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 delay08:00–09:002.3min · 612 recorded · 599 measured
Gap to highest-delay hour14.2min08:00 ↔ 10:00
Recorded flights4,012DFW–MLU
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
16.58.30.0
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
6423210
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
89.8%
13.5 min
441
450
06:00
Fewer than 200 measured departures
—
195
199
07:00
No observations
—
—
—
08:00
90.7%
2.3 min
599
612
09:00
No observations
—
—
—
10:00
83.1%
16.5 min
627
642
11:00
Fewer than 200 measured departures
—
70
72
12:00
Fewer than 200 measured departures
—
63
68
13:00
Fewer than 200 measured departures
—
72
72
14:00
Fewer than 200 measured departures
—
34
37
15:00
No observations
—
—
—
16:00
76.9%
10.3 min
593
616
17:00
No observations
—
—
—
18:00
74.0%
15.7 min
573
606
19:00
No observations
—
—
—
20:00
Fewer than 200 measured departures
—
152
159
21:00
80.1%
10.6 min
336
348
22:00
Fewer than 200 measured departures
—
128
131
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
18.19.10.0
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
5832920
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
82.2%
10.3 min
561
583
Tuesday
83.3%
8.4 min
539
563
Wednesday
82.2%
11.1 min
561
565
Thursday
83.1%
7.0 min
562
576
Friday
83.1%
18.1 min
562
578
Saturday
80.1%
13.2 min
538
565
Sunday
84.5%
13.1 min
560
582
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
22.911.50.0
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
4282140
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
87.2%
22.9 min
296
318
Feb
89.1%
3.2 min
293
299
Mar
80.8%
9.2 min
359
371
Apr
80.5%
11.2 min
375
386
May
80.5%
14.0 min
389
412
Jun
79.4%
12.7 min
403
418
Jul
77.6%
15.2 min
420
428
Aug
Fewer than 200 measured departures
—
180
186
Sep
Fewer than 200 measured departures
—
178
180
Oct
88.2%
4.9 min
296
302
Nov
83.0%
10.9 min
336
348
Dec
85.2%
6.1 min
358
364
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 time80.0%3,209
Delayed >15 min16.8%674
Cancelled3.2%129
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.