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Airport data

STL performance data

At STL (St. Louis, MO) in 2024, 1.07% of 65597 departures were cancelled and 19.9% left 15+ min late.

We hold 28 validated statistics for this airport, covering 1987 to 2024.

What this does not meanThis airport’s figures span 1 January 2018, when the DOT changed both which carriers must report (from 1% to half of one percent of domestic scheduled passenger revenue) and how flights are attributed (from the operating carrier to the marketing carrier). Figures either side of that date describe different populations of flights, so they are listed by year below rather than drawn as one continuous trend.

Traffic and reliability

  • At STL (St. Louis, MO) in 2024, 1.07% of 65597 departures were cancelled and 19.9% left 15+ min late.

    2024n=65597 departures

    Reporting carriers only; weather mix varies by region.

  • St Louis Lambert International (STL, St. Louis MO) boarded 7807362 passengers in CY2024, up 6.8% vs 2023 — #34 nationally.

    2024complete FAA enplanement census

  • At STL (St. Louis, MO) in 2023, 0.93% of 61885 departures were cancelled and 20.6% left 15+ min late.

    2023n=61885 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2022, 3.44% of 58985 departures were cancelled and 21.7% left 15+ min late.

    2022n=58985 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2021, 1.77% of 47532 departures were cancelled and 16.7% left 15+ min late.

    2021n=47532 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2020, 6.79% of 45426 departures were cancelled and 7.6% left 15+ min late.

    2020n=45426 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2019, 2.22% of 68401 departures were cancelled and 19.8% left 15+ min late.

    2019n=68401 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2018, 1.48% of 66197 departures were cancelled and 19.9% left 15+ min late.

    2018n=66197 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2017, 1.1% of 56988 departures were cancelled and 18.0% left 15+ min late.

    2017n=56988 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2016, 0.99% of 55570 departures were cancelled and 17.7% left 15+ min late.

    2016n=55570 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2015, 1.29% of 51277 departures were cancelled and 18.0% left 15+ min late.

    2015n=51277 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2014, 1.93% of 52418 departures were cancelled and 24.3% left 15+ min late.

    2014n=52418 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2013, 1.34% of 57031 departures were cancelled and 21.2% left 15+ min late.

    2013n=57031 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2012, 0.89% of 56271 departures were cancelled and 16.3% left 15+ min late.

    2012n=56271 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2011, 2.15% of 57700 departures were cancelled and 18.7% left 15+ min late.

    2011n=57700 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2010, 1.26% of 56933 departures were cancelled and 19.9% left 15+ min late.

    2010n=56933 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2009, 1.18% of 58868 departures were cancelled and 17.2% left 15+ min late.

    2009n=58868 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2008, 2.1% of 62733 departures were cancelled and 21.0% left 15+ min late.

    2008n=62733 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2007, 1.99% of 64864 departures were cancelled and 21.9% left 15+ min late.

    2007n=64864 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2006, 1.55% of 64327 departures were cancelled and 19.4% left 15+ min late.

    2006n=64327 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2005, 1.2% of 65977 departures were cancelled and 17.7% left 15+ min late.

    2005n=65977 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2004, 1.36% of 61259 departures were cancelled and 15.8% left 15+ min late.

    2004n=61259 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2003, 1.24% of 100904 departures were cancelled and 13.3% left 15+ min late.

    2003n=100904 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2002, 0.98% of 109826 departures were cancelled and 16.1% left 15+ min late.

    2002n=109826 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 2000, 2.23% of 169606 departures were cancelled and 24.0% left 15+ min late.

    2000n=169606 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 1989, 1.25% of 128097 departures were cancelled and 22.8% left 15+ min late.

    1989n=128097 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 1988, 0.95% of 127429 departures were cancelled and 22.2% left 15+ min late.

    1988n=127429 departures

    Reporting carriers only; weather mix varies by region.

  • At STL (St. Louis, MO) in 1987, 1.99% of 32097 departures were cancelled and 26.5% left 15+ min late.

    1987n=32097 departures

    Reporting carriers only; weather mix varies by region.

What this page does not tell you

  • Cancellation and delay rates are not directly comparable between airports. Route networks differ and so does the weather they fly through, and the source data says so.
  • Nothing here tells you what you are owed. That depends on the rule that applies to your situation, which is on the passenger rights pages.
  • These are counts and rates, not explanations. We have not tested why any figure moved.

Sources and provenance

Written by Row30 Data Desk. Data reviewed by Row30 Data Desk on July 26, 2026.

Underlying federal data covers 1987 to 2024.

Every figure above traces to a row in our statistics database: rel-airport-STL-2024. Each was validated against its source row before this page could publish.

Found an error? Tell us and it goes in the public log.

How this article was produced

Produced with AI assistance and reviewed by a named human before publishing. The pipeline that pulls the federal data and computes the statistics is conventional software, not a language model. Software is never credited as an author.

Before a page can publish, an automated check matches every number in the draft against the stored source row. If a digit does not reconcile, the article is blocked. The same check confirms the period is stated, the citation is carried verbatim, the licence permits the use, and no comparative claim outruns its stated uncertainty.

How the Row30 Data Desk works, including what it is not.

Our full editorial standards are on the editorial guidelines page.

Source: Federal Aviation Administration passenger boarding data; analysis by Row30.

Source: U.S. DOT Bureau of Transportation Statistics; analysis by Row30.