Find great value on flights from Ottawa to Washington DC with CheapOair! Washington DC is the proud capital of United States of America. Packed with monuments, memorials and museums, there’s so much to do and see in the city that visitors would be completely spoilt for choice. Start your trip by visiting White House- the place where the US President works and lives with his family. Spend your afternoon at Lincoln Memorial, a spectacular tribute to the 16th president of the United States, Abraham Lincoln. Learn about America’s air and space programs at National Air and Space Museum. For the art connoisseurs, National Gallery of Art is a must recommended attraction. The gallery displays works by Matisse, Rothko and more. Whatever type of vacation you are looking for, CheapOair will help you save big on flights to Washington DC.