It's never too late to get a great travel deal! Here are three of the best last-minute travel deals we found on the internet this week: 1. Europe for millennials (iStock) Contiki, a tour operator for 18- to 35-year-olds, is taking 25 percent off its 18-day "Road to Athens" package. The tour, which begins in London on April 30 and ends in the Greek capital, starts at $2,757.