Sit on the Left side of the plane for the best views on flights from Montreal to Washington. While takeoff on the right offers Montreal river views, the landing approach on the left provides more dramatic and sustained scenery—the Potomac River, Blue Ridge Mountains, and the transition from Piedmont to mountain terrain make the descent visually superior to the climb-out.

During takeoff from St Hubert (YHU), sit on the Right side for the best views. Right side offers views of the St. Lawrence River and Montreal's urban sprawl as you climb out. The river curves distinctly southeast from St. Hubert, and you'll see the city grid spreading across the southern shore before banking toward the US. Notable sights include: St. Lawrence River, Montreal metropolitan area, Île Perrot to the west, Laurentian foothills in the distance to the north.

When landing at Washington Dulles International (IAD), sit on the Left side for the best views. Left side provides excellent views during descent into Dulles. You'll see the Potomac River, the Blue Ridge Mountains on the western horizon, and the sprawl of northern Virginia's suburban development. The approach path typically brings you over Loudoun County with clear sightlines to the landscape. Notable sights include: Potomac River, Blue Ridge Mountains (western horizon), Loudoun County suburban development, Shenandoah Valley in far distance.

The flight from St Hubert (YHU) to Washington Dulles International (IAD) takes Approximately 2 hours 15 minutes.

The flight path crosses the Hudson River valley near New York, then follows a southwest corridor over the Appalachian Plateau. Notable midpoint features include the Hudson River and Catskill Mountains (visible from altitude around 30,000 feet if clear), the ridge-and-valley topography of Pennsylvania, and the northern Shenandoah Valley as you approach Virginia. The Appalachian Mountains run roughly parallel to your flight path on the left (west) side throughout the journey.