A couple of months ago I booked two car rentals for a Hawaii trip in September through Autoslash. After getting quotes--and finding them comparable to Costco Travel0--I booked through the site.
Since booking, I've been notified three times of lowered prices and automatic re-bookings at the new, lower price. So far the re-bookings have reduced the total rental costs by about $60.
June 19, 2017 at 11:12AM