salida.
2.
investigar, examinar
to investigate or examine something
:
•
The police are checking into the suspicious activity.
La policía está investigando la actividad sospechosa.
•
I need to check into why the system crashed.
Necesito investigar por qué el sistema falló.