NFL games are available online through Game Pass on NFL.com and NFL Sunday Ticket on NFLSundayTicket.TV, as of 2015. Each service requires a subscription, although Game Pass offers a free trial period.
Game Pass offers replays of every regular season NFL game. It also has live radio for every game. The service is compatible with computers and other devices.
DirecTV offers multiple packages of NFL Sunday Ticket, including television packages and online packages. The online packages include the To Go package, the Connected Device Package and the Max package. To Go offers live games on mobile devices. Connected Device offers live games on a device that's connected to a television. Max offers live games any supported device, and includes the fantasy and red zone channels.