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 delay06:00–07:002.8min · 556 recorded · 547 measured
Gap to highest-delay hour38.7min06:00 ↔ 20:00
Recorded flights6,094AUS–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
41.520.80.0
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
7863930
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
—
2
2
06:00
91.6%
2.8 min
547
556
07:00
Fewer than 200 measured departures
—
170
175
08:00
80.1%
15.0 min
433
437
09:00
84.4%
16.5 min
703
722
10:00
81.0%
13.8 min
231
231
11:00
86.7%
6.8 min
323
326
12:00
Fewer than 200 measured departures
—
159
164
13:00
77.6%
14.1 min
500
506
14:00
76.1%
15.3 min
201
203
15:00
68.3%
25.8 min
778
786
16:00
80.5%
11.3 min
231
236
17:00
63.7%
32.6 min
562
571
18:00
71.2%
27.2 min
260
261
19:00
63.1%
20.7 min
255
260
20:00
59.0%
41.5 min
271
277
21:00
70.1%
15.7 min
261
263
22:00
Fewer than 200 measured departures
—
110
118
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
24.212.10.0
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
9214610
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
74.1%
22.4 min
898
910
Tuesday
80.4%
14.6 min
816
826
Wednesday
80.9%
10.0 min
837
848
Thursday
75.1%
22.1 min
896
903
Friday
73.5%
22.9 min
878
892
Saturday
76.6%
19.6 min
772
794
Sunday
70.4%
24.2 min
900
921
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
33.316.70.0
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
6123060
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
78.5%
20.7 min
474
512
Feb
81.9%
14.0 min
485
494
Mar
74.8%
23.2 min
598
604
Apr
77.6%
11.6 min
566
568
May
72.7%
19.1 min
571
573
Jun
69.5%
33.3 min
524
532
Jul
64.6%
32.5 min
526
538
Aug
72.1%
21.5 min
262
268
Sep
78.4%
11.6 min
254
256
Oct
79.8%
18.3 min
544
546
Nov
83.9%
8.6 min
602
612
Dec
74.5%
18.7 min
591
591
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 time74.5%4,541
Delayed >15 min23.9%1,456
Cancelled1.6%97
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.