Southwest Airlines has extended its booking schedule through fall 2026—and if you fly Southwest even semiregularly, this is one of the most important booking windows of the year.

Here’s why.

Fares Are Often Lowest When the Schedule First Opens

Southwest doesn’t load flights day by day like most other airlines do. It releases large chunks of its calendar at once—and when those dates first go live, prices are often among the lowest you’ll see.

That makes this prime time to book fall break trips, late-summer beach vacations, college visits, and even Thanksgiving positioning flights before prices start creeping up. Popular leisure routes—think Florida, Las Vegas, and Southern California—can be especially attractive right when the schedule opens.

Even if your plans aren’t completely locked in, Southwest’s no-change-fee policy makes booking early relatively low risk. If the price drops, you can reprice and receive the difference as a travel credit. Award tickets can be repriced too, with points redeposited if the cost falls.

Companion Pass Strategy Play

If you hold a Southwest® Companion Pass®—or plan to earn one—you can really use this to your advantage.

Booking early lets you lock in two-for-one pricing before fares climb, secure limited nonstop routes during peak periods and map out high-demand weekends before flights begin to fill. Because Southwest award pricing is tied to the cash fare, lower fares also mean fewer points required—and your companion still flies for just the cost of taxes and fees.

And with some traditionally popular destinations pricing travelers out lately, securing lower fares early can make a noticeable difference in your overall trip budget.

How To Book Smart

If you have Rapid Rewards® points, this can be a strong time to use them while fares are low.

If you don’t, you could pay with a Southwest co-branded card to earn toward Companion Pass qualification. Or you can use a flexible travel rewards card and redeem points toward airfare. Another simple strategy: book now and set a reminder to check prices periodically for drops.

This is one of those rare “book first, adjust later” scenarios where flexibility works in your favor.

Bottom Line

When Southwest Airlines opens its schedule, the advantage goes to travelers who move early.

If fall 2026 travel is even remotely on your radar, now’s the time to run a few searches and see what pops up.