30% Off Southwest Airlines Base Fares Promo Code: Save with DREAMBIG
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Updated March 25, 2026
Southwest Airlines is offering an amazing deal on base fares with their 30% Off Promo Code. Use the promo code DREAMBIG to get this incredible discount. This limited-time offer applies to qualifying one-way or round-trip Basic and Choice fares booked on Southwest.com or swabiz.com. The discount is applied to base fares before taxes and fees and is valid for continental U.S. travel on Mondays through Thursdays. Savings will appear as a strike-through on eligible fares during booking.
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