This aircraft is outfitted 262 seats, 24 of which are classified as 'Plus' seats - which offer 7 inches of additional pitch. These seats are located in the first four rows of the aircraft. Passengers seated in Plus will get advance boarding, first access to overhead luggage bins and complimentary food and beverages (selections vary). In addition, the Plus fare offers passengers priority screening (at available airports) and the ability to change or cancel flights for no fee.
The ER is extended range, meaning it has increased fuel and therefore range capabilities and finally, the W indicates that these aircraft are outfitted with winglets which improve the fuel efficiency of the aircraft