Sit on the Left side of the plane for the best views on flights from Denver to Newark. Left side wins both ends of this flight. The Rocky Mountain Front Range on departure is one of the most dramatic views in domestic US aviation, and the Manhattan skyline approach into EWR is equally iconic. The right side offers plains and open Atlantic coast with no comparable landmarks at either end.

During takeoff from Denver International (DEN), sit on the Left side for the best views. DEN typically departs east on runway 16R/34L or uses eastward runways, then turns northeast toward EWR. Left-side passengers get the sweeping view back toward the Front Range of the Rockies as the aircraft climbs and banks. The entire mountain wall from Pikes Peak in the south to Longs Peak in the north is visible on the left side during climb-out. Notable sights include: Front Range of the Rocky Mountains (Pikes Peak, Mount Evans, Longs Peak), Denver city grid spreading across the high plains, Cherry Creek Reservoir southeast of the city, the distinctive white tent roof of DEN terminal receding below.

When landing at Newark Liberty International (EWR), sit on the Left side for the best views. EWR approaches typically come in from the west or southwest over New Jersey, lining up on runways oriented roughly northeast-southwest. Left-side passengers get the Manhattan skyline directly ahead and to the left, with the Hudson River and Upper New York Bay clearly visible. The approach over northern New Jersey puts the entire New York Harbor complex on the left side. Notable sights include: Manhattan skyline (Midtown and Lower Manhattan), Hudson River, Upper New York Bay, Newark Bay and the industrial port complex.

The flight from Denver International (DEN) to Newark Liberty International (EWR) takes Approximately 3 hours 45 minutes to 4 hours 15 minutes.

The flight tracks northeast across the Great Plains of Kansas and Nebraska, then over Iowa and Illinois. The Missouri River and Mississippi River are both crossed and visible as wide brown ribbons cutting through the agricultural grid. Over Indiana and Ohio the terrain becomes more wooded. The southern shore of Lake Erie may be visible to the north depending on routing. Pennsylvania's Appalachian ridges — the folded parallel ridges of the Ridge and Valley province — are clearly visible from altitude as a series of long northeast-trending wooded spines before descending into New Jersey.