Atlantique
The airport shuttle is EUR 10 for 21 minutes; the same network's EUR 1.80 ticket does it by bus 38 and tram 3 in about 40, and nothing leaves the airport between midnight and 05:15.
Every option priced for your party, with where each one leaves you. Straight to: Gare de Nantes. Going the other way? Nantes to Atlantique airport.
