I got this delta promotion email 2 days ago, but did not think it’s a great promotion until I found this 2 days Budget rental deal.
you need to register this 50% bonus promotion AND earn 50% after your third transaction. If you are platinum member with Starwood, you can transfer 1 points to 1 Delta miles, that will count as one transaction.
Then this budget deal, earn 5K bonus miles for 2 days or more at participanting US or Canada Airport Location from Feb 8th- March 31st Use coupon code MUAZ015.
The cheapest price I found at my local airport budget with Coscto BCD W852800 is $58 for 2 days weekend all in. 2 rentals will cost $116 and earn 10,000 miles + 50% bonus=15,300 miles. $1 for 131 miles.
Not a bad Deal!!