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 delay12:00–13:0011.1min · 237 recorded · 231 measured
Gap to highest-delay hour14.2min12:00 ↔ 22:00
Recorded flights3,175ABE–CLT
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
25.312.60.0
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
5532770
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
—
33
33
06:00
90.2%
14.0 min
531
553
07:00
Fewer than 200 measured departures
—
64
69
08:00
Fewer than 200 measured departures
—
26
26
09:00
Fewer than 200 measured departures
—
150
154
10:00
Fewer than 200 measured departures
—
132
139
11:00
Fewer than 200 measured departures
—
151
153
12:00
86.2%
11.1 min
231
237
13:00
Fewer than 200 measured departures
—
91
96
14:00
Fewer than 200 measured departures
—
195
198
15:00
Fewer than 200 measured departures
—
187
187
16:00
Fewer than 200 measured departures
—
147
149
17:00
69.9%
22.1 min
346
352
18:00
Fewer than 200 measured departures
—
60
63
19:00
Fewer than 200 measured departures
—
98
99
20:00
Fewer than 200 measured departures
—
189
202
21:00
Fewer than 200 measured departures
—
79
80
22:00
69.3%
25.3 min
358
385
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
18.69.30.0
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
4632320
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
80.3%
18.0 min
442
463
Tuesday
79.5%
15.3 min
439
448
Wednesday
82.1%
14.2 min
441
450
Thursday
79.8%
15.0 min
440
452
Friday
75.5%
18.6 min
437
453
Saturday
78.6%
15.1 min
430
449
Sunday
78.4%
16.8 min
439
460
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
46.223.10.0
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
3481740
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
79.3%
18.8 min
294
316
Feb
84.7%
14.6 min
261
280
Mar
84.5%
12.0 min
238
254
Apr
80.4%
12.3 min
240
240
May
75.4%
30.8 min
244
248
Jun
67.7%
22.9 min
217
240
Jul
58.3%
46.2 min
223
232
Aug
Fewer than 200 measured departures
—
168
170
Sep
Fewer than 200 measured departures
—
179
180
Oct
87.3%
2.5 min
322
322
Nov
88.7%
3.3 min
345
345
Dec
75.7%
22.2 min
337
348
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 time76.5%2,429
Delayed >15 min20.1%639
Cancelled3.4%107
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.