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 delay09:00–10:0014.6min · 309 recorded · 302 measured
Gap to highest-delay hour26.0min09:00 ↔ 19:00
Recorded flights3,685DFW–GRR
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
40.520.30.0
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
5052530
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
—
144
149
06:00
Fewer than 200 measured departures
—
86
89
07:00
82.9%
28.4 min
409
421
08:00
Fewer than 200 measured departures
—
131
134
09:00
76.8%
14.6 min
302
309
10:00
Fewer than 200 measured departures
—
197
202
11:00
Fewer than 200 measured departures
—
12
13
12:00
Fewer than 200 measured departures
—
123
124
13:00
60.4%
39.1 min
202
206
14:00
63.9%
26.2 min
493
505
15:00
69.3%
23.0 min
313
326
16:00
Fewer than 200 measured departures
—
27
27
17:00
Fewer than 200 measured departures
—
154
159
18:00
55.1%
38.0 min
390
399
19:00
62.6%
40.5 min
452
473
20:00
Fewer than 200 measured departures
—
101
107
21:00
Fewer than 200 measured departures
—
41
42
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
39.819.90.0
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
5692850
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
67.8%
39.8 min
519
534
Tuesday
70.0%
28.2 min
470
486
Wednesday
68.6%
25.2 min
496
506
Thursday
68.6%
27.9 min
544
556
Friday
70.4%
20.7 min
521
536
Saturday
66.3%
29.8 min
480
498
Sunday
64.4%
35.7 min
547
569
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
48.724.30.0
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
4262130
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
65.6%
30.6 min
259
282
Feb
68.9%
21.6 min
264
264
Mar
65.1%
33.8 min
338
342
Apr
71.6%
17.9 min
338
342
May
67.7%
27.9 min
347
364
Jun
62.2%
31.3 min
392
412
Jul
65.0%
35.5 min
420
426
Aug
Fewer than 200 measured departures
—
188
196
Sep
Fewer than 200 measured departures
—
170
180
Oct
76.8%
18.8 min
272
274
Nov
72.0%
23.8 min
289
299
Dec
63.3%
48.7 min
300
304
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 time66.0%2,431
Delayed >15 min31.1%1,146
Cancelled2.9%108
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.