After the war Oakland's traffic slumped, but airline deregulation prompted several low-fare carriers to begin flights. This increase prompted the airport to build a $16.3 million second terminal, the Lionel J. Wilson Terminal 2, with seven gates for PSA and AirCal service. In the mid-1980s, People Express Airlines provided scheduled Boeing 747 transcontinental flights from OAK to Newark. SFO Helicopter Airlines served scheduled passenger flights between SFO and the Oakland Convention Center from OAK for many years until 1985. In 1987, British Airways and Air France Concorde visited Oakland to provide supersonic two-hour flights to the Pacific halfway to Hawaii and back to Oakland. Additionally a special around-the-world trip covering 38,215 miles over a three-week tour in March 1989.