Priceline takes an extra 10% offExpress Deals Metro hotel bookings, which are already discounted by up to 55% off, via coupon code "BIGCITY6" as provided by ShermansTravel. Combined, it ties our June mention as the second-best percent-off discount we've seen from Priceline this year. (We saw up to 65% off with an extra 5% off in May.) Additional fees and restrictions may apply. Current Express Deals cities include New York City, Las Vegas, Orlando, and Washington D.C. Book by September 16.