Boeing 787-9 Dreamliner vs Boeing 777-300ER: Cabin & Specs Comparison

Comparing the Boeing 787-9 Dreamliner and Boeing 777-300ER

Choosing between the **Boeing 787-9 Dreamliner** and **Boeing 777-300ER** can make a significant difference in your long-haul flight experience.

#### Specialist Analysis Leveraging its next-gen composite fuselage, the **Boeing 787-9 Dreamliner** maintains a lower cabin altitude (approx. 6,000ft), significantly reducing long-haul fatigue and eye dryness for contact lens wearers compared to the **Boeing 777-300ER**.

#### Seat Comfort The Boeing 787-9 Dreamliner features an economy seat width of **17.3 inches**, while the Boeing 777-300ER offers **17.0 inches**. For long flights, even half an inch can impact sleep quality.

#### Cabin Environment

• **Noise Level**: Boeing 787-9 Dreamliner is rated as *Ultra Quiet (Composite)*, compared to the Boeing 777-300ER's *Standard*.
• **Humidity**: The Boeing 787-9 Dreamliner provides *Higher (Composite Fuselage)* air, which helps reduce jet lag symptoms.
• **Technology**: Carbon-fiber composite structure enables larger windows and lower cabin altitude.

#### Technical Capabilities The Boeing Boeing 787-9 Dreamliner has a range of **14,140 km**, whereas the Boeing Boeing 777-300ER can fly **13,649 km**.