Originally Posted by wahooflyer
When I was waiting for the Airport Fast Park shuttle at BWI recently, I saw the shuttles for the new "EconoPark" private lot go by.
EconoPark is farther from the terminal than even Airport Fast Park's Blue Lot, but the price is right: only $4.75 per day with Internet coupon. I haven't used EconoPark yet, however, so I don't know how their service compares to Fast Park.
Here's the link:
http://www.econoparkexpress.com/onlinecoupon.html
It looks to me like you get $1 off per day of the $4.75 price. Plus you can earn a free day every 5 days. Of course this will probably only last until they start filling up the lot a few times.