Sit on the Left side of the plane for the best views on flights from Seattle to Rome. The left side wins on both ends: a spectacular Mount Rainier and Puget Sound departure from Seattle, plus a more varied coastal and river approach into Rome, compared to the right side's more ocean-dominated and featureless views.

During takeoff from Seattle Tacoma International (SEA), sit on the Left side for the best views. Departing SEA northbound then east over the Cascades, the left side offers views of Puget Sound, the Seattle skyline, and Mount Rainier looming to the south. This is one of the most dramatic domestic departure sequences in the US. Notable sights include: Mount Rainier, Puget Sound, Seattle skyline, Cascade Range.

When landing at Fiumicino (FCO), sit on the Left side for the best views. On approach to FCO from the north or west, the left side often reveals the Tyrrhenian coastline, Rome's suburban sprawl, and glimpses of the Apennines inland, giving more textured scenery than the flatter countryside on the right. Notable sights include: Tyrrhenian Sea coastline, Tiber River delta, Roman countryside, distant Apennine foothills.

The flight from Seattle Tacoma International (SEA) to Fiumicino (FCO) takes 10h 15m.

Route crosses northern Canada, Hudson Bay, southern Greenland's coastal ice sheet, and the North Atlantic before reaching Western Europe near Ireland and France.