Travel Trends

Estimated May 2019 U.S. Airline Traffic Data

A man at a departure gate
Estimated May 2019 U.S. Airline Traffic Data

U.S. airlines carried an estimated 77.4 million systemwide (domestic and international) scheduled service passengers in May 2019, seasonally-adjusted, according to the Bureau of Transportation Statistics’ (BTS) first estimate, up 0.2% from the April second estimate.

The BTS estimate of the May enplanement total of 77.4 million was down 0.2% from the all-time, seasonally-adjusted, reported high of 77.6 million reached in March 2019.

BTS estimated 67.7 million domestic passengers and 9.7 million international passengers on U.S. airlines flights in May.

U.S. airline traffic reports are filed monthly with BTS. See the tables that accompany this release on the BTS website for summary data since 2016 (Tables 1-24) and complete data since 2000.

This release is a statistical estimate based on U.S. airlines reported data through March. BTS will release a second estimate of U.S. airlines May air traffic on July 12, followed by a release of the reported data on Aug 15.

"Figure 1. Monthly Passengers on U.S. Scheduled Airlines (Domestic + International), Seasonally Adjusted May 2016 - May 2019 (April 2019-May 2019 estimated) Passengers in millions (Seasonally Adjusted)

Four measures of U.S. airlines passenger enplanements

Estimated May seasonally adjusted

  • System-wide enplanements were down 0.2% from the all-time, seasonally-adjusted, reported high of 77.6 million reached in March 2019.
  • Domestic enplanements were down 0.4% from the all-time, seasonally-adjusted, reported high of 68.0 million reached in March 2019.
  • International enplanements reached a new all-time, seasonally-adjusted, high based on the estimate compared to reported through March and estimate for May.

Reported March seasonally adjusted

  • System-wide enplanements (77.6M) were up 2.9% from the all-time, seasonally-adjusted, reported high of 75.4 million reached in December 2018.
  • Domestic enplanements (68.0M) were up 3% from the all-time, seasonally-adjusted, reported high of 66.0 million reached in December 2018.
  • International enplanements (9.6M) were up 1.5% from the all-time, seasonally-adjusted, reported high of 9.46 million reached in February 2019.

Estimated May unadjusted

  • Systemwide, domestic, and international enplanements reached a new estimated all-time high for the month of May.

Reported March unadjusted

  • Systemwide enplanements (80.1M) reached a new reported all-time high for the month of March.
  • Domestic enplanements (70.1M) reached a new reported all-time high for the month of March.
  • International enplanements (9.96M) reached a new reported all-time high for the month of March.

Table A. Seasonally Adjusted Estimated and Reported Passenger Enplanements Compared to Previous Time Periods, May Estimate

Seasonally AdjustedPassengers (in millions)Percent Change Compared to

Previous Month Previous Year Three Years Previous
May estimate 77.4 0.2% 4.6% 12.9%
March reported 77.6 3.1% 5.7% 15.3%

Export Table Data Table B. Unadjusted Estimated and Reported Passenger Enplanements Compared to Previous Time Periods, May Estimate

UnadjustedPassengers (in millions)Percent Change Compared to

Previous Year Two Years Previous Three Years Previous
May estimate 81.2 5.1% 10.2% 13.6%
March reported 80.1 5.0% 9.8% 13.5%



Logos, product and company names mentioned are the property of their respective owners.