Sit on the Left side of the plane for the best views on flights from Boston to San Juan. While takeoff offers good coastal views on the right, the landing approach on the left provides more dramatic and visually distinctive scenery—the lush green mountains of El Yunque, the colorful Caribbean waters, and Old San Juan's historic waterfront make the arrival more rewarding than the Boston departure.

During takeoff from General Edward Lawrence Logan International (BOS), sit on the Right side for the best views. Right-side seats capture the Atlantic coastline and Boston Harbor as the aircraft climbs out over the water. You'll see the harbor islands, Nahant Bay, and the Massachusetts coast receding southward. Notable sights include: Boston Harbor and its islands, Nahant Bay, Atlantic Ocean, Massachusetts coastline.

When landing at Fernando Luis Ribas Dominicci (SIG), sit on the Left side for the best views. Left-side seats offer the best views during descent into San Juan. You'll see the northern coast of Puerto Rico, El Yunque National Forest's green ridges, and the approach over San Juan Bay with Old San Juan's colonial district visible. Notable sights include: El Yunque National Forest, Puerto Rico's northern coast, San Juan Bay, Old San Juan.

The flight from General Edward Lawrence Logan International (BOS) to Fernando Luis Ribas Dominicci (SIG) takes Approximately 4 hours 45 minutes to 5 hours 15 minutes.

The flight path crosses the Atlantic Ocean for roughly 1,000 nautical miles. Notable features along the route include: the continental shelf edge off the U.S. East Coast (visible as a color change in water depth within the first 30 minutes of flight), the Gulf Stream's darker blue waters (visible as a distinct band running northeast to southwest in the mid-Atlantic), and the Bahamas' shallow turquoise banks and islands appearing roughly 2 hours into the flight as the aircraft approaches the Caribbean. The Turks and Caicos Islands may be visible to the south of the direct track. As the aircraft descends toward Puerto Rico, Hispaniola's northern coast becomes visible on the left (western) side, and the Puerto Rico Trench—the deepest point in the Atlantic—lies directly beneath the flight path but is not visually distinct from altitude.