Although seating plans vary by airliner, the United Airlines seating plan for one of the most widely flown passenger aircraft, the Boeing 737-800 V2, features 16 reclining seats in first class, 18 standard seats in economy plus class and 126 standard seats in economy class, as of 2016. Airlines may choose different seating configurations within the same aircraft.
United Airlines configures its first class section in the Boeing 737-800 V2 in four rows of two seats per row on either side of the plane with a corridor separating the two sections of eight seats. There are 33 rows of six seats each that make up the economy plus and economy sections. The configuration allows for restrooms and galleys at both the back and front of the plane.
By comparison, American Airlines’ Airbus 330-300 features 28 open suites in business class and 263 standard seats in economy class. Suite seating allows for a tilted angle for the seats, giving passengers more leg room. Business class features rows of seven seats down the sides of the aircraft, with a double row of 14 seats down the middle. In economy class, there are 32 rows of seats, with pairs of seats along the sides and three to four seats down the middle section of the plane.