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 delay11:00–12:006.5min · 235 recorded · 229 measured
Gap to highest-delay hour21.2min11:00 ↔ 19:00
Recorded flights2,977MCI–PHL
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
27.713.80.0
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
5362680
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
—
52
58
06:00
88.1%
14.6 min
438
455
07:00
Fewer than 200 measured departures
—
41
41
08:00
Fewer than 200 measured departures
—
55
58
09:00
Fewer than 200 measured departures
—
40
41
10:00
85.9%
10.5 min
327
331
11:00
86.5%
6.5 min
229
235
12:00
Fewer than 200 measured departures
—
84
86
13:00
77.7%
22.7 min
525
536
14:00
67.1%
21.1 min
231
236
15:00
Fewer than 200 measured departures
—
59
59
16:00
70.3%
20.7 min
219
231
17:00
Fewer than 200 measured departures
—
82
85
18:00
Fewer than 200 measured departures
—
64
71
19:00
67.6%
27.7 min
346
357
20:00
Fewer than 200 measured departures
—
68
78
21:00
Fewer than 200 measured departures
—
17
19
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
28.514.20.0
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
4422210
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
79.6%
18.4 min
421
442
Tuesday
81.1%
14.9 min
408
418
Wednesday
81.2%
14.3 min
410
421
Thursday
74.3%
28.5 min
413
422
Friday
79.5%
12.4 min
420
435
Saturday
80.3%
10.6 min
385
400
Sunday
75.0%
18.4 min
420
439
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
42.021.00.0
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
3621810
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
163
180
Feb
Fewer than 200 measured departures
—
149
162
Mar
Fewer than 200 measured departures
—
176
186
Apr
83.4%
14.0 min
265
265
May
80.6%
6.9 min
350
360
Jun
72.4%
19.8 min
351
360
Jul
69.1%
33.3 min
340
362
Aug
Fewer than 200 measured departures
—
171
180
Sep
Fewer than 200 measured departures
—
156
156
Oct
81.1%
14.7 min
306
306
Nov
80.3%
13.4 min
243
244
Dec
73.4%
42.0 min
207
216
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 time76.0%2,264
Delayed >15 min20.6%613
Cancelled3.4%100
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.