Only 31% of domestic flights have Wi-Fi, study finds

A new study by the flight rating website Routehappy.com found that 31% of all domestic flights offered wireless access as of Sept. 17.

Virgin America and AirTran Airways offer wireless Internet access on 100% of their flights. Among larger carriers, Delta has Internet on about 65% of its flights, while Southwest offers it on 37% of its flights. On the other end of the scale are airlines such as American (22% of its flights), US Airways (8%) and United (0.5%).