Southwest Airlines America250 The Go Fourth Sale One-Way Airfares

How to Get This Deal

• Book by July 2, 2026.
• Travel dates vary by specific routes, with general availability from July 21, 2026, through December 16, 2026.
• A 21-day advance purchase is required.
• Fares are valid for Tuesdays, Wednesdays, and Saturdays for domestic travel, with specific day variations for Hawaii, Anchorage, St. Thomas, and Puerto Rico routes.

Important Exclusions

• This offer is not valid on all dates; blackout dates apply and are detailed in the terms.
• Available for one-way Basic fares only.
• Seats, days, and markets are limited.