Between August 2024 and July 2025, 257 million passengers flew internationally to/from the US. Over 700,000 people did so daily. Traffic was 2% higher than for the 12 months to July 2024 and 6% higher than for the year to July 2019, before the pandemic struck. These findings are from examining all international routes using Department of Transportation data.

Returning to the August 2024 to July 2025 period, over 100 scheduled carriers operated. United Airlines was number one (37.7 million passengers), followed by American (37.6 million), Delta Air Lines (29.3 million), Air Canada (11.9 million), and JetBlue (11.0 million).

The US's Top 10 International Airport Pairs

The following analysis looks at airport pairs —not city pairs. The results are therefore necessarily a bit dif

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