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 delay06:00–07:005.1min · 657 recorded · 647 measured
Gap to highest-delay hour9.1min06:00 ↔ 20:00
Recorded flights2,596ATL–ELP
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
14.27.10.0
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
6573290
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
93.2%
5.1 min
647
657
07:00
No observations
—
—
—
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
Fewer than 200 measured departures
—
32
32
11:00
85.3%
5.8 min
549
559
12:00
Fewer than 200 measured departures
—
63
63
13:00
85.0%
5.6 min
521
528
14:00
Fewer than 200 measured departures
—
112
113
15:00
No observations
—
—
—
16:00
Fewer than 200 measured departures
—
1
1
17:00
Fewer than 200 measured departures
—
1
1
18:00
No observations
—
—
—
19:00
74.5%
13.2 min
302
308
20:00
73.6%
14.2 min
258
260
21:00
Fewer than 200 measured departures
—
74
74
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
14.17.00.0
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
82.0%
10.1 min
373
376
Tuesday
88.5%
6.6 min
373
376
Wednesday
85.4%
6.2 min
370
376
Thursday
85.6%
5.2 min
375
376
Friday
87.1%
5.5 min
365
373
Saturday
80.8%
10.4 min
344
351
Sunday
80.6%
14.1 min
360
368
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
18.59.30.0
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
2501250
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
72.9%
12.8 min
221
234
Feb
84.7%
6.9 min
209
212
Mar
86.0%
4.1 min
236
244
Apr
89.2%
5.0 min
240
240
May
86.3%
5.0 min
248
248
Jun
85.0%
12.9 min
240
240
Jul
78.2%
18.5 min
239
244
Aug
Fewer than 200 measured departures
—
117
120
Sep
Fewer than 200 measured departures
—
120
120
Oct
90.7%
7.4 min
204
204
Nov
86.3%
3.7 min
240
240
Dec
80.9%
11.8 min
246
250
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 time83.2%2,159
Delayed >15 min15.4%401
Cancelled1.4%36
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.