Midtown Skyport was a seaplane base in New York City, located at Pier 79 on the East River near the foot of 31st Street in Manhattan.

An air taxi service was also planned between the seaplane bases in Manhattan and Floyd Bennett Field in Brooklyn, which opened in 1930 as city's first municipal airport.

[4] The company had built a floating ramp for amphibians alongside the pier at the end of 31st Street—which it leased from the city—that enabled aircraft to taxi in and out of the water.

[8] Plans to use this site, which was being used as an anchorage for the New York Yacht Club, were considered by Mayor Jimmy Walker's Committee on Airports the following year.

[9] Each of the new seaplane bases on the East River had a 86-by-56-foot (26 by 17 m) floating ramp that was constructed at the Brooklyn Navy Yard using Temporary Emergency Relief Administration (TERA) funds.

[15][16] During construction of the new seaplane base at 31st Street, the project to develop the floating ramps for it and the Downtown Skyport was criticized for poor management as it was found to have cost nearly four times the original estimate.

[1][20] The following month, more than 100 mayors attending the Conference on Seaport Cities received a demonstration of the use of the seaplane ramp and turntable from the deck of the USS J. Fred Talbott while they were being taken on a tour of the harbor.

[24][25] On October 31, 1936, Keystone Airlines began providing passenger service to Philadelphia, operating between the Midtown Skyport and the Bainbridge Street Wharf on the Delaware River.

Much of the landfill was brought to the United States as ships' ballast from the rubble of the city of Bristol in England during World War II.