You have to go thru security and everything again when u get to airport. Example land at la guardia but connectin flight from jfk u pick yur luggage up and than run 2 jfk an go thru security an everythin again
Always ride jetblue
Whenever you have to enter a plane you have to pass through costume. Is the Law. If you change airport you have to bring your luggage. Is up to your airline the decision.
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