Pilots at Southwest Airlines will get about a 50% pay raise over a five-year period in their new contract, according to the details shared by their union Wednesday.

The Southwest Airlines Pilots Association (SWAPA), which represents more than 10,000 pilots at the Dallas-based carrier, also said its board has voted to send the deal to members for a ratification vote.

On Tuesday, the union said it has reached an agreement with the company for a $12 billion contract deal.