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 delay06:00–07:001.7min · 513 recorded · 509 measured
Gap to highest-delay hour25.2min06:00 ↔ 22:00
Recorded flights3,482CRP–HOU
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
26.913.50.0
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
5132570
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
—
54
54
06:00
93.5%
1.7 min
509
513
07:00
Fewer than 200 measured departures
—
88
88
08:00
Fewer than 200 measured departures
—
26
26
09:00
Fewer than 200 measured departures
—
123
123
10:00
86.8%
5.1 min
341
342
11:00
86.7%
9.7 min
390
391
12:00
85.0%
5.4 min
307
310
13:00
Fewer than 200 measured departures
—
81
82
14:00
Fewer than 200 measured departures
—
50
51
15:00
Fewer than 200 measured departures
—
180
180
16:00
74.3%
13.5 min
249
251
17:00
62.7%
16.1 min
220
220
18:00
67.1%
18.2 min
301
302
19:00
Fewer than 200 measured departures
—
76
76
20:00
Fewer than 200 measured departures
—
177
179
21:00
Fewer than 200 measured departures
—
75
76
22:00
55.3%
26.9 min
217
218
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
12.36.20.0
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
5582790
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.9%
11.1 min
530
536
Tuesday
78.4%
10.1 min
458
462
Wednesday
77.7%
12.3 min
452
454
Thursday
78.2%
11.1 min
528
532
Friday
82.4%
8.7 min
544
544
Saturday
79.6%
11.9 min
396
396
Sunday
75.0%
12.3 min
556
558
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
17.58.70.0
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
3561780
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
91.0%
0.4 min
277
284
Feb
85.6%
3.8 min
284
284
Mar
76.9%
12.1 min
346
346
Apr
79.6%
10.8 min
328
328
May
72.8%
17.0 min
335
336
Jun
65.9%
16.9 min
337
340
Jul
68.5%
17.5 min
356
356
Aug
Fewer than 200 measured departures
—
158
158
Sep
Fewer than 200 measured departures
—
154
154
Oct
79.8%
7.7 min
272
274
Nov
83.8%
6.1 min
308
312
Dec
78.0%
15.3 min
309
310
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 time77.7%2,705
Delayed >15 min21.8%759
Cancelled0.5%18
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.