Are there any known discount & promo code for Sterling Pacific Aluminum Travel Cases & luggage? Right now, you can get a $300 discount on SterlingPacific.com by using the discount code 300SUMMER. The discount can be redeemed on SterlingPacific.com. This reduces the price of the 35L Cabin Travel Case from $1,495 to $1,195, and the price of the 80L Check-In Travel Case from $1,995 to $1,695.