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 delay12:00–13:003.5min · 232 recorded · 230 measured
Gap to highest-delay hour20.9min12:00 ↔ 19:00
Recorded flights6,969CLT–IND
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
24.412.20.0
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
7513760
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
—
7
7
06:00
93.3%
6.2 min
612
623
07:00
88.4%
7.9 min
224
229
08:00
89.4%
15.6 min
736
751
09:00
89.2%
6.9 min
380
386
10:00
87.7%
10.6 min
212
213
11:00
86.1%
7.1 min
416
422
12:00
87.4%
3.5 min
230
232
13:00
80.2%
17.8 min
590
600
14:00
82.1%
11.1 min
302
305
15:00
76.8%
18.9 min
487
494
16:00
72.0%
17.1 min
232
232
17:00
69.3%
18.9 min
684
698
18:00
Fewer than 200 measured departures
—
132
132
19:00
65.2%
24.4 min
388
403
20:00
70.7%
18.2 min
570
578
21:00
Fewer than 200 measured departures
—
177
182
22:00
69.9%
22.6 min
435
446
23:00
Fewer than 200 measured departures
—
35
36
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
21.110.50.0
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
1,0915460
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
77.0%
18.1 min
1,009
1,029
Tuesday
84.4%
11.3 min
928
941
Wednesday
85.3%
6.4 min
951
962
Thursday
79.4%
16.0 min
1,049
1,064
Friday
79.4%
16.3 min
1,005
1,021
Saturday
78.9%
14.7 min
844
861
Sunday
74.3%
21.1 min
1,063
1,091
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
29.214.60.0
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
7243620
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
81.4%
12.5 min
564
614
Feb
79.9%
10.6 min
548
563
Mar
80.9%
17.0 min
649
654
Apr
80.8%
16.0 min
616
624
May
78.3%
10.2 min
654
658
Jun
75.0%
23.7 min
691
704
Jul
72.8%
17.7 min
709
724
Aug
66.3%
29.2 min
282
286
Sep
85.4%
5.0 min
294
296
Oct
87.7%
8.8 min
602
602
Nov
88.8%
8.2 min
614
616
Dec
76.8%
21.5 min
626
628
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%5,458
Delayed >15 min20.0%1,391
Cancelled1.7%120
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.