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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.

TagRunways(144)

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  • SEA-TAC Aerial w cargo 1981

    Aerial photograph looking northward over Sea-Tac Airport showing the main terminal complex, satellite concourses, apron areas, runways, and Puget Sound visible in the background. A large surface parking lot, access roads, and adjacent commercial/hotel buildings are visible in the foreground; vehicle styles and airport layout suggest the photograph dates from the early-to-mid 1970s.
    TagsCargo, History, Runways, Sea-Tac AirportFolderRunways
  • Sea-Tac Airport Aerial View During Terminal Expansion Construction

    Black-and-white aerial photograph showing a large airport terminal complex with a distinctive circular roadway/structure under active construction in the foreground. Jet aircraft are visible at gates in the background, and large parking lots and excavation work are visible, suggesting a significant expansion or renovation project.
    TagsAirport Expansion, Construction, Runways, Sea-Tac AirportFolderRunways
  • Sea-Tac Airport Satellite View Showing Parallel Runways and Terminal Complex

    Google Earth satellite image of Seattle-Tacoma International Airport (Sea-Tac), showing its parallel runway configuration, terminal complex on the east side, and surrounding suburban neighborhoods in King County, Washington. The image is credited to Google Earth and the U.S. Geological Survey, with a scale bar indicating approximately 1 mile.
    TagsKing County, Runways, Sea-Tac AirportFolderRunways
  • Sea-Tac Airport Two Parallel Runways Satellite View

    Google Earth satellite image showing an airport with two parallel runways oriented roughly north-south, surrounded by dense residential and commercial development on all sides. The terminal complex and taxiways are visible on the east side of the runways; a scale bar indicates approximately 1 mile across the image.
    TagsRunways, Sea-Tac Airport, Second Runway, Tango TaxiwayFolderRunways
  • Sea-Tac Airport Third Runway Aerial Overlay

    Aerial satellite view of Seattle-Tacoma International Airport (Sea-Tac) showing the runway complex and taxiway system, with a red-highlighted rectangular area marked on one of the runway sections. The Airport Expressway and terminal area are visible in the lower portion of the image.
    TagsAirport Expansion, Runways, Sea-Tac Airport, Third RunwayFolderRunways
  • Sea-Tac Airport Vicinity Map With Phase 1 Construction and Port Sites

    Aerial map of Seattle-Tacoma International Airport identifying labeled construction and port sites (P-1 through P-6, including P-3a and P-3b) with Phase 1 Construction Sites outlined in yellow and Port Sites P-4 and P-5 outlined in red. The map shows three parallel runways (16R-34L, 16C-34C, 16L-34R), surrounding roads including Highway 509, Highway 518, and Pacific Highway, and the Port Property Boundary marked with a dashed white line.
    TagsConstruction, Map, Port Of Seattle, Runways, Sea-Tac AirportFolderRunways
  • Sea-Tac Airport Three Parallel Runway Diagram

    Aerial diagram of Seattle-Tacoma International Airport (Sea-Tac) showing three parallel runway pairs labeled 16L/34R, 16C/34C, and 16R/34L, with runway lengths annotated: 11,901', 9,426', and 8,500' respectively. A compass rose is visible in the upper right corner.
    TagsAirport Layout Plans, Map, Runways, Sea-Tac AirportFolderRunways
  • Airport Runway Layout Diagram (For Illustration Purposes Only) — Terminal, Tower, Customs, and Mid-Field Cargo Complex

    This is an airport diagram showing multiple runways including one labeled 10502 x 199 feet and another 9500 x 150 feet, with facilities marked including a Main Terminal, U.S. Customs, Tower, Mid-Field Cargo Complex, and General Aviation Parking. Runway end identifiers visible include 10, 28, 15R, 33L, 33R, and 75L, consistent with a large international airport layout, though no airport name or ICAO/IATA code is explicitly shown.
    TagsAirport Layout Plans, History, Map, Runways, Sea-Tac AirportFolderRunways
  • Center Runway Reconstruction

    The Port of Seattle completed reconstruction of the center runway (designated as 16C/34C) at Seattle-Tacoma International Airport in 2015. The runway was originally built in 1969 and had some brief closures during 2016 in order to complete adjoining projects with taxiways and blast pads. The project included installation of a new LED runway lighting system and an
    CategoriesFrom The Web, History TagsHistory, Port Of Seattle, Runways, Sea-Tac Airport
  • 2019-06-01

    Airport basics | Port Of Seattle

    Seattle-Tacoma International Airport handled 49.8 million passengers and 438,391 aircraft operations in 2018, ranking 8th in the U.S. by passenger volume. A noise compatibility study forecasted total annual aircraft operations to grow from approximately 301,870 in 2009 to 399,200 by 2021, driven by increases in both domestic and international air carrier activity. The airport operates three category IIIb certified runways and is dominated by Alaska Airlines, which carries over 50% of its passengers.
    TagsAlaska Air, Port Of Seattle, Runways, Sea-Tac Airport, StatisticsFolderSP #2

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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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