Read more at CNBC: The future of in-flight Wi-Fi
"Passengers are expecting more and more capacity, more and more bandwidth, just like they experience on the ground," said Steve Nolan, spokesman for Gogo.
JetBlue best for wi-fly
Of course, while Virgin's 100 percent Wi-Fi coverage is impressive, the airline is tinier than the rest with only about 50 aircraft. Delta, which has more than 5,000 flights scheduled for the day tested, may be the most impressive overall with 80 percent coverage.
But most of the airlines are offering speeds that wouldn't satisfy today's user. Even Southwest, which uses a newer satellite system, doesn't offer high speeds — perhaps because the bandwidth isn't worth the cost.
For the fastest internet, a traveler should go with United or JetBlue. JetBlue, one of the last major American airlines to add Wi-Fi to its flights, uses satellite technology that can stream video, and it recently made a deal with Amazon for content.
United, which is the unique position of having three different internet providers, has the overall lowest chance of providing internet to our domestic traveler. The airline was slow out of the gate in adopting Wi-Fi, but it has focused on outfitting its entire fleet in recent months and has seen the most growth overall.
The United States leads the world in on-board Wi-Fi. That's because the country has a large contiguous landmass—perfect for the early ground-to-air technology offered by Gogo's 250 towers.