Southwest Airlines has raised its revenue forecast for the third quarter of 2024, projecting an increase of 2-3% year-over-year in revenue per available seat miles (RASM). The airline also announced a $2.5 billion share buyback plan. This positive outlook has led to a surge in Southwest Airlines' stock, which saw a pre-market increase of 5.9%. The company has affirmed its full-year 2024 guidance, with available seat miles (ASMs) expected to rise by 4% year-over-year and cost per available seat mile excluding fuel (CASM-X) also projected to increase. The summer revenue forecast was highlighted by CNBC.