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 delay08:00–09:009.0min · 626 recorded · 614 measured
Gap to highest-delay hour30.9min08:00 ↔ 19:00
Recorded flights4,112DFW–MKE
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
39.920.00.0
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
6263130
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
—
53
54
06:00
83.0%
17.2 min
476
489
07:00
Fewer than 200 measured departures
—
194
203
08:00
81.4%
9.0 min
614
626
09:00
Fewer than 200 measured departures
—
37
41
10:00
Fewer than 200 measured departures
—
2
2
11:00
73.9%
35.0 min
460
467
12:00
Fewer than 200 measured departures
—
176
182
13:00
Fewer than 200 measured departures
—
50
51
14:00
66.7%
29.4 min
489
502
15:00
65.0%
36.6 min
343
356
16:00
Fewer than 200 measured departures
—
73
76
17:00
Fewer than 200 measured departures
—
178
188
18:00
Fewer than 200 measured departures
—
150
161
19:00
51.1%
39.9 min
325
333
20:00
56.0%
32.6 min
218
230
21:00
Fewer than 200 measured departures
—
144
151
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
39.019.50.0
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
6013010
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
67.0%
39.0 min
566
595
Tuesday
72.5%
28.4 min
563
578
Wednesday
73.9%
18.0 min
574
584
Thursday
70.2%
29.1 min
571
586
Friday
72.4%
20.3 min
576
590
Saturday
69.8%
24.2 min
550
578
Sunday
63.2%
33.0 min
582
601
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
47.223.60.0
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
4182090
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
74.0%
24.9 min
384
418
Feb
74.3%
16.2 min
354
354
Mar
68.4%
32.7 min
361
372
Apr
71.9%
22.2 min
345
355
May
67.1%
32.9 min
352
366
Jun
56.2%
47.2 min
345
359
Jul
59.1%
42.9 min
350
361
Aug
Fewer than 200 measured departures
—
178
186
Sep
Fewer than 200 measured departures
—
176
180
Oct
80.6%
18.3 min
346
350
Nov
73.6%
18.9 min
382
393
Dec
70.4%
23.7 min
409
418
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 time67.6%2,781
Delayed >15 min29.2%1,201
Cancelled3.2%130
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.