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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.

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  • 2024-11-14

    Port Of Seattle signatory lease and operating agreement 2025–2034

    This is a draft Signatory Lease and Operating Agreement between the Port of Seattle and participating airlines for the operation of Seattle-Tacoma International Airport, covering the period 2025 through 2034. The agreement outlines the terms under which airlines may use airport facilities including gates, terminals, airfields, baggage systems, and ticket counters, along with the associated rates and fees for each. It also establishes airline rights and responsibilities regarding capital improvements, gate assignments, and facility use at Sea-Tac Airport.
    Tagscapital improvements, Port Of Seattle, Port Of Seattle Commission, Sea-Tac AirportFolderMeetings
  • 2024-11-12

    Sea-Tac’s art collection is a visual treat for holiday travelers

    By  Gemma Wilson Seattle Times arts and culture writer Most of the time, riding an airport escalator gets you from point A to point B while offering a break from hauling suitcases or a chance to triple-check your airline ticket. But if you’re riding the escalator up into Seattle-Tacoma International Airport’s bright, newly renovated N
    CategoriesFrom The Web TagsSea-Tac Airport, Seattle Times
  • 2024-11-12

    Port Of Seattle Environment & Sustainability Center of Expertise 2025 Budget Overview — Slide 171 (November 12, 2024 RM Packet)

    A budget overview slide showing the Port's Environment and Sustainability Center of Expertise 2025 budget totaling $22.7M, broken down by category including Permitting/Compliance/Habitat (39%), Climate & Sustainability (23%), Stormwater (16%), Aviation Noise (14%), and Maritime Remediation (8%), with separate breakdowns for Maritime E&S and Aviation E&S divisions. Aviation E&S includes a Noise budget line of $3.3M, relevant to Sea-Tac Airport noise policy.
    TagsBudget, Noise, Port Of Seattle, Sea-Tac AirportFolderMeetings
  • StART Letterhead

    Official header graphic for the StART (SEA Stakeholder Advisory Round Table), a noise-policy advisory body associated with Seattle-Tacoma International Airport (SEA). The banner displays the StART acronym with an airplane icon and the full name 'SEA Stakeholder Advisory Round Table' on a dark green background.
    CategoriesCorrespondence TagsAdvisory Committees, Logo, Sea-Tac Airport, StARTFolderStART
  • Delta Air Lines Boeing 737-900 Taxis at Sea-Tac Airport

    A Delta Air Lines Boeing 737-900 bearing registration number N838DN taxis on the airfield at Sea-Tac Airport. The image is credited to photographer Anthony Bolante for the Puget Sound Business Journal (PSBJ), as noted in the watermark.
    Tagsaircraft, Delta, Puget Sound Business Journal, Sea-Tac AirportFolderAirlines
  • 2024-10-31

    Airport Terminal with Control Tower and Aircraft Departure

    A Delta Air Lines aircraft departs over the main terminal at Seattle-Tacoma International Airport (SEA-TAC), with Alaska Airlines check-in curb areas visible below. The busy departures roadway shows a posted 20 mph speed limit, with signage for Alaska, Frontier, and Sun Country airlines visible on the terminal facade.
    TagsAir Traffic Control, aircraft, Alaska Air, Delta, Sea-Tac Airport, TerminalFolderTerminal
  • 2024-10-23

    StART Meeting Agenda — October 23, 2024

    Agenda for the SEA Stakeholder Advisory Round Table (StART) meeting held October 23, 2024, 5:00–7:00 pm via Zoom. Topics include an update on the Sustainable Airport Master Plan Draft Environmental Assessment, an analysis of aircraft go-arounds at SEA, and approval of the State Policy Agenda; next meeting tentatively scheduled December 18, 2024.
    CategoriesMeetings TagsSAMP Draft EA, Sea-Tac Airport, StART, Sustainable Airport Master PlanFolderStART
  • 2024-10-22

    Sea-Tac Airport Capital Funding Breakdown 2025–2029 — Draft Plan of Finance (Page 21)

    A presentation slide showing the Airport Capital Funding breakdown of $4,918.9 million for 2025–2029, with the largest source being Future Revenue Bond Proceeds at $3,395.9 million. The slide notes that 92% is funded from operating cash flow and revenue bonds, with $364M in capital grants (AIP) allocated to projects including S Concourse Evolution, Noise Insulation projects, and Checkpoint 1 Relocation.
    TagsAIP, Airport Improvement Program, Property Tax Levy, Sea-Tac Airport, Tax LevyFolderTax Levy 2025
  • 2024-10-22

    Port Of Seattle 2025 Community Programs Budget Table — Draft Plan of Finance Property Tax Levy (Page 34)

    A budget table from the Port of Seattle presenting 2025 Community Programs funding as of September 2024, showing 19 line-item programs with budgets from 2022–2025. The Grand Total proposed 2025 budget is $19,621,000, with $12,334,000 (63%) funded by the levy; programs include the South King County Community Impact Fund, Duwamish Valley Community Equity Program, Workforce Development, and others related to Sea-Tac Airport operations.
    TagsBudget, Port Of Seattle, Property Tax Levy, Sea-Tac AirportFolderBudget 2025 Presentation
  • 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, Property Tax Levy, Sea-Tac Airport, Tax LevyFolderTax Levy 2025

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Upcoming Events

  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
    Ntnnp social media3

    For the past two years, more than 220 initiatives from 15 countries have declared September 13th as the International day for the ban of night flights at airports. In parallel, activists across Europe have been gathering for pyjama parties for night trains – coordinated in 2024 and 2025 by Back on Track and Stay Grounded.

    [...]
  • Burien Airport Committee Meeting September 15, 2026
    Add to CalendarMTuesday Sep 15: 6:00pm
    400 SW 152nd St, Burien, WA 98166
    Burien airport committee 15 sep 2026 agenda pdf pdf

    a) Part 150 Noise Study (Emily Inlow-Hood) — 15 minutes
    b) SAMP Update and Next Steps (Brian Davis and Sarah Moore) — 15 minutes
    c) Legislative Updates — 10 minutes
       • SCA (Sarah Moore)
       • Work with Sen. Orwall (Brian Davis)
    d) StART Reorganization (Jeff Harbaugh and Karen Veloria) — 10 minutes

    [...]

[See all...]


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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.
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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.
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