BPT (Beaumont, TX) does. The only commercial air service is an AA route to/from DFW. UA runs a shuttle bus 3x day from BPT-IAH. I booked tickets a couple times ex-BPT (back in 2013?) because UA used to price certain routes far cheaper if you originated at BPT vs taking the direct flight from IAH. Saved money and got the extra PQS to boot.