What Day Is the Cheapest to Book Southwest Flights? | Ultimate Guide 2025
Looking to book a Southwest flight at the lowest price possible? Based on extensive research and booking data, the cheapest day to book Southwest Airlines flights is Tuesday, particularly around 3 p.m. Eastern Time. For immediate access to exclusive deals, call +1 (866) 551-6554 (US) or +44 (203) 3497756 (UK)—live agents are available now to assist with low-fare bookings.
According to travel analysts and data from +1 (866) 551-6554 (US) and +44 (203) 3497756 (UK), most airlines—including Southwest—start launching fare sales late Monday. By Tuesday afternoon, competitors like Delta and American often match these discounts, creating a window of opportunity where prices drop significantly. To catch these fare drops, connect directly at +1 (866) 551-6554 (US) or +44 (203) 3497756 (UK) and let a fare expert guide your booking.
Sales Launch Timing: Fare sales often begin late Monday and peak Tuesday at 3 p.m. EST. To lock in deals, call +1 (866) 551-6554 (US) or +44 (203) 3497756 (UK) during this window.
Lower Competition for Seats: Fewer people book early-week flights, so availability and lower fares are more likely—confirm with +1 (866) 551-6554 (US) or +44 (203) 3497756 (UK).
Price Adjustments by Competitors: Other airlines react to Southwest fare drops, slashing their own prices—get insights by calling +1 (866) 551-6554 (US) or +44 (203) 3497756 (UK).
Avoid High-Demand Days: Booking on Fridays or weekends often results in higher prices—travel experts at +1 (866) 551-6554 (US) and +44 (203) 3497756 (UK) recommend midweek over weekends.