Sourced developments at US airports: what the FAA reports at every airport, and what we measure and our model forecasts at the busiest ones.
Partly stale · checked FAA NAS status 222 hstaleForecast cycle 88 minLightning 222 hstaleWeather observations no datastaleFAA surface data 1 minFAA flight data 2 min
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Tailodds’ model gives the 55 departures scheduled from Fort Lauderdale 3–6 PM Friday an average 45% chance of leaving 15+ minutes late. With calm weather the same flights would average 29%. From the 4:00 AM EST forecast (model famA-fc-v3+famB-sd-v4i). This is a forecast, not a report of delays.
Probability 45%Horizon 10.0 hModel famA-fc-v3+famB-sd-v4i
Tailodds’ model gives the 63 departures scheduled from Fort Lauderdale noon–3 PM Friday an average 44% chance of leaving 15+ minutes late. With calm weather the same flights would average 24%. From the 4:00 AM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Tailodds’ model gives the 73 departures scheduled from Fort Lauderdale 9 AM–noon Friday an average 40% chance of leaving 15+ minutes late. With calm weather the same flights would average 20%. From the 4:00 AM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of 13 arrivals that landed between 10:33 PM and 11:33 PM EST, 6 reached the gate at least 15 minutes late. Typically 27% of arrivals at Fort Lauderdale arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.
Of 20 departures that took off between 8:37 PM and 9:37 PM EST, 9 left at least 15 minutes late. Fort Lauderdale typically sees 52% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 PM hour). Measured by Tailodds from FAA flight data against airline schedules.
Tailodds’ model gives the 15 departures scheduled from Fort Lauderdale 9 PM–midnight Thursday an average 68% chance of leaving 15+ minutes late. With calm weather the same flights would average 44%. From the 7:00 PM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
What changed: 67% → 67% since the 2:00 PM EST forecast (same model, same window)
Tailodds’ model gives the 75 departures scheduled from Fort Lauderdale 6–9 PM Thursday an average 67% chance of leaving 15+ minutes late. With calm weather the same flights would average 42%. From the 4:00 PM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
What changed: 57% → 56% since the 12:00 PM EST forecast (same model, same window)
Tailodds’ model gives the 56 departures scheduled from Fort Lauderdale 3–6 PM Thursday an average 56% chance of leaving 15+ minutes late. With calm weather the same flights would average 31%. From the 1:00 PM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of 17 arrivals that landed between 12:53 PM and 1:53 PM EST, 4 reached the gate at least 15 minutes late. Typically 27% of arrivals at Fort Lauderdale arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 30% for 31 minutes across 16 checks, each with at least 12 flights and current data.
Tailodds’ model gives the 65 departures scheduled from Fort Lauderdale noon–3 PM Thursday an average 43% chance of leaving 15+ minutes late. With calm weather the same flights would average 26%. From the 10:00 AM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of 22 departures that took off between 6:29 PM and 7:29 PM EST, 4 left at least 15 minutes late. Fort Lauderdale typically sees 40% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 6 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 30% for 31 minutes across 16 checks, each with at least 12 flights and current data.
Of 21 arrivals that landed between 11:15 PM and 12:15 AM EST, 11 reached the gate at least 15 minutes late. Typically 27% of arrivals at Fort Lauderdale arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.
Window 11:15 PM–12:15 AM ESTSample 21 flightsLate 52%Typical 27%
Source: Tailodds measurement of FAA flight data against airline schedulesTimeline (1)View FLL
Of 13 arrivals that landed between 11:56 PM and 12:56 AM EST, 10 reached the gate at least 15 minutes late. Typically 27% of arrivals at Fort Lauderdale arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.
Window 11:56 PM–12:56 AM ESTSample 13 flightsLate 77%Typical 27%
Of the 31 departures scheduled from Fort Lauderdale (FLL) between 8:27 PM and 9:57 PM EST, FAA flight plans name the aircraft for 28. For 3 of those, the aircraft’s previous flight into FLL is due at the gate less than 35 minutes before the scheduled departure, or after it (FAA arrival times or estimates plus the airport’s typical taxi time); 0 of those inbound flights have not taken off yet. Measured by Tailodds from FAA flight data; it does not mean each of these departures will leave late. The tight share has stayed at or below 12% for 31 minutes across 16 checks, each with current data.
Next 8:27 PM–9:57 PM ESTTight turns 3 of 28Share 11%
Of 29 departures that took off between 12:30 PM and 1:30 PM EST, 16 left at least 15 minutes late. Fort Lauderdale typically sees 33% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 1 PM hour). Measured by Tailodds from FAA flight data against airline schedules.
Tailodds’ model gives the 65 departures scheduled from Fort Lauderdale 6–9 PM Saturday an average 46% chance of leaving 15+ minutes late. With calm weather the same flights would average 43%. From the 5:00 PM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of 13 departures that took off between 4:01 PM and 5:01 PM EST, 3 left at least 15 minutes late. Fort Lauderdale typically sees 40% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 4 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 30% for 31 minutes across 16 checks, each with at least 12 flights and current data.
Tailodds’ model gives the 53 departures scheduled from Fort Lauderdale 3–6 PM Saturday an average 49% chance of leaving 15+ minutes late. With calm weather the same flights would average 33%. From the 10:00 AM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of 19 arrivals that landed between 11:18 PM and 12:18 AM EST, 13 reached the gate at least 15 minutes late. Typically 27% of arrivals at Fort Lauderdale arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.
Window 11:18 PM–12:18 AM ESTSample 19 flightsLate 68%Typical 27%
What changed: 72% → 71% since the 6:00 PM EST forecast (same model, same window)
Tailodds’ model gives the 16 departures scheduled from Fort Lauderdale 9 PM–midnight Friday an average 71% chance of leaving 15+ minutes late. With calm weather the same flights would average 49%. From the 7:00 PM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of the 39 departures scheduled from Fort Lauderdale (FLL) between 6:32 PM and 8:02 PM EST, FAA flight plans name the aircraft for 29. For 9 of those, the aircraft’s previous flight into FLL is due at the gate less than 35 minutes before the scheduled departure, or after it (FAA arrival times or estimates plus the airport’s typical taxi time); 2 of those inbound flights have not taken off yet. Measured by Tailodds from FAA flight data; it does not mean each of these departures will leave late.
Next 6:32 PM–8:02 PM ESTTight turns 9 of 29Share 31%
Source: Tailodds measurement of FAA flight plans and arrival estimates against airline schedulesTimeline (1)View FLL
What changed: 71% → 66% since the 4:00 PM EST forecast (same model, same window)
Tailodds’ model gives the 90 departures scheduled from Fort Lauderdale 6–9 PM Friday an average 66% chance of leaving 15+ minutes late. With calm weather the same flights would average 44%. From the 5:00 PM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of 12 arrivals that landed between 3:17 PM and 4:17 PM EST, 2 reached the gate at least 15 minutes late. Typically 27% of arrivals at Fort Lauderdale arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 30% for 31 minutes across 16 checks, each with at least 12 flights and current data.
Of 15 departures that took off between 3:17 PM and 4:17 PM EST, 9 left at least 15 minutes late. Fort Lauderdale typically sees 37% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 3 PM hour). Measured by Tailodds from FAA flight data against airline schedules.
What changed: 50% → 61% since the 11:00 AM EST forecast (same model, same window)
Tailodds’ model gives the 63 departures scheduled from Fort Lauderdale 3–6 PM Friday an average 61% chance of leaving 15+ minutes late. With calm weather the same flights would average 36%. From the 1:00 PM EST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
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