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 delay06:00–07:005.2min · 292 recorded · 292 measured
Gap to highest-delay hour17.7min06:00 ↔ 16:00
Recorded flights3,959LAS–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
22.811.40.0
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
4382190
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
—
199
199
06:00
90.4%
5.2 min
292
292
07:00
83.5%
16.3 min
436
438
08:00
86.1%
9.0 min
344
344
09:00
88.7%
5.7 min
222
222
10:00
Fewer than 200 measured departures
—
158
158
11:00
Fewer than 200 measured departures
—
106
106
12:00
Fewer than 200 measured departures
—
56
57
13:00
Fewer than 200 measured departures
—
111
111
14:00
63.4%
19.1 min
251
251
15:00
66.2%
18.4 min
213
213
16:00
62.4%
22.8 min
335
335
17:00
59.5%
21.7 min
294
294
18:00
Fewer than 200 measured departures
—
81
83
19:00
Fewer than 200 measured departures
—
179
181
20:00
Fewer than 200 measured departures
—
30
31
21:00
79.3%
9.7 min
203
206
22:00
75.9%
16.5 min
245
255
23:00
Fewer than 200 measured departures
—
180
183
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
18.39.10.0
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
6173090
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
72.8%
15.6 min
596
599
Tuesday
80.6%
9.9 min
484
488
Wednesday
82.2%
7.9 min
495
497
Thursday
70.6%
18.3 min
598
601
Friday
75.9%
17.0 min
609
616
Saturday
77.7%
14.9 min
538
541
Sunday
69.6%
17.6 min
615
617
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
23.912.00.0
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
4552280
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
80.9%
10.2 min
346
349
Feb
79.4%
12.6 min
315
315
Mar
74.8%
15.5 min
313
317
Apr
78.3%
10.2 min
401
401
May
71.2%
19.7 min
455
455
Jun
64.8%
23.9 min
418
420
Jul
71.7%
16.6 min
413
427
Aug
Fewer than 200 measured departures
—
166
166
Sep
Fewer than 200 measured departures
—
179
179
Oct
80.1%
7.2 min
317
317
Nov
77.0%
12.6 min
295
296
Dec
74.1%
14.9 min
317
317
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 time74.8%2,961
Delayed >15 min24.6%974
Cancelled0.6%24
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.