Effective October 22, 2014, it has not been (legally) possible to enter the US through any other airport if your passport has a stamp from Liberia, Sierra Leone or Guinea within the past 21 days. Trying to circumvent Customs, Border Patrol, and Immigration would not seem advisable. It is likely that a health care worker flying into Austin, TX was routed through one of the 5 approved airports before flying on to Austin. She would have been quietly screened and, if asymptomatic, allowed to complete her journey. She would then be subject to whatever arrangements were made between the arrival state and Texas. http://www.dhs.gov/news/2014/10/21/...-restrictions-and-protective-measures-prevent Today, I am announcing that all passengers arriving in the United States whose travel originates in Liberia, Sierra Leone or Guinea will be required to fly into one of the five airports that have the enhanced screening and additional resources in place. We are working closely with the airlines to implement these restrictions with minimal travel disruption. If not already handled by the airlines, the few impacted travelers should contact the airlines for rebooking, as needed. We currently have in place measures to identify and screen anyone at all land, sea and air ports of entry into the United States who we have reason to believe has been present in Liberia, Sierra Leone or Guinea in the preceding 21 days ETA http://www.statesman.com/news/news/nurse-quarantines-herself-after-return-from-work-w/nhtt2/ Airport officials said they were not told that the nurse was on a flight to Austin and do not know when and from what connecting flight she arrived, said spokesman Jason Zielinski. Zielinski said that the Austin airport does not screen for Ebola because screening is already mandated at five international airports in the U.S. that receives flights from West Africa.