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 delay06:00–07:000.9min · 385 recorded · 381 measured
Gap to highest-delay hour20.6min06:00 ↔ 22:00
Recorded flights3,780ELP–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
21.610.80.0
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
4062030
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
—
39
39
06:00
94.8%
0.9 min
381
385
07:00
92.5%
3.0 min
374
376
08:00
90.6%
1.5 min
371
371
09:00
Fewer than 200 measured departures
—
166
170
10:00
85.9%
6.3 min
213
215
11:00
84.0%
5.9 min
212
213
12:00
Fewer than 200 measured departures
—
109
109
13:00
Fewer than 200 measured departures
—
45
45
14:00
68.6%
15.8 min
405
406
15:00
71.0%
13.7 min
359
359
16:00
67.2%
18.3 min
341
342
17:00
Fewer than 200 measured departures
—
59
59
18:00
Fewer than 200 measured departures
—
34
35
19:00
Fewer than 200 measured departures
—
6
6
20:00
Fewer than 200 measured departures
—
174
175
21:00
Fewer than 200 measured departures
—
184
185
22:00
58.5%
21.6 min
289
290
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
12.06.00.0
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
5672840
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
76.9%
11.1 min
550
552
Tuesday
81.7%
8.6 min
498
503
Wednesday
79.9%
9.0 min
497
502
Thursday
79.6%
7.5 min
544
546
Friday
78.4%
10.4 min
552
552
Saturday
79.3%
8.8 min
566
567
Sunday
75.8%
12.0 min
554
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
17.78.80.0
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
3791900
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
83.3%
5.7 min
299
306
Feb
84.2%
5.3 min
298
300
Mar
74.7%
12.9 min
360
364
Apr
79.9%
8.3 min
358
359
May
76.1%
9.7 min
372
372
Jun
66.8%
15.6 min
349
349
Jul
70.1%
17.7 min
358
360
Aug
Fewer than 200 measured departures
—
168
168
Sep
Fewer than 200 measured departures
—
162
162
Oct
83.7%
7.4 min
300
300
Nov
86.1%
6.2 min
360
361
Dec
80.6%
9.5 min
377
379
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 time78.4%2,962
Delayed >15 min21.1%799
Cancelled0.5%19
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.