Airmails of the United States

Airmails of the United States or U.S. Air Mail relates to the servicing of flown mails by the U.S. postal system within the United States, its possessions, and/or territories, marked as "Via Air Mail" (or equivalent), appropriately franked, and afforded any then existing class or sub-class of U.S. Air Mail service.

After an intermittent series of government sponsored experimental flights between 1911 and 1918, domestic U.S. Air Mail was formally established as a new class of service by the United States Post Office Department on May 15, 1918, with the inauguration of the Washington-Philadelphia-New York route for which the first of special Air Mail stamps were issued.

The exclusive transportation of flown mails by government operated aircraft came to an end in 1926 under the provisions of the "Kelly Act" which required the USPOD to transition to contracting with commercial air carriers to fly them over Contract Air Mail (CAM) routes to be established by the Department, although during the first half of 1934 the U.S. Army Air Forces temporarily took over the routes — with disastrous results — when all CAM contracts were summarily cancelled by President Franklin D. Roosevelt owing to the Air Mail Scandal. Domestic air mail became obsolete in 1975, and international air mail in 1995, as distinct extra fee services when the USPS began transporting all First Class long distance intercity mail by air on a routine basis.

During the first aerial flight in North America by balloon on January 9, 1793, from Philadelphia to Deptford, New Jersey, Jean-Pierre Blanchard carried a personal letter from George Washington to be delivered to the owner of whatever property Blanchard happened to land on, making the flight the first delivery of air mail in the United States.

John Wise piloted an unofficial balloon post flight that took place on July 17, 1859, from St. Louis, United States, to Henderson, New York, a distance of 1,290 km on which he carried a mailbag entrusted to him by the American Express Company. One month later, on August 17, Wise flew from Lafayette, Indiana, to Crawfordsville, Indiana, and carried 123 letters and 23 circulars on board that had been collected by the postmaster Thomas Wood and endorsed "PREPAID" but only one of these historic postal covers was discovered in 1957. In 1959 the United States Postal Service issued a 7 cent stamp (C-54) commemorating Wise's flight in the Jupiter.Balloon mail was also carried on an 1877 flight in Nashville, Tennessee.

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