Iberia (Madrid) this week is celebrating the 60th anniversary of its first flight from Madrid to New York and return on August 3, 1954 on a 74-seat Lockheed 1049E Super Constellation. Five days later, on August 8, 1954, Iberia started regular service with three roundtrips a week between the two cities.
Today, 60 years later, Iberia serves the route with 17 roundtrips a week mainly flown with Airbus A340-600s and A330-300s.
Iberia: 
Video: Iberia.