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 delay14:00–15:004.7min · 219 recorded · 212 measured
Gap to highest-delay hour22.9min14:00 ↔ 18:00
Recorded flights3,762ALB–ATL
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
27.613.80.0
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
6583290
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
90.6%
10.5 min
648
658
07:00
No observations
—
—
—
08:00
Fewer than 200 measured departures
—
27
27
09:00
84.2%
4.8 min
531
538
10:00
Fewer than 200 measured departures
—
1
1
11:00
Fewer than 200 measured departures
—
91
94
12:00
76.0%
14.2 min
462
469
13:00
Fewer than 200 measured departures
—
93
95
14:00
84.4%
4.7 min
212
219
15:00
70.9%
18.5 min
398
402
16:00
Fewer than 200 measured departures
—
36
36
17:00
Fewer than 200 measured departures
—
40
41
18:00
69.4%
27.6 min
389
396
19:00
Fewer than 200 measured departures
—
142
143
20:00
Fewer than 200 measured departures
—
66
66
21:00
73.4%
19.5 min
561
572
22:00
Fewer than 200 measured departures
—
5
5
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
26.013.00.0
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
5582790
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
73.6%
14.1 min
549
558
Tuesday
80.1%
12.4 min
537
546
Wednesday
85.1%
5.4 min
542
544
Thursday
83.2%
9.8 min
547
548
Friday
80.7%
17.2 min
543
548
Saturday
79.6%
16.7 min
455
472
Sunday
69.6%
26.0 min
529
546
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
29.814.90.0
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
3661830
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
82.6%
15.3 min
304
320
Feb
76.1%
19.9 min
318
318
Mar
85.9%
5.7 min
355
366
Apr
83.4%
7.6 min
356
360
May
76.0%
13.9 min
366
366
Jun
74.7%
18.8 min
344
354
Jul
63.5%
29.8 min
362
366
Aug
Fewer than 200 measured departures
—
180
182
Sep
Fewer than 200 measured departures
—
163
164
Oct
82.5%
6.8 min
280
280
Nov
86.1%
6.2 min
330
334
Dec
75.9%
23.2 min
344
352
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 time77.6%2,918
Delayed >15 min20.8%784
Cancelled1.6%60
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.