overnight bus; night bus
A long-distance bus that travels through the night, typically with reclining seats and sometimes toilets on board.
東京から大阪まで夜行バスで行く。
I go from Tokyo to Osaka by overnight bus.
夜行バスは朝の6時に到着する予定です。
The night bus is scheduled to arrive at 6 a.m.
I took the overnight bus bound for Osaka.
I decided to travel to Tokyo by overnight bus.
It's better to book the overnight bus early.