Sit on the Left side of the plane for the best views on flights from Calgary to Seattle. The left seat wins overall because the Rocky Mountain departure view from Calgary is one of the most spectacular in North America — the abrupt transition from prairie to mountain wall is visually stunning. Mid-flight over British Columbia, the left seat also tracks the Okanagan highlands and Cascades approaching from the north. The right seat advantage on landing is real but shorter in duration.

During takeoff from Calgary International (YYC), sit on the Left side for the best views. YYC's primary departure runway 35L/35R sends aircraft northbound before turning west-southwest toward Seattle. A left (west-facing) seat captures the Rocky Mountain Front Ranges rising dramatically above the Bow River valley and the Calgary skyline receding to the southeast. The Canadian Rockies are the dominant visual feature on climb-out. Notable sights include: Rocky Mountain Front Ranges (Rundle, Cascade, Ha Ling), Bow River valley, Calgary downtown skyline, Nose Hill Park plateau.

When landing at Seattle Tacoma International (SEA), sit on the Right side for the best views. SeaTac's primary arrival from the north uses runway 16L/16R, meaning aircraft approach from the north heading south. A right (west-facing) seat gives a clear view of Puget Sound, the Olympic Peninsula, and the Seattle skyline as the aircraft descends over the sound. The left seat faces east toward the Cascade foothills, which are less dramatic on final approach. Notable sights include: Puget Sound, Seattle downtown skyline and Elliott Bay, Olympic Mountains across the sound, Vashon Island.

The flight from Calgary International (YYC) to Seattle Tacoma International (SEA) takes Approximately 1 hour 45 minutes to 2 hours.

The flight tracks southwest over the Okanagan Valley in British Columbia, the Cascade Range along the BC-Washington border, the North Cascades including the Skagit River valley, and Mount Baker (3,286m) visible as a prominent snow-capped volcanic cone to the east as the aircraft descends into the Seattle basin