I plan on taking frozen walleye (fish() in a cooler to Florida. Is this permissible and if yes, is it check in or carry on baggage? Do I need to go through a special procedure to take this fish? My airline is Spirit

Put that fish in your luggage mixed with some dry ice and hold your breath that you're not caught, bit it's good to ask TSA.

Good luck!

The last few answers are spot on - check, and check before you go to the airport with your walleye!

That is a question for the airline to answer.

Hello, I'm sorry I don't know the answer to that question. I would check with TSA or your airline. Enjoy Florida

You will have to check w/TSA

I recommend checking with TSA

If it has liquids you'll need to check it in