In July I am flying down to Florida and spend a week offshore fishing with a high school friend, I'd like to bring back some of the catch. My question is, what's the best way to do this?

If the fillets are frozen, can I put them in one of those Engel backpack style coolers

https://www.engelcoolers.com/coolers...ckpack-coolers

that don't leak and just carry it on the plane?

What have some of you done?