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 delay07:00–08:008.1min · 463 recorded · 460 measured
Gap to highest-delay hour20.4min07:00 ↔ 16:00
Recorded flights2,278CLT–STT
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
28.414.20.0
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
7123560
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
No observations
—
—
—
06:00
No observations
—
—
—
07:00
88.7%
8.1 min
460
463
08:00
Fewer than 200 measured departures
—
86
89
09:00
Fewer than 200 measured departures
—
95
95
10:00
Fewer than 200 measured departures
—
44
46
11:00
83.1%
8.9 min
706
712
12:00
Fewer than 200 measured departures
—
138
140
13:00
Fewer than 200 measured departures
—
159
164
14:00
Fewer than 200 measured departures
—
79
79
15:00
Fewer than 200 measured departures
—
102
102
16:00
77.8%
28.4 min
343
348
17:00
Fewer than 200 measured departures
—
40
40
18:00
No observations
—
—
—
19:00
No observations
—
—
—
20:00
No observations
—
—
—
21:00
No observations
—
—
—
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
23.011.50.0
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
3641820
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
81.4%
16.6 min
333
336
Tuesday
88.6%
4.6 min
289
292
Wednesday
86.2%
5.3 min
298
298
Thursday
87.4%
5.4 min
324
324
Friday
82.9%
8.7 min
328
330
Saturday
79.0%
23.0 min
353
364
Sunday
79.2%
12.7 min
327
334
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
26.813.40.0
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
2521260
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
77.8%
26.8 min
216
232
Feb
80.2%
16.2 min
212
216
Mar
83.1%
9.5 min
248
248
Apr
83.3%
9.4 min
240
240
May
84.9%
8.8 min
252
252
Jun
81.0%
15.0 min
247
248
Jul
83.2%
4.8 min
250
250
Aug
Fewer than 200 measured departures
—
59
64
Sep
Fewer than 200 measured departures
—
10
10
Oct
Fewer than 200 measured departures
—
94
94
Nov
90.0%
5.9 min
200
200
Dec
83.5%
10.6 min
224
224
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 time82.4%1,877
Delayed >15 min16.5%375
Cancelled1.1%26
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.