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 delay12:00–13:000.5min · 249 recorded · 244 measured
Gap to highest-delay hour24.9min12:00 ↔ 22:00
Recorded flights4,334CLT–MLB
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
25.312.70.0
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
6643320
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
No observations
—
—
—
06:00
90.5%
14.6 min
472
487
07:00
Fewer than 200 measured departures
—
114
118
08:00
Fewer than 200 measured departures
—
41
41
09:00
84.9%
5.1 min
436
444
10:00
Fewer than 200 measured departures
—
66
71
11:00
79.3%
15.8 min
652
664
12:00
90.6%
0.5 min
244
249
13:00
77.5%
12.9 min
364
369
14:00
Fewer than 200 measured departures
—
72
75
15:00
75.2%
15.7 min
472
481
16:00
Fewer than 200 measured departures
—
110
116
17:00
70.4%
23.3 min
449
459
18:00
Fewer than 200 measured departures
—
68
69
19:00
Fewer than 200 measured departures
—
116
119
20:00
Fewer than 200 measured departures
—
71
74
21:00
73.8%
23.8 min
202
209
22:00
71.4%
25.3 min
280
289
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
20.610.30.0
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
6553280
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
80.6%
15.4 min
618
631
Tuesday
84.8%
9.9 min
573
585
Wednesday
83.5%
10.0 min
583
596
Thursday
78.0%
20.6 min
628
638
Friday
81.7%
10.6 min
612
628
Saturday
75.8%
18.3 min
582
601
Sunday
76.9%
15.8 min
633
655
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
31.715.90.0
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
4642320
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
84.0%
6.5 min
425
464
Feb
73.3%
31.7 min
359
374
Mar
82.4%
12.4 min
392
406
Apr
81.6%
15.0 min
419
420
May
77.6%
18.3 min
428
434
Jun
76.0%
25.7 min
350
360
Jul
68.0%
22.4 min
353
364
Aug
Fewer than 200 measured departures
—
176
176
Sep
Fewer than 200 measured departures
—
193
194
Oct
84.6%
5.9 min
286
286
Nov
90.5%
0.0 min
412
418
Dec
77.5%
12.0 min
436
438
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 time78.2%3,389
Delayed >15 min19.4%840
Cancelled2.4%105
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.