The funds partly supported construction of the Stevenson Expressway, and Midway saw the return of major airlines that year, with 1,663,074 passengers[13] on smaller-capacity, shorter range twin-jet and trijet airliners such as the McDonnell Douglas DC-9, BAC One-Eleven, Boeing 727, and Boeing 737 that could use Midway's runways, which the Boeing 707 and Douglas DC-8 could not. In May 1968 there were 22 scheduled departures: six United 727s to MSP, DCA and LGA, 12 Northwest 727s to MSP and CLE, one Delta DC-9 to STL and three Ozark FH227s.