Upvote:5
From the CBP website regarding warrant check:
Many travelers wonder if CBP is alerted when an inbound passenger has a warrant for their arrest issued. Yes, CBP is alerted. In the air passenger environment, air carriers transmit passenger information to CBP through the Advance Passenger Information System (APIS). CBP officers also rely on the Interagency Border Inspection System (IBIS) to determine which individuals to target for secondary examination upon arrival in the United States.
So it is quite likely that you will be detained, searched, and quite possibly arrested as soon as you arrive at the border. What happens after I am not sure but it is quite likely that you will be delivered transported directly to courthouse to answer the charges from which you have skipped out.