This 5 nights 6 days package approaches the Holy Cave from the Pahalgam side. You drive from Srinagar to Pahalgam through the saffron fields and along the Lidder river, and on darshan day fly from Pahalgam helipad to Panchtarni and back. After darshan come Srinagar, a day at Gulmarg and a day at Sonmarg.
The 4 nights 5 days package goes from the Baltal side instead, staying in Sonmarg and flying from Neelgrath helipad, one day shorter. Choose this one for the Pahalgam valley and the extra day of sightseeing.
Panchtarni is as far as any helicopter goes. From the helipad to the Holy Cave you continue on foot, or by pony or palki hired there. Before travelling, register for the yatra with the Shri Amarnathji Shrine Board, which asks for a compulsory health certificate from an authorised doctor; both take time, so arrange them before booking the dates.