DelayGuard combines an ML model trained on 2023 to mid-2025 BTS data (millions of flight records) with real-time data from weather services, live FAA advisories, and flight tracking APIs. The result is a delay probability score (0–100%) specific to your route, airline, departure hour, and date.
No model can foresee every crew issue, last-minute ATC decision or pop-up storm, so DelayGuard is built to be honest about risk. The v9 model uses only information available before departure and was tested on a later quarter of real US flights it never saw during training. Closer to departure, live weather and FAA advisories also feed into the score.
Yes — guest visitors get 3 free predictions. Free accounts get 3 predictions per day with risk bands (Low / Moderate / High / Very High Risk). The ML model behind every prediction is trained on nearly 4 million real US domestic flights (2023 to mid-2025 BTS data). Upgrading to Premium ($4.99/month or $39/year) unlocks unlimited predictions, exact probability percentages, full risk factor breakdown, saved flights with alerts, PDF/CSV export, and an ad-free experience. You can also buy one-off credit packs from $1.99.
DelayGuard covers all major US domestic airlines including American, Delta, United, Southwest, JetBlue, Alaska, Frontier, Allegiant, and more — operating across 80 US airports supported for predictions, with full delay guides for 22 major hubs. Spirit Airlines (NK) ceased all operations on May 2, 2026 and is no longer covered for active predictions. International routes are planned for a future update.
BTS records a cause on delayed flights, including late-arriving aircraft, the airline's own operations, the national airspace system, weather, and security. The BTS extract behind these pages does not include those cause shares, so no percentage is shown.
You can try 3 predictions as a guest from the homepage. A free account gets 3 predictions per day (reset at midnight UTC) plus the ability to save flights and set alerts. Premium and credit packs are managed from the Premium page.
See How It Works for the pilot-built pipeline, features, and data sources. For the product story, see About. You can also reach us at info@delayguard.ai.