The April 1957 OAG shows 414 weekday fixed-wing departures from Midway: 83 American, 83 United, 56 TWA, 40 Capital, 35 North Central, 28 Delta, 27 Eastern, 22 Northwest, 19 Ozark, 11 Braniff, 5 Trans-Canada, and 5 Lake Central. Air France, Lufthansa, and REAL (of Brazil) had a few flights per week.[12] Midway was running out of room and in any case could not handle the 707 and DC-8 jets that appeared in 1959; every Chicago jet flight had to use O'Hare, which had opened to the airlines in 1955.