U.S. FEDRegulation
DOT delays airline delay and cancellation cause-reporting rule to February 1, 2027
The Department of Transportation delayed the effective date of its September 3, 2026 final rule revising airline delay and cancellation cause categories under section 511(b) of the FAA Reauthorization Act of 2024. The delay, published October 15, 2026, at 91 FR 65456, moved the effective date from October 19, 2026, to February 1, 2027, following a September 21, 2026 request from Airlines for America.
Key points
- Reporting carriers file cause reports for delays and cancellations of flights occurring on or after January 1, 2027 under the revised categories.Federal Register
- Carriers must submit each month's report to the Bureau of Transportation Statistics within 15 days after the month ends.Federal Register
- The September rule requires ten specified event types to be excluded from the carrier-controllable causal code in 14 CFR 234.4.Federal Register
- The rule carries RIN 2105-AF29 and Docket No. DOT-OST-2026-1257.Federal Register