These are general statistics across all of the airlines tracked by seats.aero. As airlines limit or simply don't return seat counts (AA), what is shown is generally undercounting. Seat counts include all cabins, using the highest seat counts available for each day on each tracked route.
Available seats by departure airport
Available seats by departure day
Not affiliated with any airline. Data is periodically refreshed and might not be up to date. 2ce70384/iad/sjc