Terminal 3 and 4 are only connected by AirTran in the unsecured area ?? Please help i am really confused ..

Sorry, my bad, I was thinking 2 and 3. There's a secured shuttle from terminal 4 back to 2 and 3. I THINK it's out of gate B23 in terminal 4. I can't recall the frequency but it should be sufficient to get you there. It would be preferable to going outside and coming back through security.

https:/…new-york-jfk.html

WWNYC--nice map! I was just going to explain to Kevin, but a picture says 1000 words. Wandering through T3 is a pain--I'm always tempted to pay for a ride...

I am trying to remember which airline in Terminal 4 provides a shuttle bus to passengers making connecting flights--and staying inside security ( airside) all the time. Post on NYC forums. Some one there will probably know. Otherwise, I would consider making the later flight--you can always hang out-but if you miss your flight, you will only be put on the later flight if there is room. BTW when is this trip--winter??

RDG--this is DL, as OP is flying with them. Airside bus is Gate B23, T4 to the often despised T3 @ Gate 11. Map shows route for DL pax airside.

OALs:

http://www.jfkiat.com/

I would not take this connection if I had any other choice. That shuttle to/from Terminal 4 is a fairly long trip, more than you would think!

I recently left the Sky Club in Terminal 3 with just over an hour before flight time (leaving from Terminal 4) and by the time I waited for the shuttle, and enjoyed the wandering path the shuttle takes between the terminals, I arrived at my gate just about 20 minutes before takeoff.

Think it would be ok, try it.

Walk fast, don't fool around.