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 delay11:00–12:005.0min · 306 recorded · 303 measured
Gap to highest-delay hour19.2min11:00 ↔ 16:00
Recorded flights4,591CLT–EYW
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
24.212.10.0
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
6983490
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
No observations
—
—
—
07:00
Fewer than 200 measured departures
—
126
136
08:00
87.3%
8.3 min
354
356
09:00
80.5%
11.2 min
384
386
10:00
Fewer than 200 measured departures
—
155
162
11:00
85.8%
5.0 min
303
306
12:00
80.7%
14.9 min
673
683
13:00
77.1%
13.6 min
564
572
14:00
79.9%
7.9 min
432
437
15:00
75.5%
16.6 min
347
353
16:00
74.9%
24.2 min
688
698
17:00
Fewer than 200 measured departures
—
122
123
18:00
Fewer than 200 measured departures
—
108
114
19:00
Fewer than 200 measured departures
—
146
155
20:00
Fewer than 200 measured departures
—
109
110
21:00
No observations
—
—
—
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
22.411.20.0
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
6793400
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
77.2%
18.8 min
649
669
Tuesday
83.6%
8.1 min
610
619
Wednesday
85.9%
10.6 min
640
644
Thursday
81.1%
15.4 min
662
667
Friday
77.1%
15.2 min
664
670
Saturday
75.6%
14.9 min
627
643
Sunday
75.0%
22.4 min
659
679
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
27.813.90.0
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
5002500
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
78.7%
16.2 min
446
478
Feb
77.6%
12.3 min
419
430
Mar
75.1%
27.8 min
478
488
Apr
81.9%
10.3 min
448
448
May
81.5%
17.8 min
410
412
Jun
76.4%
16.8 min
352
354
Jul
72.6%
17.2 min
361
362
Aug
Fewer than 200 measured departures
—
155
156
Sep
Fewer than 200 measured departures
—
178
178
Oct
87.9%
3.3 min
330
330
Nov
82.2%
12.4 min
438
455
Dec
76.4%
18.3 min
496
500
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 time77.9%3,578
Delayed >15 min20.3%933
Cancelled1.7%80
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.