Who flew the first flight across the United States?

The first transcontinental flight across the United States was made by Calbraith Perry Rodgers in an attempt to win the Hearst prize offered by publisher William Randolph Hearst. Hearst offered a $US 50,000 prize to the first aviator to fly coast to coast, in either direction, in less than 30 days from start to finish. Previous attempts by James J. Ward and Henry Atwood had been unsuccessful.

Rodgers persuaded J. Ogden Armour, of Armour and Company, to sponsor the flight, and in return he named the plane after Armour's grape soft drink "Vin Fiz". Rodgers left from Sheepshead Bay, New York, on September 17, 1911, at 4:30 pm, carrying the first transcontinental mail pouch. He crossed the Rocky Mountains on November 5, 1911, and landed at Tournament Park in Pasadena, California, at 4:04 pm, in front of a crowd of 20,000 people. He had missed the prize deadline by 19 days. He was accompanied on the ground by a support crew that repaired and rebuilt the plane after each crash landing. The trip required 70 stops.

On December 10, 1911, he flew to Long Beach, California, and symbolically taxied his plane into the Pacific Ocean.