Basic economy tickets are ineligible for refunds and don't include seat selection. Economy Plus features standard economy seats with extra legroom. Standard economy includes seat selection and a free carry-on. All three economy classes charge for checked bags on domestic flights.

Basic Economy is not a different seating class, but rather a more restrictive "fare type" within the standard Economy cabin. In 2026, the primary difference lies in flexibility and "frills." While you sit in the exact same seat as a standard Economy passenger, a Basic Economy ticket typically does not allow for seat selection (you are assigned a seat at check-in), is non-changeable and non-refundable, and usually places you in the final boarding group. Some airlines, like United, even restrict Basic Economy passengers from using the overhead bins, limiting them to a single "personal item" that fits under the seat. Standard Economy, by contrast, usually includes a full-size carry-on, allows for earlier seat selection (sometimes for a fee), and provides more frequent flyer mile accrual. Essentially, Basic Economy is designed for price-sensitive travelers who "travel light" and have firm plans, while standard Economy offers the flexibility and amenities that most traditional travelers expect from a legacy carrier.