Hey can I bump this thread? Taking a similar PUJ flight through Baltimore, but I am going to ISP. I have never taken an international flight with a domestic connection before and was hoping somebody can help with the process.

ISP-BWI-PUJ is an early 605am flight. The layover is only one hour, which may be tight. Do I have to go through any customs or stuff heading down or bag check in BWI? The bags would transfer planes right? Is there a good chance the gates will be near each other? One hour is a tight connection. I am confident the ISP flight will leave on time, it usually does. I just want to make sure i can get to my plane at BWI quickly, and also get a decent seat as we are all A-List.

For PUJ-BWI-ISP, I was reading the posts above. Is the process PUJ-BWI, go through customs, get bags and then re-check for BWI-ISP? My layover at BWI is 3 hours and the BWI flight doesn't take off until 7pm so being a late flight there is a good enough chance that flight will be delayed anyways. I would think that is plenty time to make this connection? We are thinking of upgrading to Global Relay, but that would be $120x3 travelers. Not sure if it's worth it for this airport. Worst case scenario we either stay at BWI one night or we rent a car to drive from BWI to ISP (4 hour drive - doable).

TIA.