Southwest offers up to 40% off base fares with promo code BUZZER for bookings March 23-26, 2026 and travel April 13-June 11, 2026.
Southwest is offering up to 40% off base fares with promo code BUZZER. Book between March 23-26, 2026 for travel April 13-June 11, 2026. The discount applies to continental U.S. and interisland Hawaii flights on Basic and Choice fares.
Continental U.S.:
Interisland Hawaii:
General Restrictions:
Southwest sales typically offer solid value for domestic travel, especially to vacation destinations. The 40% off headline is on base fares, so your actual savings will be lower once taxes and fees are added.
For a typical $300 base fare route, you'd save about $120 before taxes — bringing the total to around $200-220 after fees. That's competitive with budget carriers but includes Southwest's perks: two free bags, no change fees, and Companion Pass qualification. If you'd rather pay with a card that earns cash back on the purchase instead of chasing airline perks, our best cashback credit cards roundup covers the top options.
The 4-day booking window is tight, so if you've been eyeing a summer trip, act fast. The travel period through mid-June covers peak vacation season before summer premiums kick in. Stacking a cash-back portal on top of a promo code can trim the cost further. Our Rakuten credit card stacking guide walks through how that works.