Here, there are three different ways you can maintain access to the Internet abroad, wherever there is cell coverage:. stepping Getting off the plane, turning on your phone, and getting service right away is the simplest option for travelers who don’t want to leave the grid. Of the three major US carriers, T-Mobile offers the least expensive way to stay connected abroad. If you have the company’s Magenta or Magenta Max plans, which cost $70 and $85 per month, respectively, you’ll have instant service upon arrival at your destination at no additional cost. The catch: Although you get unlimited data overseas, the service can feel exceptionally slow (around 2G velocity). If that proves too sluggish to efficiently power navigation and ride-sharing apps, you can get T-Mobile’s day pass starting at $5 a day, which boosts functionality for speeds similar to the state-of-the-art experience. Will give.