Buying your ticket on a Tuesday doesn't mean you have to fly on a Tuesday, though midweek travel is often cheaper. The most budget-friendly days to fly are:

: Book 3 to 4 months ahead to avoid sharp price hikes.

: To keep your funds as a flight credit, you must cancel at least 10 minutes before your scheduled departure. Fare Information and Rules | Southwest Airlines

: This is the most effective strategy for Southwest. Since the airline has no change fees , you should book as soon as you see a fair price. If the price drops later, you can "change" your flight to the same one at the lower rate and receive the difference as a future flight credit .

: Often cheaper than Friday or Sunday, which are peak travel days for business and weekend travelers. Important Fare Rules to Know

: Use the Southwest Low Fare Calendar to view the cheapest dates across an entire month. Booking Window : Domestic : Aim for 3 to 8 weeks in advance.

: Mark your calendar for Southwest's biggest annual sales, which typically occur in early June (Summer Sale) and October (Fall/Winter Sale). Best Days to Actually Fly