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 delay06:00–07:00-0.0min · 225 recorded · 225 measured
Gap to highest-delay hour26.3min06:00 ↔ 19:00
Recorded flights3,591HOU–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
26.313.1-0.0
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
4202100
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
—
170
178
06:00
94.2%
-0.0 min
225
225
07:00
94.0%
1.2 min
419
420
08:00
92.5%
2.6 min
372
378
09:00
Fewer than 200 measured departures
—
98
99
10:00
Fewer than 200 measured departures
—
47
48
11:00
84.4%
6.2 min
218
218
12:00
Fewer than 200 measured departures
—
132
133
13:00
Fewer than 200 measured departures
—
138
138
14:00
62.9%
18.4 min
240
240
15:00
77.8%
9.8 min
261
263
16:00
Fewer than 200 measured departures
—
60
60
17:00
Fewer than 200 measured departures
—
137
137
18:00
Fewer than 200 measured departures
—
198
198
19:00
54.7%
26.3 min
254
258
20:00
77.0%
9.3 min
200
201
21:00
Fewer than 200 measured departures
—
190
190
22:00
59.4%
22.6 min
202
207
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
13.76.80.0
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
5832920
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.3%
11.4 min
538
542
Tuesday
81.8%
7.4 min
478
483
Wednesday
83.2%
9.7 min
471
474
Thursday
76.6%
13.0 min
525
528
Friday
77.6%
13.2 min
544
545
Saturday
83.2%
7.3 min
434
436
Sunday
72.5%
13.7 min
571
583
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
3681840
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
89.7%
3.1 min
262
280
Feb
87.4%
4.7 min
294
294
Mar
78.1%
11.5 min
361
364
Apr
80.8%
8.4 min
360
360
May
74.0%
12.1 min
365
366
Jun
67.4%
18.8 min
356
361
Jul
71.3%
17.6 min
366
368
Aug
Fewer than 200 measured departures
—
160
160
Sep
Fewer than 200 measured departures
—
154
154
Oct
82.4%
7.8 min
273
274
Nov
80.1%
9.3 min
302
302
Dec
77.3%
13.1 min
308
308
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 time77.6%2,787
Delayed >15 min21.6%774
Cancelled0.8%30
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.