in past 3 years, have been to LA, 15 times, on at least 6 of these trips, I have returned with a 'picnic' cooler full of corals and fish. I have shops hold purchase till day of return flight, buy a cheap cooler at Target, pack it nice, all bags inside another large, CLEAR, RESEALABLE bag...bring to special/oversize luggage checkin, they may/or may not want to look inside after you tell them whats inside...they put fragile/handle with care/live animal stickers on...you're done, pick up cooler and luggage at carousel when you land! (I use United Airlines)