day coach

an ordinary railroad passenger car, as distinguished from a sleeping car, parlor car, or other deluxe accommodations.

the class of airline coach for daytime flight at regular fare. Compare night coach.

Origin of day coach

An Americanism dating back to 1870–75

The porter was deftly transforming the day-coach into a narrow lane entirely surrounded by portires.

Excuse Me! |Rupert Hughes
Begrimed but radiant, the boy stepped from a day-coach at two o'clock in the morning at Winona.

Charles Frohman: Manager and Man |Isaac Frederick Marcosson and Daniel Frohman
But her mother bulked large and had been too long accustomed to her own rocking-chair to rest in a day-coach.

We Can't Have Everything |Rupert Hughes
“Across the continent in a day-coach, I suppose,” laughed Hortense, yawning.

The Girl from Sunset Ranch |Amy Bell Marlowe

At the first stop I run forward on the off-side of the train, pass the Pullmans, and duck under and take a rod under a day-coach.

The Road |Jack London