Originally Posted by
brenc3
First, welcome to FT
purplecake.
CX can tag your bags through to BOS. There is a recheck counter at the exit of TBIT, so no need to lug bags over to T4. Follow the signs to "connecting flights", taking a right after customs. Just drop them with the attendant on the conveyor belt.
TBIT is pretty bad at getting bags out in a timely fashion. The only thing that makes this less of an issue is that the CBP facility is equally inefficient at processing incoming pax, so much of the time, your bags are already out by the time you finish immigration. If you have Global Entry, expect to wait a while (

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Even though I have my luggage checked/tagged to BOS by CX I always take the free luggage cart at TBIT and take them over to AA myself. I bypass the re-check area. <5min walk to AA. As they are already tagged you do not need to take them to the AA counter, just take them to the TSA luggage screen at the AA upper level. That way I know AA has them. As u exit TBIT at street level you will need to take the elevator at AA to get to the check-in level if u decide to bring your luggage.