Delta Air Lines said it has installed the Aircell Gogo Wi-Fi system on nearly half of its domestic mainline fleet, making it the leading airline for in-flight connectivity.
 
Of the more than 300 airplanes Delta operates on U.S. routes, 139 are equipped with Gogo, including the entire MD-88 fleet. Delta said its MD-90 fleet will be completed by the end of May, with the remainder of the domestic fleet scheduled for completion by September.

In addition to the MD-88s, Wi-Fi is available on select Delta 757-200s and MD-90s. The service is offered in both first and economy class on a pay-per-flight basis. The cost of Wi-Fi access on a single flight ranges from $7.95-$12.95, Delta said. In June, passengers will be able to purchase month-long, unlimited use passes.