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 delay08:00–09:000.4min · 358 recorded · 354 measured
Gap to highest-delay hour19.9min08:00 ↔ 22:00
Recorded flights3,834CLE–TPA
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
20.410.20.0
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
3671840
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
90.5%
0.6 min
263
268
06:00
90.1%
5.8 min
212
217
07:00
Fewer than 200 measured departures
—
108
108
08:00
91.0%
0.4 min
354
358
09:00
84.4%
6.8 min
256
259
10:00
Fewer than 200 measured departures
—
199
202
11:00
85.8%
3.3 min
360
367
12:00
Fewer than 200 measured departures
—
104
105
13:00
Fewer than 200 measured departures
—
112
113
14:00
Fewer than 200 measured departures
—
195
196
15:00
Fewer than 200 measured departures
—
195
196
16:00
82.0%
8.6 min
245
245
17:00
73.6%
16.0 min
250
255
18:00
71.2%
18.7 min
278
280
19:00
Fewer than 200 measured departures
—
109
110
20:00
Fewer than 200 measured departures
—
152
158
21:00
Fewer than 200 measured departures
—
153
155
22:00
67.2%
20.4 min
235
242
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
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
20.410.20.0
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
6513260
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
76.3%
14.6 min
562
575
Tuesday
84.1%
5.4 min
391
398
Wednesday
86.3%
10.8 min
394
401
Thursday
84.0%
7.1 min
617
618
Friday
79.0%
11.1 min
600
605
Saturday
78.4%
10.4 min
582
586
Sunday
72.7%
20.4 min
634
651
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
24.012.00.0
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
5542770
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
77.7%
11.8 min
345
350
Feb
78.0%
12.1 min
372
383
Mar
82.8%
8.8 min
540
554
Apr
88.5%
3.6 min
442
446
May
82.4%
11.7 min
403
407
Jun
69.5%
20.4 min
318
318
Jul
66.6%
24.0 min
314
320
Aug
Fewer than 200 measured departures
—
134
136
Sep
Fewer than 200 measured departures
—
119
120
Oct
87.6%
4.6 min
202
202
Nov
82.1%
9.1 min
257
259
Dec
78.1%
14.7 min
334
339
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 time78.4%3,007
Delayed >15 min20.2%773
Cancelled1.4%54
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.