International Growth up at IAH.

That's the good news in the following Houston Business Journal article:

Expedia Study: International Arrivals up at IAH. Matt Joyce, Houston Business Journal

Houston's George Bush Intercontinental Airport is growing as a destination for international travelers, according to an Expedia, Inc. analysis of customer data.
The Bellevue, Wash.-based online travel company found that international arrivals to IAH increased 9 percent in the first five months of 2012, compared with the first five months of 2011.

The bad news for IAH is a little further down:

Also in Texas, Dallas/Fort Worth International Airport saw 37 percent growth, and Austin-Bergstrom International Airport saw 23 percent growth.

It's important to note that this is ticket sales, and not increasing flights, that data wasn't analyzed here.  But it appears that DFW is growing their business while IAH is remaining somewhat stagnant.  Whether this was brought on by people moving their former United ticketing to American (which hubs out of Dallas) or not was not addressed.

There is a downside, to Houston, for all of this anti-UA anger, and it's going to be felt at the arrival/departure gate. Time will tell if this is the first sign of that.