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 delay07:00–08:002.4min · 274 recorded · 270 measured
Gap to highest-delay hour21.5min07:00 ↔ 19:00
Recorded flights3,475IND–MIA
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
23.912.00.0
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
6393200
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
—
33
34
06:00
91.0%
8.2 min
632
639
07:00
89.6%
2.4 min
270
274
08:00
Fewer than 200 measured departures
—
199
201
09:00
Fewer than 200 measured departures
—
17
17
10:00
Fewer than 200 measured departures
—
113
114
11:00
Fewer than 200 measured departures
—
193
194
12:00
Fewer than 200 measured departures
—
133
135
13:00
Fewer than 200 measured departures
—
155
155
14:00
Fewer than 200 measured departures
—
140
142
15:00
68.1%
22.8 min
351
354
16:00
Fewer than 200 measured departures
—
36
37
17:00
Fewer than 200 measured departures
—
68
69
18:00
Fewer than 200 measured departures
—
99
99
19:00
68.0%
23.9 min
337
344
20:00
76.4%
13.6 min
216
221
21:00
69.3%
20.7 min
439
446
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
23.912.00.0
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
5862930
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
74.2%
22.6 min
493
507
Tuesday
84.1%
8.2 min
439
446
Wednesday
85.1%
7.9 min
422
425
Thursday
78.9%
12.1 min
489
491
Friday
79.1%
15.4 min
502
505
Saturday
75.4%
13.5 min
582
586
Sunday
74.4%
23.9 min
504
515
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
22.711.40.0
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
4512260
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
81.1%
11.7 min
433
451
Feb
79.4%
12.0 min
373
373
Mar
74.6%
18.7 min
421
428
Apr
83.7%
12.3 min
307
313
May
79.6%
8.8 min
299
300
Jun
73.8%
22.7 min
240
244
Jul
70.0%
21.6 min
250
254
Aug
Fewer than 200 measured departures
—
122
124
Sep
Fewer than 200 measured departures
—
105
105
Oct
Fewer than 200 measured departures
—
192
192
Nov
84.2%
9.8 min
329
331
Dec
74.2%
19.5 min
360
360
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 time77.4%2,691
Delayed >15 min21.3%740
Cancelled1.3%44
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.