
Seattle Airport, officially known as Seattle-Tacoma International Airport, is an airport serving Seattle, Washington. The airport has been monitoring the potential impacts of 5G rollout on flights, with travellers advised to check with their airline regarding any delays or cancellations. As of April 2025, the airport is experiencing general departure and arrival delays, with traffic delays ranging from 15 minutes to 2 hours in length.
| Characteristics | Values |
|---|---|
| Name | Seattle-Tacoma International Airport |
| Date | 21 April 2025 |
| Time | 10:46 PM GMT+00:00 |
| Departure Delays | 1 hour and 46 minutes to 2 hours |
| Arrival Delays | 15 minutes or less |
| Causes of Delay | 5G roll out, TWY: DISABLED ACFT |
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What You'll Learn

Delays and cancellations
As of April 21, 2025, Seattle Airport experienced general departure delays due to TWY: DISABLED ACFT, causing gate hold and taxi delays of 1 hour and 46 minutes to 2 hours, with increasing delays. Arrival traffic faced airborne delays of 15 minutes or less.
It is recommended that travellers monitor the situation closely and stay in contact with their chosen airline to anticipate any last-minute changes to their flight schedule. While these delays can be frustrating, staying informed can help travellers make any necessary adjustments to their plans and better navigate the potential challenges posed by the current situation at Seattle Airport.
The airport advises travellers to refer to their website and social media platforms for the latest updates on flight statuses, security screenings, ground transportation, and other important travel-related information. By staying vigilant and proactive, travellers can minimise the impact of delays and cancellations on their overall travel experience.
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Federal Aviation Authority's 5G and Safety page
The Federal Aviation Authority's 5G and Safety page provides information on the potential impact of 5G roll-out on flights. The page includes updates on the collaboration between the FAA, the aerospace industry, and wireless communications companies to address the technical changes and ensure safe 5G deployment.
The page highlights the risk of 5G interference with aircraft radio altimeters, which could impact other safety equipment and systems such as navigation instruments, terrain awareness, and collision-avoidance systems. Radio altimeters provide critical data on an aircraft's height above the ground, and their accuracy and reliability are essential for safe operations.
To mitigate these risks, the FAA has issued multiple Airworthiness Directives, requiring airlines to upgrade their equipment or restrict the use of unequipped planes. These directives provide a framework to gather information and avoid potential effects on aviation safety equipment. The FAA has also collaborated with key stakeholders to identify steps that protect commercial air travel from disruption while enabling wireless service enhancements around airports.
The page includes specific directives for different aircraft models, such as the Boeing 737, 757/767, and 747/777, outlining the required retrofitting of radio altimeters to ensure safe operations in the 5G C-band environment. The FAA is working closely with the Federal Communications Commission and wireless companies to safely implement the 5G expansion, with a shared goal of enabling aviation and 5G to coexist safely.
The FAA's 5G and Safety page is a valuable resource for travellers and the aviation industry, providing the latest information and directives to ensure safe operations during the transition to 5G. It reflects the FAA's commitment to putting safety at the core of its mission and collaborating with stakeholders to address emerging challenges.
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Ground transportation
There are multiple options for ground transportation to and from Seattle-Tacoma (Sea-Tac) International Airport. The Link light rail takes 38 minutes to travel between the airport and downtown Seattle, with trains departing every 8-10 minutes for most of the day. The light rail station can be reached by following signs from the baggage claim area. A free electric shuttle service and a free Train-to-Plane shuttle service are available for those who do not wish to walk to the light rail station.
The King County Metro and Sound Transit operate bus routes that stop at SeaTac Airport. The Sound Transit express buses stop at the south end of the main terminal on the lower drive, while the King County Metro bus routes stop near the Link station on International Boulevard.
Taxis are also available at the airport, with both flat-rate and metered taxis stationed on the third floor of the parking garage. In addition, shuttle services are offered by Premier Airport Shuttle, providing transportation to various destinations in the Greater Puget Sound area, including Bellevue, Redmond, Kirkland, Tacoma, and Olympia. These shuttles can be booked online, and they offer shared rides with limited stops as well as private van services.
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Security screening and checkpoints
Passengers can expect to encounter security checkpoints upon entering the airport and at various points throughout the terminal. These checkpoints are staffed by trained security personnel who conduct screenings to ensure the safety and security of all individuals within the airport. Screening processes typically involve passing through metal detectors and having carry-on luggage x-rayed. Passengers may also be subject to additional screenings, including pat-downs or bag searches, which are implemented randomly or if a potential security concern is identified.
To ensure a smooth security screening process, Seattle Airport provides guidelines and recommendations for passengers. These include arriving at the airport early enough before their scheduled departure, typically suggested as two hours for domestic flights and three hours for international travel. Passengers are advised to have their boarding passes and identification readily available and to familiarise themselves with the list of prohibited items, ensuring they do not carry any such items in their luggage.
Additionally, Seattle Airport offers a range of services and amenities to assist passengers with security screening. This includes a mobile flight tracker that provides real-time updates on departure and arrival delays, helping travellers stay informed about potential delays or disruptions to their journeys. By following the airport's guidelines and staying updated on flight status, passengers can effectively navigate security screenings and checkpoints at Seattle Airport.
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Dining and retail
Seattle-Tacoma International Airport (SEA) offers a wide range of dining and retail options for travellers. The airport is home to an eclectic mix of over 40 dining options, including local and international cuisine, as well as a variety of retail shops.
For food and drinks, SEA Airport has something for every taste and dietary preference. From burgers and BBQ to sushi and salads, travellers can find what they're craving. There are also healthy and gluten-free options available. Some notable dining spots include P.F. Chang's, Pallino, Pei Wei, QDOBA, Rel’Lish Burger Lounge, Salty's at the SEA, Ballard Brew Hall, Bambuza Vietnam Kitchen & Bar, Caffé D’arte, Camden Food Co., Dish D’Lish, Evergreens, Floret by Café Flora, Greedy Cow Burger, Le Grand Comptoir, LouLou Market and Bar, Lucky Louie Fish Shack, Ma'ono, McDonald's, Mi Casa, and many more.
In addition to the diverse food offerings, SEA Airport also boasts a variety of retail options. Travellers can browse through bookstores, gift shops, designer brands, and local goods. The airport is in the midst of a long-term dining and retail redevelopment program aimed at increasing options for travellers and expanding access for small and local businesses. This includes the recently announced expansion of the C Concourse, which will add four new floors and bring 11 new dining and retail concessions featuring local and global brands.
Travellers are encouraged to arrive early and explore the diverse dining and retail offerings scattered throughout the airport. With options for every taste and budget, SEA Airport provides a unique experience that goes beyond the typical airport fare.
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Frequently asked questions
Yes, Seattle Airport is currently experiencing both general departure and arrival delays.
Departure delays are between 1 hour and 46 minutes and 2 hours in length and increasing. Arrival delays are airborne delays of 15 minutes or less.
Delays are due to TWY: DISABLED ACFT, causing Gate Hold and Taxi delays.






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