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SEA security checkpoints

Security Screening 101

Fri, May 13, 2022

Editor's note: This blog has been updated (Jan 2026) to represent current information on security lane hours, checkpoint numbers, as well as Real ID requirements.It's finally here. That bucket list summer vacation that's gotten yo...

Overhead airport sign with a green header reading ‘GREEN Line to:’ and directional symbols pointing right toward Gates C, N, and X. The sign is mounted on a large metallic column beneath a ceiling with exposed structural elements. In the background, travelers stand near shuttle‑train doors along a corridor decorated with colorful wall art.

User’s Guide to the Train at SEA Airport

Fri, Oct 30, 2020

Translations are available in Amharic, Arabic, Chinese, Spanish, and Vietnamese:ይህን ጦማር/ብሎግ በአማርኛ ያንብቡ (PDF) هذه المدونة باللغة العربية (PDF) 阅读中文版博客 (PDF) Lea el blog en español (PDF) Đọc blog này bằng tiếng V...

Pathfinder at Sea-Tac airport.

Pathfinders: Superheroes of the Airport

Tue, Sep 18, 2018

Not all superheroes wear capes. Navigating Sea-Tac International Airport with 92 dining and retail options, two passenger drives, a massive parking garage containing rideshares, shuttles, and buses, and more than 30 airlines can b...

Wide view of a busy airport terminal with several Alaska Airlines aircraft parked at gates. Ground service vehicles and equipment surround the planes. In the background, an aircraft is landing on a runway while another is taking off. A large terminal building with curved roof sections stands in front of a forested area, and a distant city skyline is visible under a clear sky.

Federal Immigration Enforcement at SEA Airport

Current status: No additional federal officers have been deployed to SEA to backfill gaps in Transportation Security Administration (TSA) staffing.At Seattle-Tacoma International Airport (SEA), the safety and security of our commu...

Travelers watching a soccer match

Let’s Play SEA26 at SEA Airport

Seattle-Tacoma International Airport (SEA) is ready to welcome soccer fans from around the world this summer! This know before you go guide brings together the essentials for your travel to Seattle. SEA is open 24/7 to help you fr...

Worker with a construction hat that has the Upgrade SEA logo while a construction project is in progress in the background.

Construction Impacts

Updated July 24, 2026Know before you go. Stay up to date on airport construction and how it might impact your journey. Current construction impacts*PROJECTIMPACTED AREAIMPACT DESCRIPTIONC Concourse ExpansionC ConcourseC ...

Happy 76th Birthday SEA!

Happy Birthday to Seattle-Tacoma International Airport (SEA)! You're looking better than ever and there's so much bling in your future!ResourcesSEA 75th Anniversary Scavenger Hunt MapHistory of SEA photo library Passenger Vol...

Security Checkpoint Tips and Tricks at SEA Airport

You've got places to go and people to see. Your time is valuable and peak travel times can be unpredictable in the TSA Security lines. Bookmark these resources and plan ahead for your next trip to Seattle-Tacoma International...