U.S. airlines carried 84.7 million systemwide (domestic and international) scheduled service passengers in May 2026, according to the Bureau of Transportation Statistics (BTS). When adjusted for seasonality, May enplanements are up 0.1% from April and down 3.2% from the all-time high reached in June 2024.

BTS reported 73.8 million domestic passengers and 10.9 million international passengers on U.S. airlines flights in May, not adjusting for seasonality.

Systemwide enplanements (84.7M) were down 2.7% from the all-time May high (87.1) reached in 2024. Domestic enplanements (73.8M) were down 2.7% from the all-time May high (75.8) reached in 2024. International enplanements (10.9M) were down 2.9% from the all-time May high (11.3) reached in 2024.

 

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