Flight Check

Privacy Policy

Last updated: September 23, 2025

Flight Check (“we,” “our,” or “us”) operates flightcheck.live. This Privacy Policy explains what information we collect, how we use it, and your choices. By using the site, you agree to the practices described here.

1. Information We Collect

Information you provide

  • Account registration: email address when you create an account or sign in.
  • Flight briefings: email address, flight number, and travel date when you request a briefing.
  • Contact form: email address and message content when you reach out.
  • Saved airports / watchlist: airports and routes you choose to save to your account.

Information collected automatically

  • Usage data: pages visited, features used, clicks, and session duration via PostHog analytics.
  • Device and browser data: browser type, operating system, screen size, and IP address.
  • Cookies and similar technologies: used for authentication, preferences, and analytics. See Section 4.

2. How We Use Your Information

  • To deliver flight briefings and day-of delay alerts to your email.
  • To authenticate your account and maintain your saved preferences.
  • To improve site features, fix bugs, and understand how travelers use Flight Check.
  • To respond to contact form submissions.
  • To serve relevant advertisements through Google AdSense (see Section 5).
  • To comply with legal obligations.

We do not sell your personal information to third parties.

3. Data Storage and Security

Your data is stored in Supabase, a secure cloud database platform. Authentication is handled by Supabase Auth, which uses industry-standard encryption. Transactional emails are delivered via Resend. We implement reasonable technical and organizational measures to protect your information, though no system is 100% secure.

4. Cookies

We use cookies and similar tracking technologies for:

  • Authentication: keeping you signed in between sessions.
  • Analytics: PostHog uses cookies to understand how visitors use the site.
  • Advertising: Google AdSense uses cookies to serve personalized ads based on your browsing history. You can opt out at google.com/settings/ads.

You can disable cookies in your browser settings, but some features (such as staying signed in) will not work without them.

5. Advertising (Google AdSense)

Flight Check displays ads through Google AdSense. Google uses cookies and device identifiers to show ads based on your prior visits to our site and other sites on the web. Google’s use of advertising cookies is governed by the Google Privacy Policy.

To opt out of personalized advertising, visit aboutads.info/choices or use the Google Analytics Opt-out Browser Add-on. You can also manage your ad settings at google.com/settings/ads.

6. Third-Party Services

We use the following third-party services, each governed by their own privacy policies:

  • Supabase — database and authentication
  • PostHog — product analytics
  • Resend — transactional email delivery
  • Google AdSense — advertising
  • Vercel — hosting and performance analytics

Flight Check also displays publicly available flight data sourced from the BTS, DOT, FAA, NOAA, and TSA. This data is not personally identifiable.

7. Your Rights and Choices

  • Access and deletion: You may request a copy of your personal data or ask us to delete your account by contacting us at the address below.
  • Email opt-out: Every briefing email includes an unsubscribe link. You can also stop receiving emails by deleting your account.
  • Cookie opt-out: Adjust your browser settings or use the ad opt-out links in Section 5.
  • California residents (CCPA): You have the right to know what personal information we collect, request deletion, and opt out of any sale of personal information. We do not sell personal information.
  • EEA / UK residents (GDPR): You have rights of access, rectification, erasure, restriction, and portability. To exercise these rights, contact us below.

8. Children’s Privacy

Flight Check is not directed to children under 13, and we do not knowingly collect personal information from children. If you believe a child has provided us personal information, please contact us and we will delete it.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with a revised “last updated” date. Continued use of the site after changes constitutes acceptance of the updated policy.

10. Contact

Questions or requests regarding this policy? Use our contact form or email us at hello@flightcheck.live.