Extra space without flatbeds Row 16 offers the best legroom due to being situated at the front by the exit, but passengers should be aware of its lack of windows. Economy class on American's 777-300ERs spans from row 20 to row 44.

On the Boeing 777-300ER, the "holy grail" of economy seating is usually found in the exit row seats, typically located at Row 16, 34, or similar depending on the airline's specific configuration. These seats offer near-infinite legroom because there is no seat in front of you. Another top choice is the bulkhead seats at the front of each cabin section, which provide extra knee room and no one reclining into your space. For couples, look for the twin seats at the very rear of the plane; because the fuselage tapers, many airlines (like Emirates or Qatar) switch from a 3-4-3 layout to 2-4-2 in the last few rows. These "window/aisle" pairs offer more privacy and extra storage space between the seat and the wall. However, avoid the very last row, as these seats often have limited recline and are noisy due to their proximity to the galleys and lavatories. Use a tool like SeatGuru or AeroLOPA to check your specific airline's 777-300ER layout before booking.