Hyannis Air Service, Inc., operating as Cape Air, is an airline headquartered at Barnstable Municipal Airport in Barnstable, Massachusetts, United States. It operates scheduled passenger services in the Northeast, Florida, the Caribbean, Mid-Atlantic States, Midwest, and Micronesia. Flights in Micronesia are operated as United Express flights through a code share partnership with United Airlines. Flights between Hyannis and Nantucket, Massachusetts, are operated under the Nantucket Airlines brand, also operated by Hyannis Air Service, Inc. read more