Hot Ticket for the World’s Biggest Passenger Jet. In coach, passengers find the same cramped quarters of most other jets on the super-jumbo. Seating is 10 across on the lower deck; eight abreast on the narrower upper deck. Air France, with 538 total seats, opted for a slightly wider coach seat than other A380 operators, but loses some space in the aisles, which are a skinny 17-inches wide in the lower-deck coach cabin. “Seat pitch”—the amount of space allocated to each row of seats, including leg room—is only 31 to 32 inches in the A380 coach cabins, consistent with some of the tightest coach seating at airlines, and less than you get on Southwest Airlines.