METRO's Airport direct offers transportation from downtown Houston to George Bush international airport for USD 4.50 one way.

麦德龙的机场直接提供运输，从休斯顿市中心乔治布什国际机场，单程4.50美元。

youdao

The congresswoman arrived at Houston Hobby International Airport shortly after 1 p.m. and was flown in a helicopter to Memorial Hermann.

CNN: Giffords arrives in Houston

It helps that domestic discount airlines have increased their service to international hubs, including New York's Kennedy International Airport, San Francisco, Los Angeles, Chicago, Atlanta, Dallas, Houston, Philadelphia and Washington.

WSJ: A Trick for Cheaper Flights Hiding in Plain Sight