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 delay06:00–07:00-1.2min · 644 recorded · 632 measured
Gap to highest-delay hour40.8min06:00 ↔ 16:00
Recorded flights4,906EWR–JAX
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
39.619.2-1.2
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
6763380
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
No observations
—
—
—
06:00
93.5%
-1.2 min
632
644
07:00
94.4%
-0.6 min
515
522
08:00
Fewer than 200 measured departures
—
77
79
09:00
Fewer than 200 measured departures
—
173
174
10:00
84.7%
11.4 min
254
258
11:00
87.7%
10.5 min
269
271
12:00
85.5%
5.3 min
323
329
13:00
83.1%
8.1 min
261
266
14:00
Fewer than 200 measured departures
—
47
47
15:00
74.5%
25.9 min
650
676
16:00
66.1%
39.6 min
472
488
17:00
Fewer than 200 measured departures
—
7
7
18:00
66.0%
35.2 min
312
337
19:00
73.6%
25.6 min
454
471
20:00
Fewer than 200 measured departures
—
192
199
21:00
Fewer than 200 measured departures
—
132
138
22:00
No observations
—
—
—
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
25.412.70.0
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
7123560
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
81.0%
13.7 min
684
712
Tuesday
86.5%
9.5 min
680
702
Wednesday
83.9%
11.1 min
685
698
Thursday
78.6%
17.5 min
691
706
Friday
80.4%
13.6 min
703
712
Saturday
78.0%
21.6 min
658
672
Sunday
75.3%
25.4 min
669
704
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
44.022.00.0
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
4962480
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
87.0%
5.1 min
455
480
Feb
85.4%
5.6 min
419
440
Mar
78.9%
15.7 min
487
496
Apr
82.0%
16.4 min
477
480
May
78.8%
22.1 min
411
430
Jun
78.7%
21.8 min
390
392
Jul
70.1%
44.0 min
448
486
Aug
76.0%
18.9 min
237
240
Sep
Fewer than 200 measured departures
—
173
174
Oct
84.7%
6.8 min
326
326
Nov
78.8%
14.2 min
462
466
Dec
80.4%
10.1 min
485
496
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 time78.3%3,842
Delayed >15 min18.9%928
Cancelled2.8%136
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.