If you have a very early morning return flight from El Paso, you might want to return to El Paso the previous night and spend the night in a hotel in El Paso close to the airport. A nice one with reasonable rates and very close to the El Paso airport is Hampton Inn and Suites of El Paso (Ph: +1 915-771-6644; Fax +1 915-771-6368). It has a free 24 hour shuttle to the airport. Cost: $60 + tax.