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 delay12:00–13:003.5min · 298 recorded · 288 measured
Gap to highest-delay hour41.9min12:00 ↔ 20:00
Recorded flights4,427AVL–CLT
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
45.422.70.0
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
5442720
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
89.5%
12.0 min
305
321
06:00
88.9%
7.5 min
260
273
07:00
Fewer than 200 measured departures
—
144
146
08:00
Fewer than 200 measured departures
—
80
80
09:00
Fewer than 200 measured departures
—
129
139
10:00
Fewer than 200 measured departures
—
45
45
11:00
90.3%
4.2 min
352
364
12:00
87.2%
3.5 min
288
298
13:00
84.2%
7.3 min
246
250
14:00
79.7%
9.5 min
286
290
15:00
Fewer than 200 measured departures
—
25
26
16:00
74.3%
20.0 min
456
464
17:00
Fewer than 200 measured departures
—
154
155
18:00
71.6%
21.8 min
535
544
19:00
71.7%
17.0 min
254
256
20:00
63.7%
45.4 min
204
211
21:00
Fewer than 200 measured departures
—
73
78
22:00
73.4%
20.8 min
379
401
23:00
Fewer than 200 measured departures
—
78
86
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
22.311.10.0
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
6593300
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
77.8%
14.2 min
634
650
Tuesday
82.2%
13.7 min
608
624
Wednesday
84.0%
7.7 min
620
640
Thursday
79.2%
16.9 min
609
630
Friday
80.5%
14.4 min
626
644
Saturday
78.5%
16.1 min
562
580
Sunday
74.0%
22.3 min
634
659
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
32.216.10.0
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
4762380
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
84.5%
9.1 min
438
476
Feb
80.2%
14.7 min
435
462
Mar
78.1%
16.1 min
430
440
Apr
78.4%
14.4 min
426
426
May
82.1%
13.9 min
413
418
Jun
72.3%
26.1 min
242
261
Jul
65.5%
32.2 min
220
243
Aug
74.6%
17.4 min
220
222
Sep
84.9%
8.7 min
218
218
Oct
81.6%
16.9 min
462
462
Nov
88.6%
3.5 min
465
469
Dec
69.4%
21.1 min
324
330
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 time77.0%3,410
Delayed >15 min19.9%883
Cancelled3.0%134
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.