The Department of Transportation has delayed changes to airline delay and cancellation reporting until February 1, 2027. Its October 15 final rule says the revised reporting categories will apply to flights occurring on or after January 1, 2027.
The effective date had been October 19, 2026. The new date gives the department and airlines more time to prepare their reporting systems.
What the categories concern
DOT describes an underlying September 3 rule that changes how airlines classify causes of flight delays and cancellations. It says ten specific events previously included in the Air Carrier category will instead be captured in a new reporting category.
The department ties that change to exclusions in the FAA Reauthorization Act of 2024. This report reads the delay notice; it does not independently review the earlier rule's complete list of events.
Classification affects how an airline reports an event to the Bureau of Transportation Statistics. A reporting label should not, by itself, be treated as a determination of a particular passenger's rights.
Two dates with different jobs
February 1 is the revised rule's effective date. January 1 is the beginning of the flight period DOT says the revised categories will cover.
The notice says carriers must submit cause reports within 15 days after the end of the month being reported. Airlines must report the entire month of January 2027 using the revised categories.
Those dates describe the collection and submission of information. The notice does not announce a new refund entitlement or decide a claim arising from an individual canceled flight.
Why DOT moved the start
According to the notice, Airlines for America requested the delay on September 21. It cited time needed to update technical instructions, airline systems and BTS systems.
DOT agrees that beginning with a calendar year will make the information clearer. It also says the delay gives it more time to obtain required approval for the revised information collection.
No carrier's implementation or reported performance was independently assessed.