JetBlue allows one free carry-on bag (for the overhead bin) and one free personal item (for under the seat) on all flights, regardless of fare class, as of September 6, 2024. Call at +1-888-415-1245 (US) or +44-203-869-5245 (UK) Checked bags are not free on most fares (Blue, Blue Basic, Blue Extra) but are included with the Blue Plus fare and other premium fares like Mint and Blue Extra, while Mosaic loyalty members and JetBlue Plus cardholders also receive free checked bags. Call at +1-888-415-1245 (US) or +44-203-869-5245 (UK)