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777X & A350XWB: What's the big difference? A comparison between the 777 and A350


left side view of a 777-9X (TOP) and A350-1000 (BOTTOM)

The Boeing 777X and the Airbus A350 XWB represent the aviation industry's most innovative and efficient long-haul aircraft. This post is a comparison between the 777 and A350. Analyzing their distinct features regarding capacity, range, engine technology, materials, and market positioning reveals each aircraft's unique contributions and advantages. This article delves into the details of these two aircraft, highlighting their technological advancements, engineering capabilities, and market positioning. It also provides a comprehensive overview of their suitability for ultra-long-haul travel.


Capacity and Configuration:

The Boeing 777X offers airlines versatile seating arrangements with two variants, accommodating a wide range of passenger capacities. Airlines may choose a high-density layout to increase passenger numbers or a more spacious configuration for enhanced comfort. In contrast, the Airbus A350 XWB, designed for extended range, may have a slightly more limited seating capacity than the larger 777-9. It balances passenger numbers and the ability to cover long-haul distances efficiently.


Boeing 777X:



  • Variants: The Boeing 777X comes in two variants, the 777-8 and the 777-9.

  • 777-8 Capacity: Typically accommodates around 384 passengers in a two-class configuration.

  • 777-9 Capacity: Typically seats 426 passengers in a two-class configuration.

  • Configuration: Offers flexibility in seating arrangements, allowing airlines to choose between higher-density layouts for increased passenger numbers or more spacious configurations for enhanced comfort.

Airbus A350 XWB:



  • Capacity: Designed to carry approximately 300-440 passengers in a two-class configuration.

  • Configuration: Strikes a balance between passenger capacity and extended range, catering to lower-demand routes or emphasizing fuel efficiency.


Range and Operational Focus:

The Airbus A350 XWB is positioned as an aircraft capable of connecting city pairs that were previously challenging with other models. Its remarkable range makes it suitable for long-haul flights with a moderate number of passengers, catering to routes with lower demand or emphasizing fuel efficiency. The Boeing 777X, while also excelling in long-range capabilities, may be more suitable for routes with higher passenger demand, leveraging its larger seating capacity.


comparison between GE9X (LEFT) and Rolls-Royce Trent XWB engine sizes

Engine Technology:

Boeing's 777X is equipped with the powerful GE9X engines, known for their size and efficiency. These engines incorporate advanced technologies to enhance fuel efficiency and reduce environmental impact. The Airbus A350 XWB relies on Rolls-Royce Trent XWB engines, recognized for their reliability and fuel efficiency, contributing to the aircraft's overall performance.


composite material for an aircraft

Materials and Design:

Both aircraft extensively use composite materials, providing weight reduction and increased fuel efficiency. The A350 XWB, benefiting from a more recent design, incorporates newer technologies and materials developed by Airbus. The Boeing 777X introduces folding wingtips, a distinctive feature allowing the aircraft to maintain optimal wingspan during flight while reducing it on the ground to fit within airport gate constraints.


plane flying in sky directly above, surrounded by futuristic type wavy building

Market Positioning:

The Boeing 777X competes with the Airbus A350 and other large twin-engine aircraft. Building on the success of the Boeing 777 series, it appeals to airlines with diverse long-haul operational requirements. The Airbus A350 XWB occupies a niche market, serving as an aircraft tailored for ultra-long-haul routes with a slightly reduced passenger capacity. Its success depends on the demand for extended-range flights and the specific operational preferences of airlines.


silhouette of people standing looking at phones with carry-on baggage, in an airport terminal during sunset

The Boeing 777X and the Airbus A350 XWB are advanced, fuel-efficient, and capable long-range aircraft. Their selection depends on the unique needs of airlines, considering factors such as route profiles, passenger demand, and overall operational strategies. Each aircraft brings distinct strengths, catering to different segments within the long-haul aviation market.

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