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Delay Predictor
A weighted scoring model that estimates delay risk using historical patterns, weather data, airport congestion, and turnaround time.
Overview
The Delay Predictor estimates how likely your flight is to be delayed before the airline tells you anything. It uses a weighted scoring model that combines multiple risk factors into a single delay probability — so you can plan accordingly.
How the Model Works
Four factors feed into the delay score, each weighted by historical predictive power:
- Historical patterns — How often this specific flight number has been delayed over the past 90 days. A flight that's late 40% of the time carries more risk than one that's late 5% of the time.
- Weather conditions — Current and forecasted weather at both origin and destination airports. Thunderstorms, low visibility, wind shear, and winter weather all increase the score.
- Airport congestion — Real-time traffic levels at the airport. High departure volume, ground stops, and traffic management programs raise delay risk.
- Turnaround risk — Whether the inbound aircraft is already delayed. If your plane is coming from a city with weather problems, your flight is at risk even if your airport is clear.
Reading the Score
The predictor shows a risk level: Low (under 20%), Moderate (20-50%), or High (above 50%). You'll also see which factor is contributing most, so you understand why the prediction is what it is.
Key Details
- Navigator gets basic scoring. Executive and Black get the full model with historical breakdowns.
- Predictions update continuously as departure approaches.
Tips
- Check the predictor the morning of your flight — that's when weather and congestion data become most accurate.
- High turnaround risk? Head to the airport anyway, but have a backup plan ready.
Last updated March 22, 2026
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