When Paulhan made a barnstorming tour of the United States in 1910, Masson went with him.
The two of them were advertised as appearing at an air meet in Boston on 19 August 1910.
At Garden City, New York, Masson successfully test-hopped a biplane built by aviation pioneer E. Lilian Todd in the latter part of 1910.
With Paulhan's help, Masson continued to accumulate both solo and dual flight time even though too poor to own his own airplane.

In January 1911, he set out to simultaneously be the first aviator to deliver newspapers by air and to set a world's nonstop distance record in the process.
The projected hour and 45-minute flight was planned to carry the Los Angeles Times to San Bernardino, with an en route flyover of Pomona.
On 7 January 1911, Masson took off from Los Angeles in the aircraft Pegasus at 0700 hours.
After a navigational error of 180 degrees, high winds, and an eventful forced landing, he finally arrived at San Bernardino at 1240; his actual flight time was about 80 minutes.
Also in January 1911, Masson won a prize for amateur pilots at Tanforan race track in San Francisco, California.
 
He continued to fly in California, including a flight over Santa Barbara and an exhibition at Watsonville for May Day.
He then relocated to Hawaii.

On 3 June, Masson arrived in Honolulu accompanied by Clarence H. Walker and the latter's bride and Curtiss biplane.
Walker staged an exhibition on 11 June that lost money for its promoter, although the pilot received his contracted fee of $1,250.
On 16 June, Masson's two monoplanes arrived on the ship Sierra.
At 0611 hours, 18 June 1911, Masson took off on the first of ten promised flights, from Leilehua to Kapiolani Park.
As he had promised, he flew over Schofield Barracks to let the army officers see him.
The return flight from Kapiolani Park at 1330 hours did not go smoothly.
Even after servicing, Masson's new and untested plane did not depart, angering a crowd of spectators.
Invidious comparison to an earlier barnstormer, J. C. "Bud" Mars, was made; however, Masson was saved from the perturbed mob by local police and soldiers.
Four days later, the French pilot crashed that same plane from 100 feet altitude, destroying the plane but sparing him injury.

In October 1911, Masson wowed Canadians in Alberta with his exhibition of flying despite a paucity of aviation gasoline.
After several foiled attempts, on 20 October, he finally succeeded in flying over Victoria Park, and after buzzing several grazing horses to frighten them from a field, landed to greet a crowd of spectators.
Towards the end of October, Masson planned a Canadian record distance flight following the railroad from Edmonton to Calgary.
A special train full of paying spectators had paid $20 each to accompany Masson's epic flight.
After several days of cold windy snowy weather, Masson took off, only to have his fuel tank break its mountings and drop on his head.
The dazed aviator managed to land safely.

On 18 and 19 May 1912, Masson appeared at the fairgrounds at Lyons, Iowa as a member of the Ivan R. Gates flying circus.

By January 1913, he could qualify for Aero Club of America Certificate No.
202 at the Glenn L. Martin Flying School.
When Paulhan made a barnstorming tour of the United States in 1910, Masson went with him. The two of them were advertised as appearing at an air meet in Boston on 19 August 1910. At Garden City, New York, Masson successfully test-hopped a biplane built by aviation pioneer E. Lilian Todd in the latter part of 1910. With Paulhan's help, Masson continued to accumulate both solo and dual flight time even though too poor to own his own airplane. 
In January 1911, he set out to simultaneously be the first aviator to deliver newspapers by air and to set a world's nonstop distance record in the process. The projected hour and 45-minute flight was planned to carry the Los Angeles Times to San Bernardino, with an en route flyover of Pomona. On 7 January 1911, Masson took off from Los Angeles in the aircraft Pegasus at 0700 hours. After a navigational error of 180 degrees, high winds, and an eventful forced landing, he finally arrived at San Bernardino at 1240; his actual flight time was about 80 minutes. Also in January 1911, Masson won a prize for amateur pilots at Tanforan race track in San Francisco, California.  
He continued to fly in California, including a flight over Santa Barbara and an exhibition at Watsonville for May Day. He then relocated to Hawaii.
On 3 June, Masson arrived in Honolulu accompanied by Clarence H. Walker and the latter's bride and Curtiss biplane. Walker staged an exhibition on 11 June that lost money for its promoter, although the pilot received his contracted fee of $1,250. On 16 June, Masson's two monoplanes arrived on the ship Sierra. At 0611 hours, 18 June 1911, Masson took off on the first of ten promised flights, from Leilehua to Kapiolani Park. As he had promised, he flew over Schofield Barracks to let the army officers see him. The return flight from Kapiolani Park at 1330 hours did not go smoothly. Even after servicing, Masson's new and untested plane did not depart, angering a crowd of spectators. Invidious comparison to an earlier barnstormer, J. C. "Bud" Mars, was made; however, Masson was saved from the perturbed mob by local police and soldiers. Four days later, the French pilot crashed that same plane from 100 feet altitude, destroying the plane but sparing him injury.
In October 1911, Masson wowed Canadians in Alberta with his exhibition of flying despite a paucity of aviation gasoline. After several foiled attempts, on 20 October, he finally succeeded in flying over Victoria Park, and after buzzing several grazing horses to frighten them from a field, landed to greet a crowd of spectators. Towards the end of October, Masson planned a Canadian record distance flight following the railroad from Edmonton to Calgary. A special train full of paying spectators had paid $20 each to accompany Masson's epic flight. After several days of cold windy snowy weather, Masson took off, only to have his fuel tank break its mountings and drop on his head. The dazed aviator managed to land safely.
On 18 and 19 May 1912, Masson appeared at the fairgrounds at Lyons, Iowa as a member of the Ivan R. Gates flying circus. 
By January 1913, he could qualify for Aero Club of America Certificate No. 202 at the Glenn L. Martin Flying School.
Didier Masson