Sit on the Left side of the plane for the best views on flights from Dublin to Denver. Left side wins at both ends of the flight. Over the Atlantic the views are similar on both sides, but the left seat delivers Dublin Bay on departure and the full Rocky Mountain Front Range panorama on arrival — the two most dramatic visual moments of the journey.

During takeoff from Dublin (DUB), sit on the Left side for the best views. Dublin typically departs westward on runway 28, so a left (south-facing) seat gives you Dublin Bay, the Poolbeg chimneys, and the Wicklow Mountains as the aircraft climbs and turns northwest. Right seats face inland toward flat suburban Dublin with little of interest. Notable sights include: Dublin Bay and Poolbeg Peninsula, Wicklow Mountains to the south, Howth Head promontory, Dublin city centre grid.

When landing at Denver International (DEN), sit on the Left side for the best views. Denver International sits east of the city and typically lands westbound on runways 25L/25R or 34R. A left (south-facing) seat on approach from the east gives you the best view of the Rocky Mountain Front Range — the entire wall from Pikes Peak in the south to Longs Peak in the north — spread across the western horizon as you descend over the plains. Notable sights include: Rocky Mountain Front Range (Longs Peak to Pikes Peak), Denver city skyline, Cherry Creek Reservoir, flat High Plains stretching east.

The flight from Dublin (DUB) to Denver International (DEN) takes Approximately 9 to 10 hours westbound.

The route tracks northwest over Ireland then across the North Atlantic, passing south of Greenland's ice sheet and iceberg-filled waters near Cape Farewell, then over the largely uninhabited boreal forests and tundra of Labrador and Quebec, across Hudson Bay's southern reaches, over the Great Lakes region or northern Minnesota, then descending across the flat agricultural grid of the American Midwest and the High Plains of Nebraska and eastern Colorado before the Rockies come into view.