The service, to be announced Tuesday, will be available on some planes as soon as next month, starting with Delta's MD-88 jets. By the end of the year, Delta will have 75 planes outfitted; by next summer its entire 330-plane domestic fleet will be online. While several airlines have been testing airborne wireless Internet connections, Delta is the first major carrier to commit to installing Wi-Fi on every airplane.
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http://online.wsj.com/article/SB121788491128311271.html?mod=Travel79_1