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 delay08:00–09:0011.8min · 405 recorded · 402 measured
Gap to highest-delay hour21.2min08:00 ↔ 12:00
Recorded flights5,059PHL–RSW
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
33.016.50.0
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
6943470
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
—
85
86
06:00
Fewer than 200 measured departures
—
135
137
07:00
90.3%
12.8 min
535
544
08:00
85.6%
11.8 min
402
405
09:00
Fewer than 200 measured departures
—
120
122
10:00
78.8%
15.4 min
439
447
11:00
74.5%
20.3 min
447
454
12:00
75.1%
33.0 min
301
306
13:00
75.9%
16.3 min
294
297
14:00
70.8%
26.3 min
674
694
15:00
Fewer than 200 measured departures
—
112
116
16:00
Fewer than 200 measured departures
—
155
164
17:00
68.3%
29.3 min
445
462
18:00
Fewer than 200 measured departures
—
120
122
19:00
71.4%
24.5 min
399
414
20:00
Fewer than 200 measured departures
—
120
124
21:00
Fewer than 200 measured departures
—
137
146
22:00
Fewer than 200 measured departures
—
18
19
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
35.917.90.0
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
7813910
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
74.4%
23.5 min
714
756
Tuesday
80.8%
15.4 min
660
672
Wednesday
80.7%
14.8 min
620
621
Thursday
74.1%
21.9 min
760
770
Friday
76.1%
14.0 min
754
760
Saturday
73.7%
21.1 min
685
699
Sunday
71.1%
35.9 min
745
781
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
36.018.00.0
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
6333170
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
73.3%
20.7 min
472
496
Feb
75.0%
14.7 min
504
530
Mar
73.6%
30.3 min
617
633
Apr
76.1%
25.1 min
569
578
May
81.2%
13.8 min
458
460
Jun
75.4%
19.5 min
398
406
Jul
71.0%
36.0 min
386
402
Aug
Fewer than 200 measured departures
—
159
160
Sep
Fewer than 200 measured departures
—
146
146
Oct
72.8%
13.9 min
257
258
Nov
84.9%
11.2 min
430
440
Dec
70.7%
26.0 min
542
550
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 time73.8%3,736
Delayed >15 min23.8%1,202
Cancelled2.4%121
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.