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 delay06:00–07:001.9min · 362 recorded · 359 measured
Gap to highest-delay hour11.0min06:00 ↔ 13:00
Recorded flights2,551BIL–DFW
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
12.86.40.0
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
6443220
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
Fewer than 200 measured departures
—
72
72
06:00
93.3%
1.9 min
359
362
07:00
Fewer than 200 measured departures
—
187
187
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
Fewer than 200 measured departures
—
14
14
11:00
82.2%
6.6 min
640
644
12:00
No observations
—
—
—
13:00
76.2%
12.8 min
395
397
14:00
76.0%
11.8 min
254
259
15:00
Fewer than 200 measured departures
—
1
1
16:00
No observations
—
—
—
17:00
Fewer than 200 measured departures
—
1
1
18:00
Fewer than 200 measured departures
—
1
1
19:00
86.6%
5.2 min
298
303
20:00
78.2%
10.9 min
238
239
21:00
Fewer than 200 measured departures
—
69
71
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
11.75.80.0
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
3671840
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
82.1%
8.6 min
363
365
Tuesday
86.7%
4.9 min
360
362
Wednesday
84.0%
6.1 min
362
364
Thursday
82.3%
6.7 min
355
361
Friday
85.6%
5.5 min
361
367
Saturday
79.9%
11.7 min
363
366
Sunday
81.6%
9.1 min
365
366
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
11.15.50.0
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
2481240
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
—
189
195
Feb
Fewer than 200 measured departures
—
195
201
Mar
84.6%
4.1 min
246
248
Apr
75.9%
9.6 min
241
241
May
81.9%
11.1 min
248
248
Jun
77.8%
10.1 min
239
240
Jul
82.6%
7.6 min
247
248
Aug
Fewer than 200 measured departures
—
123
124
Sep
Fewer than 200 measured departures
—
118
120
Oct
92.7%
2.4 min
204
204
Nov
87.7%
3.4 min
236
236
Dec
84.0%
9.1 min
243
246
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 time82.4%2,103
Delayed >15 min16.7%426
Cancelled0.9%22
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.