About 9+ hours
38 minutes
Amtrak is not a good option since you will have to go up to Washington, DC and then catch another train to come back down to New Orleans.
Galveston Island does not have Amtrak service. The best way to go is to take an Acela Express from Providence to New York Penn Station. At Penn Station, transfer to the Crescent to New Orleans. Drive from New Orleans to Galveston Island. From Providence to New Orleans will take 35 hours.
four hour
Amtrak was founded in 1991.
47 hr, 53 min is the SHORTEST time as per AMTRAK's schedules.
MapQuest estimates the driving time as 5 hours and 38 minutes.
Google Maps estimates the driving time as 5 hours and 51 minutes.
Depending on your starting/ending points and how long you stop/how fast you drive - I make the trip from South Park, Houston to Algiers, New Orleans in roughly 5 1/2 hours with one stop at the state line.
The driving distance is 348 miles per Map Quest. The driving time to New Orleans per Map Quest is 5 hours and 16 minutes.
It is 13 hours
Long term parking for the Amtrak Ann Arbor station is on the northwest side of the Broadway bridge. The Amtrak station is on one side of the tracks (south), the long term parking lot is on the other (north). To get to the parking lot, you have to drive over the bridge.