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 → May 1, 2026
Lowest average delay05:00–06:00-0.1min · 242 recorded · 237 measured
Gap to highest-delay hour18.8min05:00 ↔ 21:00
Recorded flights2,305ACY–MCO
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
18.89.4-0.1
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
3771890
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
94.5%
-0.1 min
237
242
06:00
92.7%
3.2 min
358
377
07:00
Fewer than 200 measured departures
—
88
88
08:00
Fewer than 200 measured departures
—
18
18
09:00
Fewer than 200 measured departures
—
169
170
10:00
Fewer than 200 measured departures
—
111
114
11:00
Fewer than 200 measured departures
—
67
68
12:00
Fewer than 200 measured departures
—
53
53
13:00
Fewer than 200 measured departures
—
134
134
14:00
Fewer than 200 measured departures
—
97
98
15:00
Fewer than 200 measured departures
—
45
45
16:00
Fewer than 200 measured departures
—
47
49
17:00
74.0%
15.9 min
204
208
18:00
Fewer than 200 measured departures
—
72
78
19:00
Fewer than 200 measured departures
—
71
73
20:00
Fewer than 200 measured departures
—
194
195
21:00
71.0%
18.8 min
224
242
22:00
Fewer than 200 measured departures
—
52
53
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
14.87.40.0
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
3621810
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
77.9%
14.8 min
317
335
Tuesday
87.4%
1.7 min
301
310
Wednesday
85.6%
6.9 min
298
301
Thursday
80.6%
11.2 min
329
332
Friday
80.9%
8.6 min
319
328
Saturday
81.9%
8.4 min
354
362
Sunday
79.3%
12.4 min
323
337
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
16.18.10.0
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
2451230
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
81.9%
8.8 min
237
245
Feb
79.1%
13.1 min
206
228
Mar
Fewer than 200 measured departures
—
190
208
Apr
88.4%
4.5 min
232
234
May
Fewer than 200 measured departures
—
143
144
Jun
Fewer than 200 measured departures
—
126
126
Jul
Fewer than 200 measured departures
—
142
147
Aug
Fewer than 200 measured departures
—
179
181
Sep
Fewer than 200 measured departures
—
126
126
Oct
Fewer than 200 measured departures
—
193
194
Nov
87.5%
1.1 min
240
243
Dec
75.3%
16.1 min
227
229
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 time79.6%1,834
Delayed >15 min17.7%407
Cancelled2.8%64
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.