Several companies run buses from Salta to Jujuy. The journey takes about 2.5h.
Several companies also run to and from the Bolivian border. Make sure you buy your bus ticket in the same country as the majority of the journey you are undertaking, since getting refunds or reductions for split/delayed journeys is difficult once you cross the border.
There are flights to the Gobernador Horacio Guzmán International Airport
Yok Wahi Hostel, La madrid, dorms from Ar$50, a bit overpriced and their breakfast is not all that is promised, but all right.
Hostal Casa de Barro, Otero 294 esq. Belgrano, Tel: +54 388 4229578. Dorms: 45, matrimonial: 100. firstname.lastname@example.org. Small but fairly cute hostel with minimalist/rustic design and only a handful of rooms. Central location, no wifi. Elderly lady who runs the place is a little forgetful, so best to confirm with the younger staff for bookings/essential items.
dublin hostel, Independencia 946, ☎ +54 (0388) 4229608, . checkin: 12:00; checkout: 11:00. Dublin hostel is a combination of a hostel and a Irish pub. They have 45 different beers. A nice place to try all the local beers. the bar is open from 21:00 til 1:00 At night (21:00-00:00) you can order pizza´s(ar$45) or empandada´s(ar$45) Also there is a kitchen to cook your own food. They have one big dorm room with 18 beds. There are 2 private rooms for 2,3 or 4 persones. dorms from ar$60 inclusive breakfast.. edit