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 delay05:00–06:004.6min · 314 recorded · 306 measured
Gap to highest-delay hour14.5min05:00 ↔ 15:00
Recorded flights2,887CLT–MDT
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
19.29.60.0
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
3761880
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
92.8%
4.6 min
306
314
06:00
Fewer than 200 measured departures
—
165
165
07:00
Fewer than 200 measured departures
—
8
8
08:00
92.9%
11.3 min
240
244
09:00
Fewer than 200 measured departures
—
2
2
10:00
Fewer than 200 measured departures
—
69
72
11:00
Fewer than 200 measured departures
—
144
145
12:00
Fewer than 200 measured departures
—
116
119
13:00
82.5%
13.6 min
320
322
14:00
Fewer than 200 measured departures
—
148
153
15:00
73.8%
19.2 min
286
288
16:00
Fewer than 200 measured departures
—
139
141
17:00
Fewer than 200 measured departures
—
190
194
18:00
Fewer than 200 measured departures
—
37
37
19:00
Fewer than 200 measured departures
—
137
137
20:00
Fewer than 200 measured departures
—
64
64
21:00
Fewer than 200 measured departures
—
100
106
22:00
75.3%
17.7 min
365
376
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
22.911.50.0
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
4292150
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.4%
22.9 min
415
423
Tuesday
83.5%
7.8 min
399
404
Wednesday
85.0%
8.5 min
420
423
Thursday
82.7%
13.2 min
415
418
Friday
82.7%
10.9 min
421
429
Saturday
74.6%
18.2 min
351
361
Sunday
75.9%
18.1 min
415
429
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
33.116.50.0
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
3881940
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
82.5%
10.0 min
228
250
Feb
79.9%
9.4 min
214
220
Mar
74.8%
11.6 min
290
292
Apr
82.2%
12.9 min
230
230
May
80.3%
16.0 min
234
235
Jun
70.1%
33.1 min
221
231
Jul
73.6%
21.7 min
216
218
Aug
Fewer than 200 measured departures
—
127
132
Sep
Fewer than 200 measured departures
—
120
120
Oct
84.5%
9.2 min
304
304
Nov
84.8%
7.7 min
387
388
Dec
80.4%
16.7 min
265
267
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 time78.7%2,271
Delayed >15 min19.6%565
Cancelled1.8%51
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.