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 delay08:00–09:000.9min · 265 recorded · 262 measured
Gap to highest-delay hour18.4min08:00 ↔ 16:00
Recorded flights3,478DFW–GJT
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
19.39.70.0
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
5672840
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
94.0%
2.8 min
216
218
06:00
90.7%
2.1 min
430
438
07:00
No observations
—
—
—
08:00
90.1%
0.9 min
262
265
09:00
Fewer than 200 measured departures
—
70
72
10:00
84.3%
8.3 min
561
567
11:00
Fewer than 200 measured departures
—
58
58
12:00
74.9%
16.1 min
323
329
13:00
Fewer than 200 measured departures
—
14
14
14:00
82.3%
9.8 min
361
367
15:00
Fewer than 200 measured departures
—
69
70
16:00
71.8%
19.3 min
419
431
17:00
Fewer than 200 measured departures
—
3
3
18:00
Fewer than 200 measured departures
—
3
3
19:00
80.4%
10.4 min
306
313
20:00
Fewer than 200 measured departures
—
164
166
21:00
Fewer than 200 measured departures
—
146
155
22:00
Fewer than 200 measured departures
—
9
9
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
14.27.10.0
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
5032520
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
79.4%
8.8 min
499
503
Tuesday
82.2%
14.2 min
484
495
Wednesday
85.3%
5.9 min
489
496
Thursday
87.8%
5.0 min
483
492
Friday
84.5%
6.8 min
489
498
Saturday
78.9%
11.3 min
483
492
Sunday
81.1%
12.9 min
487
502
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
22.811.40.0
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
3681840
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
87.9%
6.2 min
248
258
Feb
89.5%
2.3 min
248
250
Mar
86.4%
3.8 min
301
308
Apr
77.1%
10.5 min
297
300
May
81.1%
13.2 min
355
364
Jun
73.7%
22.8 min
346
360
Jul
81.6%
9.3 min
359
368
Aug
Fewer than 200 measured departures
—
134
134
Sep
Fewer than 200 measured departures
—
174
176
Oct
81.9%
10.0 min
299
301
Nov
85.3%
7.3 min
341
347
Dec
84.9%
5.1 min
312
312
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 time81.2%2,824
Delayed >15 min17.0%590
Cancelled1.8%64
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.