Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.
Flight timing & delays
Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.
Times are local to the departure airport of each flight; both directions are combined.
US domestic sectors recorded by BTS
Source: the US BTS · Oct 12, 2024 → Jul 31, 2026
Lowest average delay07:00–08:001.2min · 364 recorded · 363 measured
Gap to highest-delay hour13.9min07:00 ↔ 16:00
Recorded flights2,713AUS–RDU
Departure hour
On-time departuresPartial coverage: only airlines that report on-time data to the US DOT
100.050.00.0
00:0003:0006:0009:0012:0015:0018:0021:00
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
15.17.60.0
00:0003:0006:0009:0012:0015:0018:0021:00
Hover, tap or focus a point to see its value, sample and source.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
4632320
00:0003:0006:0009:0012:0015:0018:0021:00
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View the figures
Departure hour
On-time departures
Average departure delay
With departure time
Recorded flights
00:00
No observations
—
—
—
01:00
No observations
—
—
—
02:00
No observations
—
—
—
03:00
No observations
—
—
—
04:00
No observations
—
—
—
05:00
Fewer than 200 measured departures
—
67
67
06:00
Fewer than 200 measured departures
—
118
119
07:00
91.7%
1.2 min
363
364
08:00
Fewer than 200 measured departures
—
46
47
09:00
90.2%
4.4 min
460
463
10:00
Fewer than 200 measured departures
—
98
98
11:00
Fewer than 200 measured departures
—
81
81
12:00
Fewer than 200 measured departures
—
100
100
13:00
Fewer than 200 measured departures
—
105
107
14:00
Fewer than 200 measured departures
—
125
125
15:00
Fewer than 200 measured departures
—
195
197
16:00
65.9%
15.1 min
293
293
17:00
80.6%
9.4 min
201
202
18:00
Fewer than 200 measured departures
—
199
199
19:00
Fewer than 200 measured departures
—
141
141
20:00
Fewer than 200 measured departures
—
84
84
21:00
Fewer than 200 measured departures
—
25
26
22:00
No observations
—
—
—
23:00
No observations
—
—
—
Day of week
On-time departuresPartial coverage: only airlines that report on-time data to the US DOT
100.050.00.0
MonTueWedThuFriSatSun
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
16.68.30.0
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
4462230
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
72.8%
12.8 min
437
438
Tuesday
81.6%
9.9 min
353
353
Wednesday
81.6%
8.2 min
343
346
Thursday
79.4%
10.8 min
432
432
Friday
79.3%
8.5 min
444
446
Saturday
85.7%
6.2 min
300
304
Sunday
73.0%
16.6 min
392
394
Month of year
Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.
On-time departuresPartial coverage: only airlines that report on-time data to the US DOT
100.050.00.0
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
20.310.10.0
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
3121560
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
88.0%
7.7 min
233
240
Feb
86.8%
6.8 min
235
237
Mar
76.6%
13.0 min
312
312
Apr
74.9%
10.5 min
299
300
May
70.5%
14.9 min
207
207
Jun
61.5%
20.3 min
208
208
Jul
67.0%
17.5 min
221
222
Aug
Fewer than 200 measured departures
—
65
66
Sep
Fewer than 200 measured departures
—
60
60
Oct
86.8%
6.0 min
266
266
Nov
84.6%
6.6 min
299
299
Dec
80.1%
9.0 min
296
296
Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.
Recorded outcomes
On time78.3%2,124
Delayed >15 min21.3%577
Cancelled0.4%12
Missing departure time0.0%0
All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.
On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.
Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.