777-9 (777X) vs 787-10 Dreamliner
The 777-9 (777X) leads, topping 3 of 7 compared metrics.
The Boeing Commercial Airplanes 777-9 (777X) (introduced 2026) and the Boeing Commercial Airplanes 787-10 Dreamliner (introduced 2018) are two aircraft buyers regularly weigh against each other. Both are commercial, which makes them natural cross-shopping rivals. The clearest separation between them is range, where the 777-9 (777X) has the advantage. The spec-by-spec breakdown below is followed by a mission-fit read and a buyer's recommendation.
6 more specs per aircraft — ceiling, climb, cabin, dimensions and more — are free with an account.
777-9 (777X) vs 787-10 Dreamliner: the key differences
- The 777-9 (777X) delivers 13% more range (777-9 (777X): 7,285 nm; 787-10 Dreamliner: 6,430 nm).
- The 777-9 (777X) and 787-10 Dreamliner are evenly matched on cruise speed, both at 488 kt.
- The 787-10 Dreamliner delivers 3% more passenger capacity (777-9 (777X): 426 seats; 787-10 Dreamliner: 440 seats).
- The 777-9 (777X) is the newer design (introduced 2026 versus 2018 for the 787-10 Dreamliner), a gap of 8 years that usually shows up in avionics, cabin systems and fuel burn.
- The 777-9 (777X) is the larger aircraft by maximum takeoff weight (775,000 lbs versus 560,000 lbs), which typically buys more cabin and payload at the cost of higher trip economics.
Which mission suits which aircraft
Both aircraft are built for nonstop ultra-long-haul routes, so outright range rarely separates them — the call leans on cabin (the 787-10 Dreamliner seats more), trip economics and what is actually available on the market. Match the airframe to how you fly most weeks, not to the headline range figure.
Which should you choose?
Choose the 777-9 (777X) when nonstop range is the deciding factor, and the 787-10 Dreamliner when cabin capacity and payload matter more; the 777-9 (777X) holds the cruise-speed edge. The right answer ultimately depends on acquisition cost, maintenance-program status, and what is actually available on the market — talk to our acquisition advisory team to pressure-test the choice against your missions and budget.
More comparisons
777-9 (777X) vs 787-10 Dreamliner: FAQs
Which has the longer range, the 777-9 (777X) or the 787-10 Dreamliner?
The 777-9 (777X) has the longer published range — 7,285 nm versus 6,430 nm for the 787-10 Dreamliner.
Does the 777-9 (777X) or 787-10 Dreamliner seat more passengers?
The 787-10 Dreamliner carries more passengers at maximum configuration — up to 440 seats, compared with 426 on the 777-9 (777X).
Which is newer, the 777-9 (777X) or the 787-10 Dreamliner?
The 777-9 (777X) is the newer design, introduced in 2026 versus 2018 for the 787-10 Dreamliner.
Is the 777-9 (777X) or the 787-10 Dreamliner the larger aircraft?
By maximum takeoff weight the 777-9 (777X) is the larger aircraft — 775,000 lbs versus 560,000 lbs for the 787-10 Dreamliner.
Should I buy the 777-9 (777X) or the 787-10 Dreamliner?
Choose the 777-9 (777X) when nonstop range is the deciding factor, and the 787-10 Dreamliner when cabin capacity and payload matter more; the 777-9 (777X) holds the cruise-speed edge. The right answer ultimately depends on acquisition cost, maintenance-program status, and what is actually available on the market — talk to our acquisition advisory team to pressure-test the choice against your missions and budget.
Still weighing up the 777-9 (777X) vs 787-10 Dreamliner?
Specs only take you so far. Our advisors give an independent recommendation based on your mission, budget and how you actually fly — and represent your side through to purchase.