From IAD?

The right side (north-facing) is generally superior for this transcontinental route, offering iconic views of the Great Salt Lake, the turquoise waters of Lake Tahoe, and the rugged Sierra Nevada mountain range during the final hour of flight.

While the left offers Greenland views, the right side provides a superior arrival experience over Istanbul, featuring the Bosphorus, the historic peninsula, and the Sea of Marmara during the descent.

The left side offers the most iconic views of the Pacific Northwest, specifically a close-up look at Mount Rainier during the descent into Seattle, along with the dramatic peaks of the southern Rockies.

While both sides offer stunning views of the Rockies and the desert, the left side is the clear winner for the iconic approach into San Diego, providing an unparalleled view of the downtown skyscrapers and the San Diego Bay.

The left side is the clear winner for this route as it typically offers a direct view of the Grand Canyon and provides the iconic aerial perspective of the Las Vegas Strip, Lake Mead, and the Hoover Dam during the descent.

The left side is superior for this long-haul route, offering prime views of the Colorado Rockies and a spectacular aerial panorama of Waikiki Beach and Diamond Head during the standard approach into Honolulu.

While both sides offer mountain views over Pennsylvania, the Right Side is essential for the world-class approach into Billy Bishop. It provides a direct, close-up panorama of the CN Tower and the entire Toronto skyline as the plane descends over Lake Ontario.

The right side offers spectacular views of the Chesapeake Bay shortly after takeoff and the iconic New York City skyline, including the Statue of Liberty and Manhattan, during the final approach into Newark.

The left side of the aircraft offers the most dramatic scenery, particularly during the approach into Mexico City where you can often spot the iconic Popocatépetl and Iztaccíhuatl volcanoes.

The left side is superior for this transatlantic route due to the high-latitude track which offers stunning views of Greenland's ice sheets, the volcanic landscapes of Iceland, and the potential for Northern Lights during the night portion of the flight.

The left side of the aircraft offers the most iconic views of the American West, including the Grand Canyon and Lake Mead, followed by a dramatic approach over the Los Angeles basin.

The left side offers a front-row seat to the most dramatic geographic features of the high-latitude Great Circle route, including the Greenland ice sheet, the rugged Norwegian coast, and the best vantage point for the Aurora Borealis during night flights.