Delta Skymiles Platinum AMEXEarn 70,000 miles (and 10,000 MQM’s) after you spend $3,000 in your first 3 months. An example of what 70,000 miles gets you? A free ticket to Australia! Not to mention a free checked bag and priority boarding every time you fly Delta. In addition, earn a $100 statement credit after you make a Delta purchase with your new Card within your first 3 months.