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 delay10:00–11:002.6min · 276 recorded · 267 measured
Gap to highest-delay hour23.5min10:00 ↔ 15:00
Recorded flights4,661CLT–MCI
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
26.013.00.0
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
5152580
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
—
125
129
06:00
90.8%
7.8 min
502
515
07:00
Fewer than 200 measured departures
—
70
70
08:00
Fewer than 200 measured departures
—
127
134
09:00
83.0%
6.5 min
276
277
10:00
88.0%
2.6 min
267
276
11:00
Fewer than 200 measured departures
—
185
187
12:00
79.1%
13.4 min
430
436
13:00
79.1%
11.8 min
369
373
14:00
75.9%
12.1 min
203
209
15:00
72.8%
26.0 min
283
286
16:00
70.3%
15.6 min
499
505
17:00
Fewer than 200 measured departures
—
184
192
18:00
65.8%
25.7 min
409
413
19:00
Fewer than 200 measured departures
—
38
40
20:00
Fewer than 200 measured departures
—
90
92
21:00
65.5%
26.0 min
203
205
22:00
71.8%
18.6 min
309
322
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
18.29.10.0
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
7193600
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
77.1%
13.8 min
673
692
Tuesday
81.9%
18.2 min
625
635
Wednesday
83.8%
5.8 min
637
646
Thursday
78.7%
16.7 min
695
701
Friday
75.0%
15.2 min
671
680
Saturday
76.6%
12.1 min
572
588
Sunday
72.8%
16.7 min
696
719
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
23.811.90.0
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
4672340
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
83.4%
8.3 min
356
410
Feb
78.9%
23.8 min
355
362
Mar
76.1%
15.8 min
419
428
Apr
77.8%
12.8 min
433
434
May
76.4%
12.2 min
436
438
Jun
65.8%
23.6 min
403
410
Jul
74.0%
17.8 min
415
418
Aug
70.7%
13.9 min
232
234
Sep
Fewer than 200 measured departures
—
196
198
Oct
85.3%
9.7 min
408
408
Nov
87.1%
7.1 min
449
454
Dec
77.7%
12.7 min
467
467
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 time76.4%3,560
Delayed >15 min21.6%1,009
Cancelled2.0%92
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.