No More Free Checked Bags on JetBlue. As of June 30, the airline introduced new fare options when booking tickets online, which include charges to checked bags, unless passengers pay for its premium fares. Passengers purchasing Blue fare—JetBlue’s base fare—will now be charged $20 for the first checked bag when purchased during web check-in or at a kiosk, or $25 at the check-in counter, and a $35 fee for a second checked bag.