What happened
It was reported in July 2025 that Delta Air Lines was testing AI pricing technology from Fetcherr across about 3 per cent of its domestic network, with plans to reach 20 per cent by the end of the year. Three United States senators wrote to Delta asking what data the system used, how many passengers would be affected and what safeguards were in place.
It was reported that Delta replied in a letter dated 31 July 2025 that it had never used, was not testing and did not plan to use fares targeting individual customers based on personal data. Delta described the technology as a decision support tool using aggregated data, with analysts overseeing its recommendations.
It was reported in November 2025 that members of Congress questioned Delta again. Their letter quoted the airline’s president previously describing AI pricing as tailored to “that flight, on that time, to you, the individual.” Delta’s position remained that its pricing did not target individuals using personal data.
What an auditable version would have shown
It was reported that lawmakers wanted to know what data Delta’s AI pricing system used. Delta said personal data was not used and that the system made recommendations to analysts.
The sources reviewed do not show the inputs used for an individual recommendation. A record for each one could show what data the system read, what it recommended and whether an analyst changed it.
Where the gap was
It was reported that lawmakers raised concerns about whether personal data could be used in AI pricing. Delta said it does not use personal data for ticket pricing and does not share personal information with Fetcherr. The sources reviewed do not establish that Delta used personal data in its pricing system.
A ConstraintGate is designed to check whether prohibited data enters the pricing process. A ConductRecord keeps the inputs, the recommendation and any change made by an analyst. A MetricRecord can show what happened across those records.
What governance should have looked like
It was reported that Delta said its fares were based on factors including origin and destination, advance purchase and length of stay. Delta also said the AI system used aggregated data and did not target individual customers using personal data.
It was reported in August 2026 that a congressional inquiry asked eight airlines, including Delta, about their use of customer and third party data in pricing. Responses were requested by 25 August 2026. The sources reviewed record no finding that Delta used personal data to set individual fares.
Where an organisation uses AI to recommend prices, best practice would be to keep a record of the data used for each recommendation, what the system recommended and what happened to that recommendation.
Failure Pattern: it was reported that lawmakers asked what data Delta’s AI pricing system used. Delta said personal data was not used. The sources reviewed did not identify records showing the inputs used for individual recommendations.
Governance Principle: when AI influences pricing, an organisation should be able to show what data went into a recommendation, what the system returned and whether a person changed it.
The reference implementation of ConstraintGate, ConductRecord and MetricRecord is open source. It lives at github.com/saffronandindia/headlights-oss, Apache 2.0 licensed and free to install. The repository is public now.
Sources
- Delta responds to misinformation around AI pricing, carrying the airline’s letter of 31 July 2025 (Delta News Hub, 7 August 2025)
- Gallego, colleagues demand answers from Delta CEO as company moves toward AI pricing model to set airfares (Office of Senator Ruben Gallego, 21 July 2025)
- Letter to Delta on AI use in ticket pricing, 5 November 2025 (Office of Representative Jesus G. Garcia)
- Reps. Garcia and Nadler lead House colleagues in demanding answers from Delta CEO about AI use in ticket pricing (Office of Representative Jesus G. Garcia)
- Letter to eight airlines on surveillance pricing, 11 August 2026 (Democrats, House Committee on Energy and Commerce)
- House committee expands surveillance pricing inquiry to airlines (DLA Piper, August 2026)
- Delta encouraged by early results of AI pricing with Fetcherr, carrying the deployment figures (PhocusWire, 14 July 2025)