I am flying to LAX from JFK tomorrow morning (December 22nd). There are 5 Mint seats available on my flight and I currently have a regular seat. I have heard stories of people upgrading their seats day of for a few hundred dollars. I am curious if anyone has had success on that route and what is the best way to get one?

Thank you so much, and happy holidays!!

UPDATE:

I took the advice of many (thank you!!) I waited around about an hour before boarding. Once someone was at the gate I waited about 5 minutes for them to get settled and then went up. I was able to snag a Mint seat 1D for $450!

First time upgrading, so not sure if it’s considered a good deal but I sure am happy! Thank you all 🙏🏼