I tried using that site when I was going to visit my sister to help her with a new baby

We did not book ahead of time because we did not know when the baby was going to be born. It turned out that I was not able to beat the Southwest price even if I took a flight in the middle of the night.

That was several years ago so I don’t know if it would be the same. Since then, I have only tried looking for hotels and rental cars and I can do better by just going directly to the website and using a AAA discount.