Economics – Comparing A321neo and A321ceo |

In this data analysis, we compare the economics of the A321neo and A321ceo based on US Department of Transportation Form 41 data. Our study shows, much like the A320neo, that the A321neo has a 16.0% improvement in seat-mile costs and a 10.7% improvement in aircraft mile costs over the A321ceo over the period 2022 through 1Q 2025 for all US reporting carriers. A better comparison is to utilize airlines flying both types, to avoid differences in seating configurations and differences in utilization. However, this is complicated by multiple layouts, as the A321 family is used in transcontinental and international services with different requirements. Complicating Factors Seating densities range from 228 to 230 seat configurations at Spirit and Frontier to a 102-seat configuration at American for NYC-LAX trans-con flights. Delta has 192 seats in its configuration, while American offers 102, 181, and 187-seat variants. As a result, seat-mile comparisons can be apples to oranges, even within the same carrier, due to the varying aircraft configurations as the fleet expands. The delivery of the first A321XL models from the A321neo family will enable longer-range flights to Europe, changing the average stage lengths between the types and providing yet another factor to consider when comparing models. The neo models tend to be scheduled on longer routes than the ceo aircraft. Finally, operating costs have been impacted by engine modifications and downtime for aircraft, particularly those powered by the Pratt & Whitney GTF, which has its most substantial market share with the A321 family. The distortions to operating costs from engine problems are reflected in the data and emerge in the cost per aircraft mile statistics, reflecting downtime during the period for multiple A321neo aircraft. What the Data Show The following chart shows seat-mile and aircraft-mile average costs for the first quarter of 2025 for the A321ceo, in light purple, and the A321neo, in light blue. [caption id="attachment_105347" align="aligncenter" width="640"] Source: AirInsight[/caption] We utilized data from the 1st quarter of 2015 for our comparisons, which show, as expected, lower seat-mile costs for the highest density seating found at Frontier and Spirit, with 230 and 228 seats, respectively, per Seat Geek. JetBlue, which introduced Mint service and new layouts for its transcontinental services, has slightly higher seat-mile costs than its competitors. Aircraft mile costs were highest for the ULCCs Frontier and Spirit, likely as a result of engine delays impacting aircraft availability. The Bottom Line Overall, the comparative economics trend is similar to that of the A320neo, with about 16% lower seat-mile costs and 10.7% lower aircraft-mile costs on average. The 16% seat-mile number validates Airbus' 16% expectations for better economics, but that is not matched in the aircraft mile calculation for reasons cited above. Nonetheless, as the only Middle of the Market narrow-body aircraft available and the logical replacement for the Boeing 757, the A321neo is the hottest-selling aircraft in the market, and likely to continue to be for the foreseeable future.

US Flight Planner - US DoT On-Time Data	Airbus vs Boeing - Official OEM Data
US Airline Schedule Performance - US DoT Data	Daily OEM Production & Deliveries -

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