The Nook Miles Ticket is a reward obtained from the Nook Stop for 2,000 Miles. It allows the player to visit other deserted islands on mystery tours. The islands provide excellent sources of crafting materials, opportunities to obtain new and unique flora, encounters with far flung villagers who can be asked back to the player's island, and a weather condition which may be different from that back home.
At least two free Nook Miles Tickets can be obtained. One is given by Tom Nook as a reward for upgrading from a tent to a house, and is held by Orville at the airport. Another is sent by mail as compensation for Resident Services being inaccessible for a day after it is upgraded from a tent to a building.