A long haul.

[Topstudent]

I'm trying to write a dialog. Two truckers are talking:

Trucker #1: I've been on the road for about two weeks now.
Trucker #2: Okay. That's a long haul. So where you headed now?

Is there any Americans who could please tell me if I can use "a long haul" about several trips in a row as I have in the dialog, or can it only be used about one trip? Thanks.

 

[SoothingDave]

Especially when talking about literal hauling "a haul" would refer to one trip. Picking up at point A and dropping off at point B.