United adds 10 new international destinations in massive 13-route global expansion

United Airlines is going bigger than ever with its international route network in 2027.The Chicago-based carrier on Tuesday revealed its highly anticipated list of new destinations for next summer.If you're a traveler looking for someplace novel and less touristy to explore, there's a ton of new options to consider.United's annual "route drop" includes America's first nonstop flights to Slovenia and Luxembourg, in Europe. There's an all-new destination in Japan, along with flights to islands in Spain, Portugal and Italy.Plus, United is launching service to two French cities you can't currently reach without a layover.Valencia, Spain. SERGIO FORMOSO/GETTY IMAGESIn all it's 10 new international destinations and 13 new routes for United in 2027, the largest route announcement of its kind in the airline's history.The reveal of new summer routes — which has become an annual spectacle at United — builds on what's already been an ambitious global push in recent years, marked by flights to places like Greenland, Mongolia and Palermo."We've opened up more of the world to our customers," chief network planner Patrick Quayle said on a call with reporters. "Next summer, we'll give them more op...