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 delay10:00–11:006.2min · 381 recorded · 381 measured
Gap to highest-delay hour13.6min10:00 ↔ 15:00
Recorded flights2,070DEN–PNS
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
19.89.90.0
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
3811910
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
—
3
3
07:00
No observations
—
—
—
08:00
Fewer than 200 measured departures
—
9
9
09:00
Fewer than 200 measured departures
—
5
5
10:00
82.9%
6.2 min
381
381
11:00
Fewer than 200 measured departures
—
131
132
12:00
79.2%
12.4 min
250
250
13:00
Fewer than 200 measured departures
—
161
161
14:00
77.6%
10.4 min
241
243
15:00
70.1%
19.8 min
355
355
16:00
Fewer than 200 measured departures
—
172
172
17:00
Fewer than 200 measured departures
—
102
102
18:00
Fewer than 200 measured departures
—
21
21
19:00
77.5%
10.8 min
200
203
20:00
Fewer than 200 measured departures
—
20
20
21:00
Fewer than 200 measured departures
—
7
7
22:00
Fewer than 200 measured departures
—
6
6
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
30.315.10.0
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
3761880
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
68.0%
30.3 min
334
336
Tuesday
Fewer than 200 measured departures
—
198
198
Wednesday
76.6%
11.3 min
218
218
Thursday
75.7%
11.0 min
284
284
Friday
73.8%
14.6 min
336
338
Saturday
75.5%
15.0 min
376
376
Sunday
74.2%
14.2 min
318
320
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
23.811.90.0
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
3041520
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
74
74
Feb
Fewer than 200 measured departures
—
98
98
Mar
77.2%
14.2 min
232
236
Apr
80.3%
9.3 min
244
244
May
76.4%
11.4 min
284
284
Jun
64.1%
18.6 min
298
298
Jul
69.4%
23.8 min
304
304
Aug
Fewer than 200 measured departures
—
90
90
Sep
Fewer than 200 measured departures
—
70
70
Oct
Fewer than 200 measured departures
—
140
140
Nov
Fewer than 200 measured departures
—
148
150
Dec
Fewer than 200 measured departures
—
82
82
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 time73.7%1,526
Delayed >15 min26.0%538
Cancelled0.3%6
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.