Nantucket Memorial Airport is 3 miles southeast of Nantucket town. It has year-round service to Boston, Hyannis, New Bedford and Martha's Vineyard, and seasonal services to New York. Check Cape Air for schedules. Delta, American and JetBlue also offer seasonal services to/from New York and Washington, DC.
The airport is connected by local bus to town ($2) from mid-June to early September.