Southwest Airlines Community

So, I just purchased a cooler to use as a carry-on so we will have it while on vacation. I won't be using it as a cooler for the flight, just used to carry headphones, phone chargers, beach towel, etc.  I realize it states 10 x 16 x 24 inches, but my question is, I noticed mine is 10 1/2 x  13 x 16. Do you think that 1/2" will matter? ... View more

I’m looking at using our soft side back pack cooler as a carry on so we’ll have it while on vacation in Florida. Only planning on packing a few changes of clothes or towels in it. Size wise, it’s smaller than then the diamension listed for carry on so we are good there. Question 1: Are you permitted to use a cooler for a carry on? Question 2: If we want to bring frozen fish back, can we and can it still be a carry on or does it have to be checked luggage? ... View more