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Airport data

IAD performance data

At IAD (Washington, DC) in 2024, 1.35% of 52891 departures were cancelled and 17.7% left 15+ min late.

We hold 27 validated statistics for this airport, covering 1988 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 IAD (Washington, DC) in 2024, 1.35% of 52891 departures were cancelled and 17.7% left 15+ min late.

    2024n=52891 departures

    Reporting carriers only; weather mix varies by region.

  • Washington Dulles International (IAD, Dulles VA) boarded 13003234 passengers in CY2024, up 7.7% vs 2023 — #24 nationally.

    2024complete FAA enplanement census

  • At IAD (Washington, DC) in 2023, 1.15% of 49815 departures were cancelled and 18.1% left 15+ min late.

    2023n=49815 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2022, 2.44% of 56659 departures were cancelled and 19.1% left 15+ min late.

    2022n=56659 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2021, 1.48% of 50538 departures were cancelled and 17.5% left 15+ min late.

    2021n=50538 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2020, 5.86% of 41668 departures were cancelled and 10.4% left 15+ min late.

    2020n=41668 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2019, 1.43% of 69223 departures were cancelled and 18.8% left 15+ min late.

    2019n=69223 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2018, 1.56% of 68699 departures were cancelled and 18.7% left 15+ min late.

    2018n=68699 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2017, 0.98% of 36765 departures were cancelled and 16.8% left 15+ min late.

    2017n=36765 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2016, 1.51% of 34440 departures were cancelled and 15.7% left 15+ min late.

    2016n=34440 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2015, 1.52% of 37301 departures were cancelled and 20.1% left 15+ min late.

    2015n=37301 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2014, 3.5% of 58097 departures were cancelled and 26.3% left 15+ min late.

    2014n=58097 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2013, 2.3% of 73962 departures were cancelled and 24.1% left 15+ min late.

    2013n=73962 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2012, 2.23% of 76009 departures were cancelled and 20.5% left 15+ min late.

    2012n=76009 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2011, 2.35% of 76897 departures were cancelled and 21.2% left 15+ min late.

    2011n=76897 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2010, 2.62% of 76973 departures were cancelled and 16.9% left 15+ min late.

    2010n=76973 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2009, 1.98% of 66535 departures were cancelled and 20.0% left 15+ min late.

    2009n=66535 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2008, 2.73% of 76031 departures were cancelled and 27.5% left 15+ min late.

    2008n=76031 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2007, 3.21% of 91054 departures were cancelled and 27.2% left 15+ min late.

    2007n=91054 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2006, 2.32% of 96010 departures were cancelled and 26.1% left 15+ min late.

    2006n=96010 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2005, 2.0% of 122342 departures were cancelled and 22.0% left 15+ min late.

    2005n=122342 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2004, 2.15% of 132797 departures were cancelled and 21.2% left 15+ min late.

    2004n=132797 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2003, 2.66% of 103386 departures were cancelled and 19.0% left 15+ min late.

    2003n=103386 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2002, 1.28% of 37151 departures were cancelled and 16.6% left 15+ min late.

    2002n=37151 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 2000, 5.62% of 65462 departures were cancelled and 27.8% left 15+ min late.

    2000n=65462 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 1989, 1.49% of 50832 departures were cancelled and 25.8% left 15+ min late.

    1989n=50832 departures

    Reporting carriers only; weather mix varies by region.

  • At IAD (Washington, DC) in 1988, 1.05% of 50979 departures were cancelled and 19.6% left 15+ min late.

    1988n=50979 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 1988 to 2024.

Every figure above traces to a row in our statistics database: rel-airport-IAD-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.