For those looking to find the cheapest flights with Southwest Airlines, here are some additional tips:

1. **Book Early**: While last-minute deals can happen, booking several weeks in advance often results in better fares.

2. **Use Flexible Dates**: Utilize Southwest’s flexible date search to see if shifting your travel dates by a day or two can save you money.

3. **Check for Sales**: Southwest frequently runs promotions, especially during off-peak travel seasons. Keep an eye on their website or sign up for their email newsletter to stay updated.

4. **Consider One-Way Flights**: Sometimes, booking two one-way tickets can be cheaper than a round-trip ticket, especially if you're flexible with your itinerary.

5. **Avoid Peak Travel Times**: If possible, steer clear of busy travel periods, such as holidays and school vacations, when prices tend to spike.

6. **Leverage Rapid Rewards**: Joining Southwest's Rapid Rewards program allows you to earn points on flights, which can lead to discounted or free flights in the future.

By combining these strategies with the best days to book, you can increase your chances of finding great deals on Southwest flights.