Cheaper than what???

Maglev from PUD to Longyang Road MTR is:
40 Yuan one-way with airline ticket stub
50 Yuan one-way without airline stub
100 Yuan for a VIP one-way.

From Longyang Rd, take the #2 metro line (green) to Jing'An Temple (4 yuan).
Exit number 5 puts you on the NW corner of the park...a 2 minute walk to the Hilton.
You can also take the Metro (#2) from PUD to Jing'An for a whopping 7 yuan...cheaper but much slower.

Maglev runs every 15 minutes from 7:00am until 7:00pm and then every 20 minutes after that until 9:00pm (give or take.)