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 delay05:00–06:000.0min · 350 recorded · 342 measured
Gap to highest-delay hour31.3min05:00 ↔ 21:00
Recorded flights3,578BQN–MCO
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
31.315.70.0
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
6613310
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
Fewer than 200 measured departures
—
1
1
01:00
Fewer than 200 measured departures
—
20
20
02:00
71.5%
19.7 min
295
301
03:00
77.9%
15.6 min
312
319
04:00
Fewer than 200 measured departures
—
62
63
05:00
94.2%
0.0 min
342
350
06:00
Fewer than 200 measured departures
—
86
86
07:00
Fewer than 200 measured departures
—
72
72
08:00
Fewer than 200 measured departures
—
191
193
09:00
Fewer than 200 measured departures
—
47
47
10:00
Fewer than 200 measured departures
—
15
15
11:00
Fewer than 200 measured departures
—
143
143
12:00
Fewer than 200 measured departures
—
109
109
13:00
Fewer than 200 measured departures
—
81
82
14:00
Fewer than 200 measured departures
—
85
87
15:00
Fewer than 200 measured departures
—
110
110
16:00
Fewer than 200 measured departures
—
124
125
17:00
Fewer than 200 measured departures
—
118
118
18:00
Fewer than 200 measured departures
—
84
87
19:00
Fewer than 200 measured departures
—
74
75
20:00
Fewer than 200 measured departures
—
167
167
21:00
59.5%
31.3 min
237
241
22:00
Fewer than 200 measured departures
—
106
106
23:00
74.3%
15.6 min
649
661
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
16.98.50.0
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
5452730
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
73.1%
14.5 min
520
535
Tuesday
79.1%
15.0 min
450
453
Wednesday
85.6%
8.5 min
438
442
Thursday
76.2%
12.3 min
521
523
Friday
78.1%
14.2 min
538
542
Saturday
74.2%
16.3 min
535
545
Sunday
72.5%
16.9 min
528
538
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
20.410.20.0
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
4352180
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
79.4%
9.7 min
310
324
Feb
81.0%
14.2 min
231
233
Mar
75.5%
9.9 min
249
257
Apr
77.5%
11.9 min
280
280
May
81.5%
8.6 min
363
365
Jun
76.6%
17.1 min
432
435
Jul
73.8%
17.3 min
412
422
Aug
Fewer than 200 measured departures
—
184
186
Sep
Fewer than 200 measured departures
—
116
116
Oct
81.1%
6.8 min
206
208
Nov
74.3%
17.5 min
327
330
Dec
71.2%
20.4 min
420
422
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 time75.7%2,708
Delayed >15 min23.0%822
Cancelled1.3%48
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.