No.
Yes they did and they acquired more when they merged with Continental Airlines.
The primary users of 737's are Southwest Airlines Continental Airlines Ryanair Alaska Airlines
Boeing 757-200
United Airlines currently has 24 Boeing 747-400 in service.
Southwest Airlines currently only operate Boeing 737 airplanes. There are several different versions of this airplane though, so the seat count can vary.
Qantas are the only airline that fly the 747 400er
No, Southwest Airlines does not operate Boeing 747 aircraft. The airline primarily uses a fleet of Boeing 737 planes, which are known for their efficiency and suitability for short to medium-haul routes. The Boeing 747, a large, wide-body aircraft, is typically used by airlines for long-haul international flights and is not part of Southwest's low-cost carrier model.
Southwest Airlines does not operate Boeing 757 aircraft. Instead, the airline primarily uses Boeing 737 models for its fleet. The seating capacity of a Boeing 737 can vary, typically accommodating between 143 to 175 passengers, depending on the specific model and configuration.
In 1968 I flew into Vietnam on a Continental brand new Boeing 707. The bird with the "golden tail"
The term Boeing Business jet refers to their modified model of the Boeing 737 jet. Boeing upgraded these jets and made them bigger to accomodate more passengers and to have more interior space. Most airlines around the world either have or are currently using these jets.
All Nippolian airlines has Boeing 787-8.
Two. Both are Philippine-registered. In addition, PAL also flew two -200s leased from Republic Airlines.