Originally Posted by
phuket_j
Thank you. So on all these domestic to international transfers, there is no additional security screening? I am trying to avoid this and I know that at ORD this is done so via the transfer bus. One time I transferred through ORD and the bus transfer service was not availalble, so I had to go through screening and I almost missed the flight to DOH. I am trying to avoid double screening.
On a tangent, does anyone know of a website where you can look up past flights/routes for pax load?
I'm unfamiliar with MIA, but the rest of your other options should allow for airside transfers. As you probably already know, there is no (formal) exit immigration when departing the US as well.