Skip to content
  • STNI
  • Statistics
    • Ops and Passengers
      • King County International Airport (Boeing Field) Annual Operations
    • Financials
    • Aviation fuel uplift in the State of Washington 2018 – 2025
      • Aviation Fuel Uplift at Sea-Tac Airport
    • Air Quality Monitoring
    • Flight Tracking
      • Flow and Flight Tracks
      • Five Year Comparison
      • Busiest Hours and Days
    • SEL Noise Reports & Graphs
      • About The Permanent Noise Monitors
      • Minutes of Quiet by Noise Monitor
      • Noise Events mapped
      • Noise Events (SEL)
    • Runways
    • Employees
    • Real Estate
      • Port Properties and Trees mapped
    • Parking
  • Events
  • Protest
    • Regular Events
    • Legislation 2026
    • Complain about a particular flight
    • Advocacy Organizations
    • Media Outlets
    • People
    • The Port of Seattle
      • Commission Meetings
      • Public Records Requests
      • StART
      • Highline Forum
    • Contact Your Electeds
  • Resources
    • FAQs
      • FAA Occurrences/Accidents/Indents
    • The unSustainable Airport Master Plan
      • SAMP NTP: 31 projects by the numbers
      • SEPA Draft EIS (2026)
      • SAMP Record of Decision/FONSI (2025)
      • SAMP Draft EA (October 2024)
      • 2018 Scoping
    • Port Packages
      • Port Package Property Costs
      • Port Packages mapped
      • The Port Package Explainer
      • So you want a (first-time) Port Package? Start here
      • Port Package Looker Upper
      • How do I determine if I have a Port Package or Avigation Easement?
      • Progress on Port Package Update legislation
      • Having a Port Package Problem?
      • Port Package Site Visit Follow-Up
    • Document Library
    • Explainers
      • The Airport Law Cheat Sheet
      • The Grant Explainer
    • External Articles
    • History
      • Timeline
      • The Sea-Tac Communities Plan
        • Sea-Tac Communities Plan – Planning Maps
      • PSRC Third Runway Decision Process
    • Studies
    • Videos
  • Stories
  • Mission
  • Subscribe
  • Contact
Scroll down to content

Get InformedStay Informedx

I understand that you will never share my information with anyone, you will only use it to keep me updated on relevant events and that I may unsubscribe at any time.

STNI

STNISea-Tac Noise.Info

  • Solve for Sea-Tac. Solve for every airport.
  • Since 2016, working to obtain justice for everyone living under the flight path.
  • Less Noise. Cleaner Air. Better Public Health. Compensation.
  • Everything you think you know about the airport is wrong.

TagAirport Expansion(155)

Advanced Search Options

  • Dates
  • Media
    • External Articles
    • Images
    • PDFs
    • Video
    • Audio
  • Order By
  • Cd9464C39116769B1F1C213A3A63Bc935C5B889E

    D.C. Circuit Court of Appeals Cracks Down on FAA Compliance with NEPA

    A legal article categorized under 'Aviation & Airport' reports that the D.C. Circuit Court of Appeals cracked down on FAA compliance with NEPA (National Environmental Policy Act). The publication appears to be from a legal news outlet with a red 'IL' or 'JL' logo.
    CategoriesLitigation, News Stories TagsAirport Expansion, Airport Law, Airport Noise Law, ANCA, Aviation Committees, Aviation Emissions
  • Djc Third Runway Banner

    Sea-Tac Airport third runway project banner

    A stylized graphic depicting an airplane silhouetted against a sunset sky approaching a runway lined with approach lights. The text 'Sea-Tac Airport Third Runway' is displayed prominently, indicating this image relates to the third runway project at Seattle-Tacoma International Airport.
    TagsAirport Expansion, Runways, Sea-Tac Airport, Third Runway
  • 2025-10-28

    Airport Capital Spending (2025 $)

    A line graph showing CPI-adjusted airport capital spending in millions of 2025 dollars from 1998 through 2030 (with years 2025–2030 as forecasts), alongside a flat orange reference line representing average real spending from 1998–2024 at approximately $470 million. Spending peaked around 2002–2005 near $800 million, dropped to a low near $125 million in 2012, recovered to approximately $750 million by 2018–2019, and is forecast to peak near $975 million around 2027 before declining.
    CategoriesExplainers TagsAIP, Airport Expansion, Airport Improvement Program, Budget, capital improvements, Forecast, Sea-Tac Airport
  • 2025-08-12

    Sea-Tac Airport 2025 Capital Expenditures Financial Summary — RM Packet Page 252

    A financial summary table from what appears to be a Seattle-Tacoma International Airport board or budget report (page 252 of 292) detailing 2025 capital expenditures, showing projects including C Concourse Expansion, SEA Gateway, Post IAF Airline Realignment, and others, with total spending of approximately $806.9M forecast against a $816.3M budget. Footnotes explain variances for each major project.
    TagsAirport Expansion, Budget, capital improvements, Port Of Seattle, Sea-Tac Airport
  • Sea-Tac Airport International Arrivals Facility Aerial Planning Rendering

    An aerial architectural rendering or composite photograph showing a large international airport with multiple terminals, gates, runways, and what appears to be a new terminal connector or people-mover structure highlighted in lighter tones against a desaturated background. The image style suggests it is a planning or proposal visualization, possibly for a terminal expansion project.
    TagsAirport Expansion, International Arrivals Facility, Sea-Tac Airport, Terminal
  • 2024-12-21

    Construction Site with Steel Beam Installation

    A crane lifts the final steel beam during a topping-out ceremony, decorated with an evergreen tree and an American flag — a traditional construction milestone. A large crowd of workers in high-visibility vests and hard hats gather to observe the event at an active multi-story construction site.
    TagsAirport, Airport Expansion, Construction
  • 2024-10-22

    Sea-Tac Airport Capital Spending Projections 2025–2029 — Slide 20 (Draft Plan of Finance, October 2024)

    A bar chart from a Sea-Tac Airport presentation (slide 18) projects $4.9 billion in airport capital spending from 2025 through 2029, broken down annually into Mega Projects and Other Projects. Annual totals range from $863.8M (2029) to $1,138.5M (2026), with a reference line marking the 20-year historical maximum of $579.1M.
    TagsAirport Expansion, pos_sm_2024_10_22, Property Tax Levy, Sea-Tac Airport, Tax Levy
  • 2024-06-25

    SR 509, I-5 to 24th Avenue S. (Stage 1b)

    Aerial rendering showing the planned SR 509 Expressway extension (Stage 1b) connecting I-5 to 24th Avenue S. in the SeaTac/Kent area of Washington State. The image labels key project elements including the new SR 509 Expressway alignment, a toll point near S. 208th St, southbound and northbound SR 509 ramps, a southbound I-5 off-ramp, 24th Ave S. interchange ramps, a future light rail corridor, and the S. 216th St overpass.
    CategoriesResources TagsAirport, Airport Development Fund, Airport Expansion, Port Of Seattle
  • 2024-06-25

    SR 509, I-5 to 24th Avenue S. (Stage 1b)

    A planning rendering for SR 509, Stage 1b, showing proposed highway improvements between I-5 and 24th Avenue S. in the Kent/Des Moines area. Labeled features include new northbound and southbound I-5/SR 509 ramp connections, a new Veterans Drive I-5 undercrossing and SR 516 interchange improvements, wider sidewalks and shared use paths, and the future SoundTransit Kent/Des Moines Station along SR 99.
    TagsAirport, Airport Development Fund, Airport Expansion, Port Of Seattle
  • 2024-06-25

    SR 509, I-5 to 24th Avenue S. (Stage 1b)

    An aerial rendering depicting the SR 509 Expressway extension (Stage 1b) in SeaTac, Washington, showing planned infrastructure including a new 24th Avenue South interchange, new 34th Avenue S connection to I-5, a reconfigured S 208th Street, a toll point on SR 509, and proximity to the Sound Transit Angle Lake Station. The project corridor runs east-west connecting I-5 to existing SR 509 near Angle Lake.
    CategoriesResources TagsAirport, Airport Expansion, Airport Layout Plans, seatac, Sound Transit

Posts pagination

Page 1 Page 2 Page 3 Page 4 Page 5 … Page 16
Sidebar On/Off

Help study childhood asthma. Get free HEPA filter!

read more...

Issues

Sea-Tac Airport is currently undergoing the largest and longest expansion in its history, collectively known as the Sustainable Airport Master Plan (SAMP). Some of it you can already hear, but you’re probably not aware of what it all means. Here’s what you need to know.
read more...

Read This!

As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.
continue...

The Podcast!

Subscribe to the only podcast devoted to policies, politics, history, impacts for people living under the flight path everywhere. It’s definitely not just about noise!
  • Sea-Tac Noise.Info
  • Connect with STNI

    • Subscribe
    • Port Package Problem?
    • Donate
    • Podcast
    • Socials
      • Facebook
      • X (Twitter)
      • Bluesky
      • Instagram

    "Cantwell, Smith secure $9.1 million for Noise Mitigation in Highline Public Schools" — , 2019

  • Learn

    • Frequently Asked Questions
    • Explainers
    • Youtube
    • Research Requests
    • Make a complaint
  • Goals

    Fulfill the promises of 1976:
    • Compensation
    • Reduced noise
    • Improved air quality
    • Environmental remediation
Login/Register
©2026•Data Privacy

Message

We use cookies to provide basic functionality. We also provide access to search engines in order to provide site analytics. We do not sell or share your data.
V V