I can't imaginge checking luggage at JFK 30 minutes prior to departure and expecting it to make the plane, no matter who you're flying on. So the next heads-up seems like a prudent move on Delta's part to ensure your luggage shows up with you.

Delta Air Lines domestic customers originating at JFK are required to check their baggage a minimum of 45 minutes prior to departure time. Effective Oct. 15, the change applies to customers traveling on Delta, Delta Connection^® carrier and codeshare flights operated by Delta.ew York's JFK.

Domestic customers not checking bags may continue to check in with a Delta agent or via a self-service kiosk 30 minutes prior to departure. Kiosks will automatically notify customers of the baggage policy change at check in if they have missed the 45-minute check-in window. The change at JFK matches Delta’s policy at other large airports in Atlanta, Los Angeles, Las Vegas, Orlando and Denver. Customers traveling internationally are still required to check their bags 60 minutes prior to scheduled departure.

So show up a little earlier, check in the foot locker at least 45 minutes before departure and plan for a luggage reunion at your final destination.