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 delay09:00–10:002.8min · 286 recorded · 280 measured
Gap to highest-delay hour17.2min09:00 ↔ 17:00
Recorded flights4,287COU–DFW
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
20.010.00.0
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
6653330
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
—
1
1
06:00
Fewer than 200 measured departures
—
81
84
07:00
89.1%
10.4 min
559
571
08:00
Fewer than 200 measured departures
—
10
10
09:00
88.6%
2.8 min
280
286
10:00
87.4%
4.5 min
358
368
11:00
Fewer than 200 measured departures
—
76
76
12:00
76.4%
16.5 min
559
574
13:00
No observations
—
—
—
14:00
Fewer than 200 measured departures
—
119
121
15:00
78.2%
10.8 min
422
442
16:00
Fewer than 200 measured departures
—
137
142
17:00
73.4%
20.0 min
636
665
18:00
Fewer than 200 measured departures
—
96
104
19:00
Fewer than 200 measured departures
—
189
198
20:00
76.7%
17.1 min
395
407
21:00
81.5%
10.3 min
227
238
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
19.89.90.0
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
6453230
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
81.9%
11.7 min
602
624
Tuesday
85.0%
9.4 min
548
563
Wednesday
81.5%
7.0 min
585
601
Thursday
78.7%
15.2 min
609
629
Friday
84.6%
19.8 min
592
619
Saturday
74.0%
16.3 min
585
606
Sunday
74.8%
18.0 min
624
645
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
18.89.40.0
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
4162080
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
82.3%
6.8 min
333
366
Feb
85.5%
9.5 min
296
318
Mar
82.2%
16.2 min
393
404
Apr
78.5%
15.6 min
404
412
May
80.6%
18.0 min
392
406
Jun
73.2%
18.3 min
391
400
Jul
77.9%
14.5 min
408
416
Aug
Fewer than 200 measured departures
—
182
186
Sep
79.7%
8.3 min
232
236
Oct
82.9%
14.3 min
356
362
Nov
82.2%
10.9 min
387
405
Dec
77.9%
18.8 min
371
376
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 time77.4%3,316
Delayed >15 min19.3%829
Cancelled3.3%142
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.