767-300ER vs 777-9 (777X)
The 777-9 (777X) leads, topping 5 of 7 compared metrics.
The Boeing Commercial Airplanes 767-300ER (introduced 1988) and the Boeing Commercial Airplanes 777-9 (777X) (introduced 2026) 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 cabin capacity, where the 777-9 (777X) carries more passengers. Below we compare them spec by spec, then break down which aircraft suits which mission.
6 more specs per aircraft — ceiling, climb, cabin, dimensions and more — are free with an account.
767-300ER vs 777-9 (777X): the key differences
- The 777-9 (777X) delivers 14% more range (767-300ER: 6,385 nm; 777-9 (777X): 7,285 nm).
- The 777-9 (777X) delivers 6% more cruise speed (767-300ER: 459 kt; 777-9 (777X): 488 kt).
- The 777-9 (777X) delivers 21% more passenger capacity (767-300ER: 351 seats; 777-9 (777X): 426 seats).
- The 777-9 (777X) is the newer design (introduced 2026 versus 1988 for the 767-300ER), a gap of 38 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 412,775 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 777-9 (777X) 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?
On published specifications the 777-9 (777X) leads on both range and cabin capacity, so it suits operators who want maximum mission flexibility from a single airframe. The 767-300ER can still be the smarter buy on acquisition cost, operating economics, runway performance, or current availability — the factors that rarely show up in a spec sheet. Our acquisition advisory team can model both against your actual mission profile before you commit.
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767-300ER vs 777-9 (777X): FAQs
Which has the longer range, the 767-300ER or the 777-9 (777X)?
The 777-9 (777X) has the longer published range — 7,285 nm versus 6,385 nm for the 767-300ER.
Does the 767-300ER or 777-9 (777X) seat more passengers?
The 777-9 (777X) carries more passengers at maximum configuration — up to 426 seats, compared with 351 on the 767-300ER.
Which is faster, the 767-300ER or the 777-9 (777X)?
The 777-9 (777X) cruises faster, at 488 kt versus 459 kt for the 767-300ER.
Which is newer, the 767-300ER or the 777-9 (777X)?
The 777-9 (777X) is the newer design, introduced in 2026 versus 1988 for the 767-300ER.
Is the 767-300ER or the 777-9 (777X) the larger aircraft?
By maximum takeoff weight the 777-9 (777X) is the larger aircraft — 775,000 lbs versus 412,775 lbs for the 767-300ER.
Should I buy the 767-300ER or the 777-9 (777X)?
On published specifications the 777-9 (777X) leads on both range and cabin capacity, so it suits operators who want maximum mission flexibility from a single airframe. The 767-300ER can still be the smarter buy on acquisition cost, operating economics, runway performance, or current availability — the factors that rarely show up in a spec sheet. Our acquisition advisory team can model both against your actual mission profile before you commit.
Still weighing up the 767-300ER vs 777-9 (777X)?
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.