A video statement from Sisi's office showed crates in wrapping that read in English and Arabic, "From the Egyptian people to the American people," being loaded into a military cargo plane.
Dutch Ruppersberger, who leads a group in the US House of Representatives that promotes relations with Egypt, said the plane landed at Andrews Air Force base outside Washington.
The plane brought 200,000 masks, 48,000 shoe covers and 20,000 surgical caps among other supplies, said Ruppersberger, a Democrat who heads the bipartisan group.