Philadelphia to Seattle flight path: PHL to BFI

Sit on the Right side of the plane for the best views on flights from Philadelphia to Seattle. While the Philadelphia departure offers urban and river scenery, the Seattle arrival features Mount Rainier and the Cascade Range—dramatic, iconic peaks visible for much of the descent. The mountain views outweigh the takeoff scenery for most passengers seeking memorable vistas.

During takeoff from Philadelphia International (PHL), sit on the Left side for the best views. Left side offers views of the Delaware River estuary and the industrial waterfront as you climb out westbound. You'll see the river's distinctive curves and the urban grid of Philadelphia receding below. Notable sights include: Delaware River, Philadelphia urban core, Schuylkill River confluence, Ben Franklin Bridge.

When landing at Boeing Fld King Co International (BFI), sit on the Right side for the best views. Right side provides excellent views of the Cascade Range and Mount Rainier during descent into Seattle. The mountain is typically visible from 50+ miles away on clear days and dominates the approach corridor. Notable sights include: Mount Rainier, Cascade Range, Puget Sound, Lake Washington.

The flight from Philadelphia International (PHL) to Boeing Fld King Co International (BFI) takes about 5 hours 15 minutes. The shortest flight path between them is 2,371 miles (3,816 km); winds and air traffic control usually add a few percent.

Appalachian Mountains (Pennsylvania and Ohio ridges), Great Lakes region (southern shore of Lake Erie visible on northern route variants), Great Plains transition zone (Indiana and Illinois), Mississippi River valley, Missouri River crossings, Rocky Mountain foothills (Wyoming and Montana), Columbia River Gorge (final approach into Seattle)