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 delay08:00–09:000.0min · 220 recorded · 219 measured
Gap to highest-delay hour17.3min08:00 ↔ 17:00
Recorded flights2,577LGB–RNO
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
17.38.70.0
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
3671840
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
Fewer than 200 measured departures
—
101
101
07:00
90.0%
3.8 min
331
333
08:00
92.7%
0.0 min
219
220
09:00
Fewer than 200 measured departures
—
132
133
10:00
89.6%
3.4 min
249
252
11:00
Fewer than 200 measured departures
—
141
141
12:00
Fewer than 200 measured departures
—
114
116
13:00
Fewer than 200 measured departures
—
66
67
14:00
Fewer than 200 measured departures
—
21
21
15:00
Fewer than 200 measured departures
—
39
39
16:00
Fewer than 200 measured departures
—
115
117
17:00
65.9%
17.3 min
290
296
18:00
65.8%
15.4 min
342
344
19:00
73.4%
11.0 min
364
367
20:00
Fewer than 200 measured departures
—
30
30
21:00
No observations
—
—
—
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
13.06.50.0
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
4302150
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
81.8%
9.0 min
384
388
Tuesday
88.7%
1.4 min
355
358
Wednesday
86.7%
3.1 min
352
354
Thursday
80.3%
7.9 min
375
375
Friday
74.2%
13.0 min
380
384
Saturday
81.9%
8.2 min
287
288
Sunday
75.3%
11.2 min
421
430
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
17.48.70.0
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
2741370
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
90.5%
1.2 min
242
242
Feb
83.7%
5.9 min
208
218
Mar
81.7%
6.1 min
224
226
Apr
86.0%
4.4 min
214
214
May
78.8%
7.4 min
217
217
Jun
70.8%
11.9 min
243
244
Jul
77.0%
9.5 min
256
256
Aug
Fewer than 200 measured departures
—
130
130
Sep
Fewer than 200 measured departures
—
126
128
Oct
Fewer than 200 measured departures
—
194
194
Nov
84.6%
6.1 min
234
234
Dec
75.6%
17.4 min
266
274
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 time80.3%2,069
Delayed >15 min18.8%485
Cancelled0.9%23
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.