Delta Air Lines is testing free inflight Wi-Fi. JetBlue Airways already provides it. If an official Delta program emerged, that would pressure other carriers. It could appease the many travelers who feel cheated when they pay for unreliable or slow connections.
Even if all airlines wanted to go in that direction, though, it would take a while to work through contractual obligations with their providers. Ensuring reliability at greater scale presents a big challenge.
As it is, pricing for inflight Wi-Fi — much . . .