Vueling's Airbus A321 seats 220 passengers in a single Economy class configuration. Vueling does offer seats that feature added comfort for those who are willing to pay an additional fee.
XL Seats in the Exit Rows (12 and 28) provide passengers with extra legroom and are available for an additional 10 euros.
Seats in the first row of the plane are 'Excellence' seats that can be reserved for an added fee.
Priority, located behind the Excellence Seats, allow for a quicker exit but come at a cost of an extra 4 euros on domestic flights and 5 euros on international flights.
Basic Seats cost 2 euros on domestic flights and 3 euros on international flights; allowing you to choose from the remainder of available seats.