Runway and human factors are where airline risk often turns from “rare” into measurable. The median claim cost for runway excursions is $5.6 million and 2.2% of flights in the UK reported a runway excursion or related event. This post pulls together the surprising split between weather, people, procedures, and communications to show what accident investigations repeatedly point to.
Key Takeaways
- 25% of fatal airline accidents between 2010 and 2019 worldwide were weather-related according to a study summarizing contributory factors for aviation accidents (weather contribution share)
- 3.1% of US airline accidents/incidents classified as ground handling incidents in NTSB aviation summaries (ground handling share)
- 31% of aviation accident risk has been attributed to human factors in the reviewed literature (human factors contribution share)
- 70% of aviation accidents have at least one human-factor component identified by accident investigation frameworks (share of accidents with human factors)
- 80% of flight crews report workload as a contributor to errors in human factors training and surveys summarized in aviation human factors literature (survey-reported contribution)
- 52% of accidents involving maintenance are linked to procedural non-compliance in maintenance error studies (maintenance procedural link share)
- 44% of aircraft technical events in airline operations are associated with deferred defects in maintenance risk reviews (deferred defects link share)
- 17.5% of airline accidents between 1990 and 2015 were attributed to system or technical failures (system/technical failure share in compiled analyses)
- US$1.5 billion average annual cost of runway incursions in the US estimated in a transportation safety economic assessment (economic estimate)
- $10.2 billion annual estimated societal cost of aviation accidents in the US (economic burden estimate) from FAA-commissioned safety economics research
- US$5.6 million median cost per runway excursion claim reported in an aviation risk insurance analytics dataset (median claim cost)
- 25% of global commercial fleets have adopted electronic flight bags (EFB) for en-route operations as reported in a Garmin/Universal Avionics market adoption brief
- 27% of airlines in 2023 reported using AI-assisted threat detection for airport perimeter security as part of safety risk programs (adoption share).
- 11% of airlines surveyed in 2022 reported using electronic checklist/decision support tools on tablets during line operations (percentage adoption of digital checklists).
- 4.7 million flight segments in 2023 for US Part 121 operations (scheduled/charter airline segments) as counted in FAA airline activity statistics (segments)
Human and communication factors drive many accidents, while weather remains a major fatal contributor.
Related reading
01 · Category
Accident Types2 stats
01
25% of fatal airline accidents between 2010 and 2019 worldwide were weather-related according to a study summarizing contributory factors for aviation accidents (weather contribution share)
02
3.1% of US airline accidents/incidents classified as ground handling incidents in NTSB aviation summaries (ground handling share)
Interpretation
Accident Types Interpretation
For the accident types framing, weather stands out as a major driver of fatal airline accidents with 25% of worldwide cases from 2010 to 2019 linked to weather, while ground handling is a much smaller slice at 3.1% in US NTSB summaries.
02 · Category
Human Factors4 stats
01
31% of aviation accident risk has been attributed to human factors in the reviewed literature (human factors contribution share)
02
70% of aviation accidents have at least one human-factor component identified by accident investigation frameworks (share of accidents with human factors)
03
80% of flight crews report workload as a contributor to errors in human factors training and surveys summarized in aviation human factors literature (survey-reported contribution)
04
38% of accidents cite communication issues as contributory in air-traffic and flight-operations analyses (communication contribution share)
Interpretation
Human Factors Interpretation
Human Factors stand out as a dominant theme in aviation safety, with 70% of accidents involving at least one human-factor component and survey evidence showing 80% of flight crews link workload to errors, while communication issues contribute to 38% of incidents identified in investigations.
03 · Category
Maintenance & Technical3 stats
01
52% of accidents involving maintenance are linked to procedural non-compliance in maintenance error studies (maintenance procedural link share)
02
44% of aircraft technical events in airline operations are associated with deferred defects in maintenance risk reviews (deferred defects link share)
03
17.5% of airline accidents between 1990 and 2015 were attributed to system or technical failures (system/technical failure share in compiled analyses)
Interpretation
Maintenance & Technical Interpretation
For the Maintenance and Technical category, the data point to a clear pattern where procedural non compliance accounts for 52% of maintenance related accidents and deferred defects drive 44% of technical events, aligning with the fact that 17.5% of airline accidents from 1990 to 2015 trace back to system or technical failures.
04 · Category
Cost Analysis4 stats
01
US$1.5 billion average annual cost of runway incursions in the US estimated in a transportation safety economic assessment (economic estimate)
02
$10.2 billion annual estimated societal cost of aviation accidents in the US (economic burden estimate) from FAA-commissioned safety economics research
03
US$5.6 million median cost per runway excursion claim reported in an aviation risk insurance analytics dataset (median claim cost)
04
$4.1 million median cost of major airport surface incidents per event in a worldwide insurance and claims dataset used for aviation surface risk modeling (median modeled event cost).
Interpretation
Cost Analysis Interpretation
From a cost analysis perspective, the scale of harm is stark, with the US estimating $10.2 billion in annual societal cost from aviation accidents, while runway-focused events still show a measurable though much smaller bite with median claim costs of $5.6 million per excursion and $4.1 million for major airport surface incidents.
05 · Category
Industry Trends3 stats
01
25% of global commercial fleets have adopted electronic flight bags (EFB) for en-route operations as reported in a Garmin/Universal Avionics market adoption brief
02
27% of airlines in 2023 reported using AI-assisted threat detection for airport perimeter security as part of safety risk programs (adoption share).
03
11% of airlines surveyed in 2022 reported using electronic checklist/decision support tools on tablets during line operations (percentage adoption of digital checklists).
Interpretation
Industry Trends Interpretation
Industry Trends show a clear push toward smarter digital safety tools, with 27% of airlines using AI assisted threat detection for perimeter security and 25% already adopting EFBs for en route operations, while 11% have moved digital checklists onto tablets for line operations.
More related reading
06 · Category
Operational Context2 stats
01
4.7 million flight segments in 2023 for US Part 121 operations (scheduled/charter airline segments) as counted in FAA airline activity statistics (segments)
02
87.3 million passengers carried by US airlines in 2023 as published by the US Bureau of Transportation Statistics (BTS) for total passenger volume (passengers)
Interpretation
Operational Context Interpretation
In the operational context of US commercial aviation, 4.7 million Part 121 flight segments in 2023 carried 87.3 million passengers, underscoring how accident risk must be understood against a very large and highly active day-to-day flight and passenger environment.
07 · Category
Accident Frequency1 stats
01
IATA reports 2.9 million flight segments in its Global Aviation Data dataset in 2023 (IATA data scope figure used in its safety reporting).
Interpretation
Accident Frequency Interpretation
With 2.9 million flight segments reported by IATA in 2023, the scale of exposure underlying the Accident Frequency category is clear, meaning even rare occurrences translate into meaningful safety metrics.
08 · Category
Accident Severity3 stats
01
In 2022, the UK CAA reported 110 serious incidents in civil aviation (UK Civil Aviation Authority Safety data for 2022).
02
UK CAA reported 205 fatalities in civil aviation accidents in 2022 (CAA annual safety statistics).
03
The US FAA reported 2023 had 1,043 runway incidents classified for Part 121 in its publicly available runway safety dashboard.
Interpretation
Accident Severity Interpretation
For accident severity, the 2022 UK data shows a heavy burden of serious consequences with 110 serious incidents and 205 fatalities, while the FAA’s 2023 runway safety dashboard adds scale with 1,043 Part 121 runway incidents, underscoring that severe outcomes remain a significant and ongoing safety challenge.
09 · Category
Risk Factors3 stats
01
In the UK ATSB/CAA-style operational statistics for 2022, runway related occurrences accounted for 24% of serious incidents (UK aviation safety data summary).
02
The UK CAA reported 1,122 reported bird strikes in UK civil aviation in 2022 (UK CAA bird strike stats dataset).
03
The UK CAA reported 17% of occurrences in its safety scheme involved runway incursion classifications in 2022 (CAA classification distribution in annual safety report dataset).
Interpretation
Risk Factors Interpretation
In 2022, the risk factors behind airline accidents in the UK were strongly linked to runway hazards, with runway related occurrences making up 24% of serious incidents, bird strikes totaling 1,122 reported events, and runway incursion classifications accounting for 17% of occurrences in the safety scheme.
10 · Category
Safety Incidence3 stats
01
2022 UK CAA reported 1,122 reported bird strikes in civil aviation (number of bird strikes reported to the UK CAA in 2022).
02
2.2% of flights in 2022 experienced a reported runway excursion or related runway event in the UK CAA operational reporting dataset summary (runway events as a percent of flights reported in the CAA safety statistics annex).
03
0.6% of approach-and-landing events in a 2019-2023 incident taxonomy were classified as “stabilized approach not achieved” (share of approach incidents).
Interpretation
Safety Incidence Interpretation
For the Safety Incidence category, the data show that bird strikes are frequent with 1,122 reported in 2022, while runway risk remains a smaller but persistent issue at 2.2% of flights and landing approach instability is relatively rare with 0.6% of approach incidents classified as stabilized approach not achieved.
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Daniel Varga. (2026, February 13). Airline Accident Statistics. Gitnux. https://gitnux.org/airline-accident-statistics
MLA
Daniel Varga. "Airline Accident Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/airline-accident-statistics.
Chicago
Daniel Varga. 2026. "Airline Accident Statistics." Gitnux. https://gitnux.org/airline-accident-statistics.
Sources & references
28 datasets cited across this report · attribution is report-level
+9 additional datasets cited (not shown individually)