Southwest Airlines will no longer allow you to select your own seat, and is moving to a new assigned seat system that will likely cost you more money.

Southwest Airlines said Thursday that it plans to drop the open-boarding system it has used for more than 50 years and will start assigning passengers to seats, just like all the other big airlines.

Southwest Airlines passengers will soon have assigned seating booking options, adding to recent changes in baggage policy and safety procedures.

Southwest Airlines plans to drop its tradition of more than 50 years and start assigning seats and selling premium seating for customers who want more legroom.

When will Southwest start assigning seats? What to know after airline announces big change Southwest Airlines has been known for its unique "open boarding" model for more than 50 years.

Southwest Airlines said Thursday that it plans to drop the open-boarding system it has used for more than 50 years and will start assigning passengers to seats, just like all the other big airlines.