JetBlue suggests you leave your bags with them before you board the flight, and they will hand over the bags to you once the flight land. However, you are supposed to carry the bags as per the limit. If you exceed the limit, the airline will charge a baggage fee for the extra baggage. You can see this article to educate yourself about the policies and the price of extra luggage.
Passengers must follow the JetBlue baggage policy to take their bags on the flight. If they do not meet the requirement or violate any policy, the airline may deny boarding to the passengers. You can read the points below to learn the baggage policies of JetBlue.
Passengers are allowed to take one bag with them on the flight. This can be your items such as a purse, laptop, or handbag.
No passengers are permitted to exceed the limit of the carry-on baggage on the flight, and if they do so, they will have to pay a fee for carrying extra luggage on the airline.
Some items are prohibited by the airline from bringing on the flight, and if any passenger brings any such items, JetBlue will not allow them to take these items with them.
The airline takes the full guarantee of your baggage, and if they miss or lose your luggage, they will compensate you.
JetBlue allows their passenger to get a carry-on bag to a limit. If they exceed the limit, the passenger will have to pay the JetBlue extra baggage fee to take extra luggage on the flight.
Blue Basic and Blue: If you have purchased this ticket, you must pay $35 for the first checked bag and $45 for the second bag.
Blue Plus: Here, the fees for the first bag are already involved in the ticket, but if you have a second bag, then $45 is chargeable to carry this bag.
Mint: The Airline will charge $35 and $45 for the first and second bag, respectively.
Jet Plus cardmember: The passengers who are members of jet plus will not have to pay any amount for the first bag but must pay $45 for the second bag