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 delay08:00–09:0011.5min · 270 recorded · 267 measured
Gap to highest-delay hour30.6min08:00 ↔ 14:00
Recorded flights3,671HSV–ORD
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
42.121.10.0
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
5442720
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
—
45
45
06:00
84.9%
24.6 min
324
331
07:00
81.0%
16.3 min
500
503
08:00
81.3%
11.5 min
267
270
09:00
Fewer than 200 measured departures
—
41
44
10:00
71.6%
21.8 min
536
544
11:00
69.2%
30.8 min
227
232
12:00
Fewer than 200 measured departures
—
41
43
13:00
73.1%
32.4 min
223
228
14:00
70.3%
42.1 min
256
263
15:00
Fewer than 200 measured departures
—
130
137
16:00
No observations
—
—
—
17:00
Fewer than 200 measured departures
—
145
148
18:00
68.7%
24.6 min
441
454
19:00
Fewer than 200 measured departures
—
106
106
20:00
Fewer than 200 measured departures
—
124
131
21:00
Fewer than 200 measured departures
—
80
87
22:00
Fewer than 200 measured departures
—
97
101
23:00
Fewer than 200 measured departures
—
2
4
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
35.817.90.0
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
5482740
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
70.4%
31.0 min
527
548
Tuesday
76.4%
21.9 min
487
497
Wednesday
78.6%
18.1 min
486
494
Thursday
72.4%
26.8 min
515
523
Friday
70.3%
24.4 min
536
546
Saturday
72.6%
28.8 min
504
521
Sunday
67.6%
35.8 min
530
542
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
57.228.60.0
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
4162080
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
66.2%
41.0 min
237
241
Feb
64.9%
46.7 min
248
250
Mar
62.2%
57.2 min
304
326
Apr
78.2%
13.4 min
275
286
May
85.1%
8.6 min
296
298
Jun
75.1%
22.0 min
329
331
Jul
74.3%
25.4 min
303
308
Aug
70.1%
27.0 min
284
295
Sep
80.6%
9.7 min
247
247
Oct
74.2%
13.6 min
361
361
Nov
75.0%
20.5 min
396
416
Dec
62.3%
43.5 min
305
312
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 time70.8%2,599
Delayed >15 min26.9%986
Cancelled2.3%86
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.