Sit on the Left side of the plane for the best views on flights from Boston to Barcelona. Left side wins both departure and arrival. Over the Atlantic the views are similar on both sides, but the left seat delivers the Boston city skyline on takeoff and the Barcelona coastline and city grid on landing — the two most visually rewarding moments of the flight.

During takeoff from General Edward Lawrence Logan International (BOS), sit on the Left side for the best views. Logan's primary eastward departures over the harbor (Runways 04R/04L or 09) swing left over Boston Harbor and the city skyline. A left seat gives you the downtown Boston skyline, the Charles River, and Cambridge as the aircraft turns northeast toward the Atlantic. Notable sights include: Downtown Boston skyline, Boston Harbor and its islands, Charles River/Cambridge, Cape Cod peninsula visible to the southeast.

When landing at Barcelona (BCN), sit on the Left side for the best views. Barcelona's El Prat airport uses runways oriented roughly northeast-southwest (07L/07R or 25L/25R). Arrivals from the north typically approach from the sea over the Mediterranean, giving left-side passengers a clear view of the Barcelona city grid, the Eixample district, and Montjuïc before touchdown. Notable sights include: Barcelona city grid and Eixample district, Montjuïc hill, Mediterranean coastline and Barceloneta beach, Pyrenees foothills on the northern horizon.

The flight from General Edward Lawrence Logan International (BOS) to Barcelona (BCN) takes Approximately 7 to 8 hours.

The flight tracks northeast from Boston before arcing across the North Atlantic on a great circle route, passing south of Newfoundland and the Grand Banks, crossing the mid-Atlantic, then approaching Europe over the Bay of Biscay and northern Spain. Passengers may see the southern coast of Ireland or Cornwall at distance depending on routing, followed by the Pyrenees as a snow-capped ridgeline on descent into Barcelona.