Southwest Airlines: up to 40% off base fares on select flights

Expired No code needed

EXPIRED. Fare sale with no code needed; the booking window printed ‘Book by 10/8’ has closed.

• Ends: Ended Oct 8, 2026
• Source: Southwest Flight Deals and Offers page
• Last checked: Oct 11, 2026

All offers: Southwest Airlines deals

Full guide: Southwest Airlines Coupon Codes: Why There’s Rarely a Public Code, Companion Pass, and the New Fare Rules That Actually Save Money