As United Airlines made plans to end Tokyo service from Portland, Delta Air Lines applied to begin Atlanta-Tokyo service via Portland using Lockheed L-1011 aircraft. Like United Airlines, Delta Air Lines lacked aircraft that could fly to Japan nonstop from the eastern United States; Delta Air Lines also lacked a West Coast hub at the time, and saw Portland as favorable international and domestic hub over Seattle, which was dominated by Northwest Airlines. After beginning Tokyo service in 1986, Delta Air Lines added a flight to Seoul in 1988, coinciding with the 1988 Summer Olympics; the Seoul flight was later extended to Hong Kong, Beijing, Shanghai, and Taipei. By 1994, Delta Air Lines had introduced McDonnell Douglas MD-11 aircraft, and added another transpacific flight to Nagoya and domestic flights to New York City, Anchorage, Fairbanks, and other destinations. Delta Air Lines's hub had peaked in 1998, with additional service to Osaka and Fukuoka.