Sit on the Left side of the plane for the best views on flights from Chicago to Dublin. Left side wins both the departure and arrival phases. During the transatlantic cruise at 35,000 feet over open ocean there is little to distinguish sides, but the bookend views — Chicago's lakefront skyline on departure and Dublin Bay with the Wicklow Mountains on arrival — make the left side the clear choice for the full journey.

During takeoff from Chicago Ohare International (ORD), sit on the Left side for the best views. ORD departures heading northeast (typical for transatlantic routing) put the left side facing southeast toward downtown Chicago. You get a clear view of the Loop skyline, Lake Michigan's shoreline, and the lakefront parks as you climb out. Notable sights include: Chicago Loop skyline with Willis Tower, Lake Michigan shoreline, Grant Park and Museum Campus, Chicago River grid pattern.

When landing at Dublin (DUB), sit on the Left side for the best views. Dublin Airport's primary instrument approaches typically come in from the northeast over the Irish Sea, meaning the aircraft tracks southwest on final. The left side faces southeast toward Dublin Bay, the city center, and the Wicklow Mountains in the distance — the most visually rewarding approach geometry. Notable sights include: Dublin Bay and coastline, Dublin city center and the Liffey estuary, Wicklow Mountains on the southern horizon, Howth Head peninsula.

The flight from Chicago Ohare International (ORD) to Dublin (DUB) takes Approximately 8 to 8.5 hours.

The great circle route tracks northeast from Chicago over the Upper Peninsula of Michigan, then across southern Ontario and Quebec, before crossing the Gulf of St. Lawrence and Newfoundland near Gander. The route then crosses the North Atlantic, passing south of Greenland and Iceland, before tracking southeast across the open ocean toward the Irish coast. Passengers may glimpse the Newfoundland coastline and icebergs in the Labrador Sea in good visibility, and on clear days the southern tip of Greenland's ice sheet can appear as a white mass on the northern horizon.