National-Level ATPI Series
NOTE: The U.S. Origin ATPI trend line depicts quarterly changes in airfares for all domestic-origin itineraries. For further details about the ATPI, see our Frequently Asked Questions and Technical Notes. SOURCE: Bureau of Transportation Statistics There are three primary ATPI series:
All the ATPI series appearing in this release use the first quarter of 1995 as the base period against which price changes are measured. |