- Southwest Airlines makes flying easier and more affordable with its helpful tool, the Southwest Lowfare Calendar. This service is perfect for travelers who want to find the lowest available fares without the stress of guessing when to book. Whether you're planning a vacation, a business trip, or a family visit, this calendar shows you the cheapest days to fly, making it simple to save money. All you have to do is enter your departure and destination cities. The calendar then highlights the lowest fares for each day of the month. It’s especially helpful for people with flexible schedules who want to stretch their travel budget. Southwest works for both one-way and round-trip flights, and you can even filter options by fare type, such as Wanna Get Away or Anytime fares. Besides helping travelers find cheap tickets, Southwest Airlines also offers excellent customer service, free checked bags, and no change fees. This makes them a favorite among budget-conscious flyers who still want a smooth and friendly flying experience.