Sit on the Right side of the plane for the best views on flights from San Diego to St. Louis. While left seats offer excellent San Diego departure views, right seats provide the more dramatic and geographically significant landing sequence over the Mississippi River and Gateway Arch—the visual highlight of this 4.5-hour flight. The river approach is more consistently rewarding than the initial climb-out.

During takeoff from San Diego International Lindbergh Fld (SAN), sit on the Left side for the best views. SAN typically departs runways 09L/09R (westbound over the Pacific) or 27L/27R (eastbound over the city). For eastbound departures toward STL, left seats face north initially, capturing San Diego Bay, Point Loma, and the coastal urban sprawl. Westbound departures offer ocean but less geographic interest for this route. Notable sights include: San Diego Bay with Coronado Island to the south, Point Loma peninsula, downtown San Diego skyline to the east, and the Pacific Ocean extending westward.

When landing at Lambert St Louis International (STL), sit on the Right side for the best views. STL uses runways 01L/01R (northbound) or 30L/30R (southbound). Typical approach vectors from the west bring aircraft over the Mississippi River valley. Right-side seats during descent capture the river's dramatic meanders, the Gateway Arch, and downtown St. Louis before touchdown. Notable sights include: Mississippi River with its characteristic S-curves, Gateway Arch and downtown St. Louis skyline, the Illinois bluffs across the river to the east, and the confluence area where the Missouri River meets the Mississippi.

The flight from San Diego International Lindbergh Fld (SAN) to Lambert St Louis International (STL) takes Approximately 4 hours 15 minutes.

The flight path crosses the Colorado River near the Arizona-California border (visible around 45 minutes out), then traverses the Mojave Desert and Arizona high desert plateau. The Grand Canyon region passes to the north around the 2-hour mark. The flight then crosses New Mexico and the Texas Panhandle, with the Canadian River visible in the Oklahoma Panhandle region. As the aircraft approaches Missouri, the Ozark Plateau becomes visible, followed by the Mississippi River valley descent into St. Louis.