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 delay06:00–07:00-3.1min · 288 recorded · 286 measured
Gap to highest-delay hour28.2min06:00 ↔ 17:00
Recorded flights3,349AUS–MCI
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
25.111.0-3.1
00:0003:0006:0009:0012:0015:0018:0021:00
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
2961480
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
97.6%
-2.3 min
209
210
06:00
98.6%
-3.1 min
286
288
07:00
95.9%
5.3 min
245
246
08:00
Fewer than 200 measured departures
—
164
166
09:00
92.2%
6.0 min
268
270
10:00
Fewer than 200 measured departures
—
152
154
11:00
Fewer than 200 measured departures
—
123
124
12:00
80.4%
9.5 min
209
210
13:00
Fewer than 200 measured departures
—
74
74
14:00
Fewer than 200 measured departures
—
133
133
15:00
Fewer than 200 measured departures
—
172
173
16:00
Fewer than 200 measured departures
—
155
155
17:00
58.3%
25.1 min
295
296
18:00
60.7%
22.6 min
216
219
19:00
65.8%
19.9 min
225
226
20:00
Fewer than 200 measured departures
—
99
99
21:00
59.0%
24.8 min
261
265
22:00
Fewer than 200 measured departures
—
39
41
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
17.08.50.0
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
5622810
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.2%
16.1 min
548
551
Tuesday
84.8%
4.8 min
453
456
Wednesday
83.8%
6.7 min
450
450
Thursday
76.7%
11.9 min
545
546
Friday
76.4%
12.4 min
559
562
Saturday
75.6%
16.0 min
266
268
Sunday
71.6%
17.0 min
504
516
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
21.010.50.0
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
4222110
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
82.8%
6.2 min
232
245
Feb
83.5%
5.2 min
236
236
Mar
76.2%
13.9 min
294
298
Apr
78.0%
10.4 min
318
318
May
78.2%
13.4 min
330
334
Jun
71.4%
15.8 min
398
399
Jul
70.8%
21.0 min
421
422
Aug
Fewer than 200 measured departures
—
138
138
Sep
Fewer than 200 measured departures
—
138
138
Oct
81.7%
6.4 min
246
246
Nov
78.5%
10.5 min
283
284
Dec
79.7%
11.7 min
291
291
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%2,580
Delayed >15 min22.2%745
Cancelled0.7%24
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.