I just had one last night. IAH, landed on Runway 8L. Taxied to the far eastern taxiway, came down south, back west passing all the CO's hangers, left to towards gate at Terminal E.

I measured it on Google Map just now, and it's exactly 4 miles (could be even longer if we were using Terminal B or parts of C).

Landed 7:58p, arrived at gate 8:15p. And there was no wait except stopping for about 1 minute before turning south towards E.