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 delay09:00–10:004.8min · 409 recorded · 407 measured
Gap to highest-delay hour30.9min09:00 ↔ 19:00
Recorded flights3,853CLT–SBN
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
35.717.80.0
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
6233120
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
91.0%
9.1 min
600
623
07:00
Fewer than 200 measured departures
—
31
32
08:00
Fewer than 200 measured departures
—
36
37
09:00
88.9%
4.8 min
407
409
10:00
Fewer than 200 measured departures
—
88
93
11:00
78.8%
10.8 min
486
492
12:00
Fewer than 200 measured departures
—
88
93
13:00
Fewer than 200 measured departures
—
176
180
14:00
Fewer than 200 measured departures
—
162
166
15:00
Fewer than 200 measured departures
—
67
70
16:00
Fewer than 200 measured departures
—
160
161
17:00
69.7%
20.5 min
452
465
18:00
Fewer than 200 measured departures
—
92
92
19:00
67.2%
35.7 min
296
307
20:00
74.1%
20.1 min
351
362
21:00
Fewer than 200 measured departures
—
138
147
22:00
Fewer than 200 measured departures
—
118
124
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
22.511.20.0
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
5682840
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
80.2%
14.9 min
549
564
Tuesday
82.2%
10.6 min
521
525
Wednesday
81.7%
9.2 min
542
552
Thursday
79.4%
18.1 min
535
550
Friday
80.2%
15.8 min
540
554
Saturday
77.9%
10.2 min
511
540
Sunday
72.4%
22.5 min
550
568
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
27.113.60.0
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
3751880
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
83.1%
7.1 min
290
318
Feb
78.1%
23.3 min
297
314
Mar
78.2%
27.1 min
340
354
Apr
82.5%
9.7 min
359
360
May
76.9%
12.1 min
363
370
Jun
69.4%
24.5 min
330
348
Jul
68.9%
20.2 min
350
354
Aug
Fewer than 200 measured departures
—
178
180
Sep
Fewer than 200 measured departures
—
179
180
Oct
89.2%
0.8 min
342
342
Nov
90.1%
6.6 min
365
375
Dec
70.1%
23.6 min
355
358
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 time77.0%2,965
Delayed >15 min20.3%783
Cancelled2.7%105
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.