In a memo sent to employees on Wednesday, Southwest Airlines announced they will be giving vaccinated workers extra pay. The company will provide two days of bonus pay or 13 trip segments of extra pay for flight attendants and pilots. Employees must show proof of vaccination by November 15th. They will also be cutting quarantine pay protections for unvaccinated workers who get coronavirus after the November deadline.
See "Southwest Airlines to give vaccinated workers extra pay", Karl Evers-Hillstrom, The Hill, September 16, 2021