On March 28, 2005, ATA shut down its commuter airline service, ATA Connection operated by Chicago Express Airlines via a codeshare agreement, and later sold the assets to a private buyer. ATA Connection had initially operated British Aerospace Jetstream 31 turboprops which were then replaced with Saab 340B turboprops and was providing passenger feed for ATA at Chicago Midway Airport via a code sharing agreement. In attempt to reduce operating costs, the airline also downsized its fleet by returning twenty Boeing 737-800 and eight Boeing 757-300 aircraft, along with numerous Boeing 757-200 aircraft. The eight 757-300 airframes were subsequently refurbished by Boeing, the lessor, and then leased to Continental Airlines.