Sourced developments at US airports: what the FAA reports at every airport, and what we measure and our model forecasts at the busiest ones.
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Tailodds’ model gives the 36 departures scheduled from Salt Lake City noon–3 PM Friday an average 28% chance of leaving 15+ minutes late. With calm weather the same flights would average 18%. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Tailodds’ model gives the 36 departures scheduled from Salt Lake City noon–3 PM Friday an average 48% chance of leaving 15+ minutes late. With calm weather the same flights would average 19%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of 19 arrivals that landed between 9:52 PM and 10:52 PM MST, 10 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.
1 update · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 18 arrivals that landed between 9:04 PM and 10:04 PM MST, 3 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City 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 25% for 31 minutes across 16 checks, each with at least 12 flights and current data.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 16 arrivals that landed between 8:02 PM and 9:02 PM MST, 9 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 22 departures that took off between 9:17 AM and 10:17 AM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 11% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 21% for 31 minutes across 16 checks, each with at least 12 flights and current data.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 13 departures that took off between 8:24 AM and 9:24 AM MST, 7 left at least 15 minutes late. Salt Lake City typically sees 8% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 8 AM hour). Measured by Tailodds from FAA flight data against airline schedules.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Tailodds’ model gives the 38 departures scheduled from Salt Lake City noon–3 PM Tuesday an average 19% chance of leaving 15+ minutes late. With calm weather the same flights would average 13%. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Tailodds’ model gives the 38 departures scheduled from Salt Lake City noon–3 PM Tuesday an average 41% chance of leaving 15+ minutes late. With calm weather the same flights would average 13%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of 24 arrivals that landed between 1:40 PM and 2:40 PM MST, 0 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City 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 25% for 31 minutes across 16 checks, each with at least 12 flights and current data.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 13 arrivals that landed between 12:42 PM and 1:42 PM MST, 7 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 28 departures that took off between 9:29 AM and 10:29 AM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 11% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 21% for 31 minutes across 16 checks, each with at least 12 flights and current data.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 14 departures that took off between 8:26 AM and 9:26 AM MST, 7 left at least 15 minutes late. Salt Lake City typically sees 8% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 8 AM hour). Measured by Tailodds from FAA flight data against airline schedules.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Tailodds’ model gives the 36 departures scheduled from Salt Lake City noon–3 PM Monday an average 24% chance of leaving 15+ minutes late. With calm weather the same flights would average 17%. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Tailodds’ model gives the 36 departures scheduled from Salt Lake City noon–3 PM Monday an average 49% chance of leaving 15+ minutes late. With calm weather the same flights would average 17%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of 28 departures that took off between 5:11 PM and 6:11 PM MST, 4 left at least 15 minutes late. Salt Lake City typically sees 19% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 5 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 29% for 31 minutes across 16 checks, each with at least 12 flights and current data.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 12 departures that took off between 4:23 PM and 5:23 PM MST, 7 left at least 15 minutes late. Salt Lake City typically sees 22% 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.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 18 departures that took off between 2:49 PM and 3:49 PM MST, 0 left at least 15 minutes late. Salt Lake City typically sees 16% 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. The late share has stayed at or below 26% for 31 minutes across 16 checks, each with at least 12 flights and current data.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 23 departures that took off between 1:33 PM and 2:33 PM MST, 10 left at least 15 minutes late. Salt Lake City typically sees 23% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 2 PM hour). Measured by Tailodds from FAA flight data against airline schedules.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 16 departures that took off between 1:18 PM and 2:18 PM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 16% 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. The late share has stayed at or below 26% for 31 minutes across 16 checks, each with at least 12 flights and current data.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 19 departures that took off between 11:45 AM and 12:45 PM MST, 9 left at least 15 minutes late. Salt Lake City typically sees 18% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 12 PM hour). Measured by Tailodds from FAA flight data against airline schedules.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Tailodds’ model gives the 41 departures scheduled from Salt Lake City noon–3 PM Saturday an average 24% chance of leaving 15+ minutes late. With calm weather the same flights would average 20%. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Tailodds’ model gives the 41 departures scheduled from Salt Lake City noon–3 PM Saturday an average 44% chance of leaving 15+ minutes late. With calm weather the same flights would average 20%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.
Of 16 departures that took off between 9:32 PM and 10:32 PM MST, 8 left at least 15 minutes late. Salt Lake City typically sees 14% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 10 PM hour). Measured by Tailodds from FAA flight data against airline schedules.
1 update · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
Of 26 departures that took off between 2:53 PM and 3:53 PM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 16% 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. The late share has stayed at or below 26% for 31 minutes across 16 checks, each with at least 12 flights and current data.
2 updates · Source: Tailodds measurement of FAA flight data against airline schedulesOpen event ›View SLC
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Observed
We measured it from FAA flight data: window, sample size and the typical level are on the item.
Forecast
Our model predicts it, with its probability, target, horizon and model version. It has not happened. How accurate is it?