C
Evidence Grade C
Use with Hedging
Dated
75
75 -- customer satisfaction index for US airline industry (2021)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
75
Unit
Score
Data Vintage
2021
Entity
Evidence Quality
C
Moderate quality evidence
Useful directional data with some methodological gaps. Treat as indicative rather than definitive -- corroborate before citing in formal research.
Score breakdown
Extraction
95
Source Trust
50
Citation Chain
90
Independence
90
Methodology
45
Freshness
94
Sources (16)
American Customer Satisfaction Index
Primary
Tier A
https://dhl-freight-connections.com/en/business/terminal-in-poznan/ ↗
Source Article
Customer Satisfaction (CSAT) - Benbria
How satisfied customers are with a company’s product or service. This is often one of the Key Performance Indicators as it shows how satisfied customers are with a company’s products, services, customer support and brand.
Customer Satisfaction Scoring: CSAT is scored on a scale of 1 – 10. It is calc…
Also cited by
Korea Productivity Center
https://www.koreatimes.co.kr/business/companies/20150105/shilla-hotel-tops-in-sa…
2026-07-06
American Customer Satisfaction Index
https://www.infoworld.com/article/2278356/apple-tops-annual-customer-satisfactio…
2026-07-03
2026-08-11
2026-06-24
American Customer Satisfaction Index
https://theacsi.com/industries/manufacturing/personal-computers/
2026-07-08
DHL Freight Connections
https://dhl-freight-connections.com/en/business/customer-satisfaction-survey-goo…
2026-08-20
American Customer Satisfaction Index
http://arstechnica.com/business/2016/06/t-mobile-beats-att-and-verizon-in-custom…
2026-06-30
American Customer Satisfaction Index
http://arstechnica.com/business/2016/06/t-mobile-beats-att-and-verizon-in-custom…
2026-07-08
Institute of Customer Service
https://www.instituteofcustomerservice.com/virgin-mobile-consumers-hit-by-price-…
2026-06-24
listrak.com
https://listrak.com/
2026-08-08
Interaction Metrics
https://interactionmetrics.com/customer-service-gets-a-failing-grade/
2026-08-08
DHL Freight Connections
https://dhl-freight-connections.com/en/business/terminal-in-poznan/
2026-08-11
DHL Freight Connections
https://dhl-freight-connections.com/de/unternehmen/terminal-in-posen/
2026-08-11
2026-08-20
American Customer Satisfaction Index
http://arstechnica.com/business/2016/06/t-mobile-beats-att-and-verizon-in-custom…
2026-06-24
Original Research
American Customer Satisfaction Index
· Original study ↗
Methodology
According to the American Customer Satisfaction Index.
Methodology documented
Segmentation
Channelcommon_crawl
Cite this stat
Suggested hedging: based on claims without stated methodology, with unverified sample sizes...
Plain Text
US airline industry: 75 customer satisfaction index. Source: American Customer Satisfaction Index (2021). Via Lighthouse Intelligence -- https://lighthousedata.io/data/airline-industry-customer-satisfaction-score-2021
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<blockquote cite="https://lighthousedata.io/data/airline-industry-customer-satisfaction-score-2021" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>75</strong> -- customer satisfaction index for US airline industry<br><small>Source: American Customer Satisfaction Index (2021) · <a href="https://lighthousedata.io/data/airline-industry-customer-satisfaction-score-2021" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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