Catching a train on time

¿A qué hora sale el tren?

ah keh OH-rah SAH-leh el trehn — What time does the train leave?

"¿A qué hora sale el tren para Barcelona?"
What time does the train to Barcelona leave?

Swap "tren" for "autobús" or "vuelo" and the same structure covers buses and flights too — one phrase, three situations.

"The question that's saved me more than once running through a station with two minutes to spare."— Graciela