The Federal Aviation Administration would be required to set new minimum requirements for seats on airplanes under legislation to be considered in the House this week, possibly giving passengers a break from ever-shrinking legroom and cramped quarters. The regulation of seat width and legroom is part of a five-year extension of federal aviation programs announced early Saturday by Republican and Democratic leaders of the House and Senate committees that oversee the nation’s air travel. Congress faces a Sept. 30 deadline to keep FAA programs running. The Senate will also need to take up the bill this week or both chambers...