Iberia is adding 10 new U.S. destinations to its network, after extending its code-sharing arrangements with American Airlines. Iberia passengers can now fly on to Albuquerque, Buffalo, Baltimore, Charlotte, Milwaukee, Oklahoma City, Pittsburgh, Richmond, Rochester, and San Antonio, in connection with the Spanish airline’ flights to Chicago’s O’Hare airport.

With these new destinations, Iberia passengers can now travel to a total of 48 cities in the United States. The Spanish airline directly serves five of them -Boston, Chicago, Miami, New York, and Washington D.C.- while flights to the other destinations in the United States are operated by American Airlines, Iberia’s U.S. partner in the oneworld alliance.

The Spanish flag carrier started flying to the United States in August 1954, when it launched its Madrid-New York route. In 2007, it carried 845,179 passengers between Spain and the U.S., an increase of 21% from the previous year. Average cabin occupancy on these routes reached 84.8%.

Iberia now operates 11 flights weekly to New York, and offers daily flights to Chicago and Miami, while flying three times a week to Boston and to Washington D.C. It is the only airline with direct flights from Madrid to Boston, Chicago, and the U.S. capital.