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 delay14:00–15:0012.0min · 413 recorded · 409 measured
Gap to highest-delay hour14.9min14:00 ↔ 18:00
Recorded flights2,849CVG–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
26.913.50.0
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
4132070
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
—
110
111
06:00
Fewer than 200 measured departures
—
193
194
07:00
Fewer than 200 measured departures
—
90
90
08:00
Fewer than 200 measured departures
—
168
170
09:00
Fewer than 200 measured departures
—
134
134
10:00
Fewer than 200 measured departures
—
29
29
11:00
Fewer than 200 measured departures
—
155
155
12:00
Fewer than 200 measured departures
—
33
34
13:00
Fewer than 200 measured departures
—
71
71
14:00
80.4%
12.0 min
409
413
15:00
72.9%
17.0 min
236
242
16:00
Fewer than 200 measured departures
—
184
184
17:00
78.9%
21.4 min
260
264
18:00
67.5%
26.9 min
286
289
19:00
Fewer than 200 measured departures
—
199
203
20:00
Fewer than 200 measured departures
—
29
29
21:00
Fewer than 200 measured departures
—
127
128
22:00
Fewer than 200 measured departures
—
104
109
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
20.910.40.0
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
4922460
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
74.0%
18.5 min
473
480
Tuesday
81.2%
18.8 min
266
268
Wednesday
86.4%
5.6 min
280
280
Thursday
74.9%
13.3 min
434
434
Friday
81.3%
10.2 min
486
492
Saturday
80.5%
9.3 min
421
422
Sunday
74.0%
20.9 min
457
473
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
3621810
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
74.8%
15.6 min
202
210
Feb
80.8%
8.0 min
219
220
Mar
76.7%
13.4 min
348
362
Apr
84.5%
11.2 min
329
334
May
81.3%
9.5 min
299
299
Jun
75.6%
17.7 min
242
244
Jul
71.5%
23.7 min
242
242
Aug
Fewer than 200 measured departures
—
120
120
Sep
Fewer than 200 measured departures
—
102
102
Oct
Fewer than 200 measured departures
—
185
185
Nov
83.3%
8.9 min
239
239
Dec
68.3%
24.0 min
290
292
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 time77.4%2,205
Delayed >15 min21.5%612
Cancelled1.1%32
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.