U.S. Airlines Carried 14% More Passengers in April Than in March

U.S. airlines carried 47.2 million systemwide (domestic and international) scheduled service passengers in April 2021, seasonally-adjusted, according to the Bureau of Transportation Statistics (BTS), up 14.3% from March.

BTS reported 43.2 million domestic passengers and 4.0 million international passengers on U.S. airlines flights in April.

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.

Two measures of U.S. airlines passenger enplanements

April seasonally-adjusted

  • System-wide enplanements (47.2M) were down 40.9% from the all-time high of 79.8 million reached in January 2020.
  • Domestic enplanements (43.2M) were down 38.4% from the all-time high of 70.0 million reached in January 2020.
  • International enplanements (4M) were down 59% from the all-time high of 9.75 million reached in January 2020. 

April unadjusted 

  • Systemwide enplanements (47.8M) were down 37.5% from the all-time April high (76.4M) reached in 2019 and up 11.8% from March (42.8M).
  • Domestic enplanements (43.8M) were down 34.6% from the all-time April high (66.9M) reached in 2019 and up 11.4% from March (39.3M).
  • International enplanements (4.0M) were down 57.9% from the all-time April high (9.5M) reached in 2019 and up 16.0% from March (3.4M).

Table A. Seasonally Adjusted Passenger Enplanements Compared to Previous Time Periods

Seasonally Adjusted Passengers (in millions) Percent Change Compared to
Previous Month Previous Year Three Years Previous
April 47.2 14.30% 1475.10% -36.10%

Table B. Unadjusted Passenger Enplanements Compared to Previous Time Periods

Unadjusted Passengers (in millions) Percent Change Compared to
Previous Year Two Years Previous Three Years Previous
April 47.8 1485.70% -37.50% -35.10%