In the world of air travel, Southwest Airlines is the best option for vacationing on a budget. Offering low ticket fares, free choice seating, and friendly air crews, the Texas-based airline has found its way into the hearts of frequent flyers nationwide. While the airline's prices are already low, there are still additional ways to save money while traveling Southwest . . . and we've done all the digging for you. When it comes to air travel hacks, look no further.