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 delay07:00–08:00-2.5min · 284 recorded · 279 measured
Gap to highest-delay hour9.0min07:00 ↔ 16:00
Recorded flights4,508MIA–PNS
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
6.62.1-2.5
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
6593300
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
—
23
23
06:00
93.4%
5.5 min
624
635
07:00
93.9%
-2.5 min
279
284
08:00
Fewer than 200 measured departures
—
195
196
09:00
93.3%
-1.6 min
359
366
10:00
Fewer than 200 measured departures
—
97
97
11:00
Fewer than 200 measured departures
—
98
104
12:00
Fewer than 200 measured departures
—
3
3
13:00
Fewer than 200 measured departures
—
54
54
14:00
Fewer than 200 measured departures
—
111
114
15:00
87.4%
4.3 min
374
377
16:00
80.5%
6.6 min
266
273
17:00
83.3%
6.3 min
648
659
18:00
90.0%
2.3 min
209
209
19:00
82.2%
4.6 min
426
434
20:00
Fewer than 200 measured departures
—
29
32
21:00
Fewer than 200 measured departures
—
33
33
22:00
84.8%
3.8 min
480
489
23:00
Fewer than 200 measured departures
—
125
126
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
9.34.5-0.4
MonTueWedThuFriSatSun
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
6623310
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
88.2%
3.7 min
644
662
Tuesday
92.5%
-0.4 min
625
637
Wednesday
88.8%
2.8 min
615
626
Thursday
88.4%
3.1 min
630
641
Friday
88.3%
3.2 min
648
658
Saturday
86.4%
3.7 min
641
644
Sunday
82.2%
9.3 min
630
640
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
8.04.00.0
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
4732370
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
88.8%
2.6 min
447
473
Feb
90.5%
2.4 min
377
377
Mar
87.6%
8.0 min
348
364
Apr
90.1%
0.2 min
385
392
May
88.1%
2.4 min
462
462
Jun
86.1%
3.2 min
411
420
Jul
83.2%
7.3 min
428
430
Aug
84.1%
6.3 min
232
232
Sep
Fewer than 200 measured departures
—
174
174
Oct
94.0%
0.1 min
302
302
Nov
90.4%
1.7 min
428
438
Dec
84.3%
6.2 min
439
444
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 time86.4%3,893
Delayed >15 min12.0%540
Cancelled1.7%75
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.