Use This Promo Code to Save up to 40% on Southwest Rapid Rewards Bookings

Southwest Airlines is offering a new promo code for up to 40% off the base fare of one-way or round-trip bookings (in all fare classes) made with cash or Rapid Rewards points. This offer is available for new reservations made by June 11, 2026, for travel across the majority of Southwest's entire network. Here's the promo code to use.