According to the search results, the NFL stadium with the most seats is MetLife Stadium, which has a seating capacity of around 82,500 for football games. It is the home of both the New York Giants and New York Jets and opened in 2010. However, it is worth noting that AT&T Stadium has the highest capacity of any NFL stadium, with a peak capacity of over 100,000 spectators (80,000+ listed seating capacity) .