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 delay05:00–06:000.6min · 353 recorded · 348 measured
Gap to highest-delay hour23.7min05:00 ↔ 18:00
Recorded flights4,192DFW–LEX
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
24.312.20.0
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
6593300
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
94.5%
0.6 min
348
353
06:00
Fewer than 200 measured departures
—
90
90
07:00
90.0%
13.1 min
351
362
08:00
Fewer than 200 measured departures
—
60
60
09:00
Fewer than 200 measured departures
—
94
95
10:00
81.0%
15.5 min
479
483
11:00
Fewer than 200 measured departures
—
63
69
12:00
Fewer than 200 measured departures
—
59
59
13:00
80.6%
8.0 min
227
229
14:00
73.9%
20.4 min
647
659
15:00
79.7%
10.8 min
202
211
16:00
Fewer than 200 measured departures
—
163
171
17:00
Fewer than 200 measured departures
—
92
95
18:00
66.6%
24.3 min
362
367
19:00
73.2%
16.5 min
511
529
20:00
71.3%
22.2 min
230
244
21:00
Fewer than 200 measured departures
—
110
116
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
21.610.80.0
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
6223110
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
74.9%
19.2 min
586
603
Tuesday
84.1%
8.4 min
558
575
Wednesday
81.1%
9.7 min
572
584
Thursday
80.1%
10.9 min
603
613
Friday
80.4%
15.0 min
596
607
Saturday
74.8%
21.6 min
568
588
Sunday
78.2%
17.8 min
605
622
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
28.814.40.0
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
4852430
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
80.1%
14.1 min
256
282
Feb
82.8%
9.1 min
256
264
Mar
76.9%
24.7 min
342
348
Apr
75.6%
11.5 min
344
350
May
77.6%
18.4 min
379
391
Jun
75.0%
16.7 min
448
466
Jul
82.1%
10.3 min
475
485
Aug
77.3%
28.8 min
242
248
Sep
88.6%
2.1 min
236
240
Oct
87.1%
3.0 min
451
454
Nov
74.0%
17.0 min
331
336
Dec
72.6%
24.1 min
328
328
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 time77.1%3,232
Delayed >15 min20.4%856
Cancelled2.5%104
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.