I'm hoping to make the trip back to kosciuszko national park soon. So I did some country link research and the Thredbo YHA gave me some school bus time table info in an email.
I thought some of you make find this handy.
EDITED
Sydney to Thredbo
TRAIN Central to Canberra (Mon to Fri)
Depart Central 07.04am
Arrive Canberra 11.22am (Kingston)
BUS Canberra to Cooma
Depart Canberra Station (Kingston) 12.15
Arive Cooma 13.30 (Mon, Wed & Fri)
(Every other day Depart Canberra 4.20pm - Arrive Cooma 6.18pm)
BUS Cooma to Jindabyne
$20 pp one way
*Cooma Coaches 64524841
Mon to Friday – not during school holidays
Depart Cooma 2:15pm
Arrive Jindabyne 3:20pm
BUS Jindabyne to Thredbo
$20pp one way
*Snowlink - School BUS
Mon to Friday – not during school holidays
Depart Jindabyne 3.30pm
Arrive Thredbo 4.20pm
RETURN
Thredbo to Sydney
BUS Thredbo to Jindabyne
$20pp one way
*Snowlink - School BUS
Mon to Friday – not during school holidays
Depart Thredbo 8:10am
Arrive Jindabyne 8.55am
BUS Jindabyne to Cooma
Depart Jindabyne 8.55am
Arrive Cooma 9:45am
BUS Cooma to Canberra
Depart Cooma 10:05am
Arrive Canberra 12:03pm
TRAIN Canberra to Central
Canberra 11.53am
Central 15.59pm