Methods and apparatus for facilitating data throughput improvements in interconnect fabrics employing point-to-point links using dynamically selectable routing. Initiators and targets are operatively coupled to first and second fabrics. The first and second fabrics include multiple point-to-point internal links and are communicatively coupled to one another via multiple fabric-to-fabric links, including first and second links from the first fabric to the second fabric. During operations, traffic on the first fabric-to-fabric link is detected to determine if it is busy, and depending on the determination, data transfers from an initiator coupled to the first fabric destined for a target coupled to the second fabric are selectively routed via either the first or second fabric-to-fabric links.