The flights are to more than 20 destinations, including four "mystery" JetBlue Getaways Vacation packages to undisclosed locations.
Airline industry expert Harlan Platt says the auctions will provide some valuable "word-of-mouth" advertising for the discount carrier. He says the final bids will likely be between 85 percent and 90 percent of the flight or package's total value.
Customers can access the auctions through Jetblue.com/ebay.
