New Orleans Louis Armstrong airport is kind small. So it may not be a good idea to spend the night there, although I do not think safety is an issue at most airports. You do have some other options.
1. They have bus servicing airport but the latest one leaves at around 9. So you can try to change your flight or stand by for an earlier flight.
1. They have bus servicing airport but the latest one leaves at around 9. So you can try to change your flight or stand by for an earlier flight.
http://www.jeffersontransit.org/schedules/E2Airport-Map.htm
2. Airport shuttle. It will run you $15 each way but I believe the service is available after 10.
http://www.airportshuttleneworleans.com/services-rates.html
3. Taxicab costs about $30.