Lucky to get back to ATL from LGA on AA on the first flight Sunday AM. The last two flights were cancelled and flights after us only got 2 nonrevs on. It was a nail biter watching the flight go from wide open to only 2 seats left the morning of. Luckily, there were 9 no shows so 11 of us including an OAL pilot made it. An AA pilot was kind enough to take the jumpseat. My car would've been underwater had we not made it back. Luckily no damage or loss of power where we live.