Sit on the Left side of the plane for the best views on flights from Rome to Seattle. Left side wins both the departure over Rome and the arrival with Mount Rainier and the Seattle skyline. During the transatlantic and transcontinental cruise, the left side also faces south over Greenland's ice sheet and later the Canadian Rockies depending on routing, making it the stronger choice throughout.

During takeoff from Ciampino (CIA), sit on the Left side for the best views. Ciampino's primary departure runway 15 sends aircraft southeast before turning northwest toward the Atlantic. A left seat gives you the sweep back over central Rome — the Colosseum, Circus Maximus, and the Tiber's distinctive S-bend are all clearly identifiable from low altitude. The Vatican's dome and St. Peter's Square are visible to the northwest as the aircraft banks. Notable sights include: Colosseum and Roman Forum complex, Tiber River bends through central Rome, Vatican dome and St. Peter's Square, Castelli Romani volcanic hills to the southeast.

When landing at Seattle Tacoma International (SEA), sit on the Left side for the best views. SeaTac's primary arrival runways 16L/16R bring aircraft in from the north heading south, meaning a left seat faces east toward the Cascade Range. Mount Rainier dominates the eastern horizon at 14,411 feet and is unmistakable on approach, with the Seattle skyline and Elliott Bay visible to the northeast. This is one of the most dramatic approach views in North America. Notable sights include: Mount Rainier to the east, Elliott Bay and Seattle skyline to the northeast, Lake Washington stretching north-south east of Seattle, Puget Sound below and to the west.

The flight from Ciampino (CIA) to Seattle Tacoma International (SEA) takes Approximately 11 to 12 hours nonstop, though this route typically involves a connection as no carrier operates it nonstop.

Northbound routing typically crosses the Alps near the Mont Blanc massif, then tracks over southern France and the Bay of Biscay, across the North Atlantic near Iceland and southern Greenland's ice sheet, then over Labrador and Quebec, the Great Lakes region, and the northern Rocky Mountains and Cascades before descending into Seattle