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 delay08:00–09:009.7min · 690 recorded · 679 measured
Gap to highest-delay hour29.9min08:00 ↔ 17:00
Recorded flights4,962DFW–FAT
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
39.619.80.0
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
6903450
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
—
70
73
06:00
87.2%
11.7 min
641
657
07:00
Fewer than 200 measured departures
—
144
146
08:00
84.8%
9.7 min
679
690
09:00
Fewer than 200 measured departures
—
48
48
10:00
78.1%
15.9 min
525
539
11:00
Fewer than 200 measured departures
—
112
115
12:00
67.0%
28.9 min
531
545
13:00
Fewer than 200 measured departures
—
95
103
14:00
Fewer than 200 measured departures
—
119
123
15:00
Fewer than 200 measured departures
—
110
118
16:00
60.6%
34.0 min
274
278
17:00
54.9%
39.6 min
346
352
18:00
Fewer than 200 measured departures
—
8
8
19:00
Fewer than 200 measured departures
—
4
4
20:00
Fewer than 200 measured departures
—
176
181
21:00
56.4%
33.1 min
459
474
22:00
44.5%
34.1 min
229
237
23:00
79.2%
15.2 min
264
271
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
28.214.10.0
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
7363680
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
68.2%
25.2 min
704
720
Tuesday
73.4%
16.8 min
655
673
Wednesday
73.1%
18.8 min
665
683
Thursday
70.3%
28.2 min
710
724
Friday
72.7%
18.5 min
708
726
Saturday
68.4%
23.4 min
675
700
Sunday
68.8%
27.8 min
717
736
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
33.716.90.0
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
6023010
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
70.1%
33.0 min
354
385
Feb
80.1%
12.4 min
331
334
Mar
74.4%
26.2 min
390
394
Apr
73.8%
16.7 min
423
434
May
73.9%
25.0 min
521
538
Jun
59.0%
33.7 min
558
578
Jul
60.9%
24.4 min
593
602
Aug
69.1%
26.1 min
252
258
Sep
80.8%
11.9 min
234
240
Oct
78.3%
10.4 min
415
420
Nov
73.0%
27.0 min
378
390
Dec
68.1%
18.1 min
385
389
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 time68.8%3,416
Delayed >15 min28.6%1,418
Cancelled2.6%128
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.