Terms of Use

Last updated: July 8, 2026

By using Leave SEA (this site), you agree to these terms. If you don't agree, please don't use the site.

What this site is

Leave SEA is a free, informal departure-time planning tool for Seattle-Tacoma International Airport (SEA). It is provided "as is," for general planning purposes only, with no warranty of any kind, express or implied.

No guarantee of accuracy

All wait times, travel-time estimates, aircraft/boarding-time estimates, risk factors, and recommended departure times are predictions, not guarantees. They are based on general heuristics and third-party data — including the Port of Seattle's flight-status page, AeroDataBox, TomTom, Google Places and Routes, Open-Meteo, Ticketmaster, and public school-district and venue calendars — and may not reflect actual current conditions. We do not control the accuracy, availability, or uptime of these third-party sources and are not responsible for errors or omissions in the data they provide. See our Privacy Policy for more detail on data sources.

Limitation of liability

To the fullest extent permitted by law, the operator of this site is not liable for any missed flights, travel disruptions, costs, or other damages arising from your use of, or reliance on, this site. You use this tool at your own risk, and you are solely responsible for confirming flight times, security wait times, and travel plans through official sources (your airline, the TSA, and the Port of Seattle).

Not an official Port of Seattle, SEA Airport, or TSA service

This site is an independent, unofficial tool and is not affiliated with, endorsed by, or operated by the Port of Seattle, SEA Airport, or the Transportation Security Administration. Any data displayed that originates from those organizations remains their own.

Acceptable use

Please don't use this site to do anything unlawful, to disrupt or overload our infrastructure, or to scrape or republish the data it serves at high volume. We may restrict or block access for use that we reasonably believe harms the site or other users.

Changes

These terms may be updated from time to time. Continuing to use the site after a change means you accept the updated terms. Material changes will be reflected in the "Last updated" date above.

Questions

Questions about these terms can be directed to the site operator.