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 delay08:00–09:000.6min · 658 recorded · 643 measured
Gap to highest-delay hour11.9min08:00 ↔ 05:00
Recorded flights5,942DFW–LRD
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
12.56.20.0
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
8344170
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
90.9%
12.5 min
441
447
06:00
93.7%
2.6 min
205
211
07:00
No observations
—
—
—
08:00
90.5%
0.6 min
643
658
09:00
No observations
—
—
—
10:00
87.1%
6.6 min
642
658
11:00
No observations
—
—
—
12:00
84.9%
5.0 min
569
586
13:00
Fewer than 200 measured departures
—
53
54
14:00
81.6%
10.0 min
757
786
15:00
Fewer than 200 measured departures
—
52
54
16:00
82.3%
10.4 min
800
834
17:00
Fewer than 200 measured departures
—
36
37
18:00
79.3%
10.4 min
750
791
19:00
Fewer than 200 measured departures
—
41
42
20:00
Fewer than 200 measured departures
—
166
180
21:00
Fewer than 200 measured departures
—
173
185
22:00
74.9%
10.2 min
406
419
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
10.55.30.0
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
8644320
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
81.8%
9.6 min
837
856
Tuesday
87.6%
4.7 min
796
842
Wednesday
82.6%
9.8 min
822
844
Thursday
84.7%
5.0 min
821
844
Friday
85.1%
7.9 min
825
854
Saturday
84.0%
10.0 min
808
838
Sunday
81.5%
10.5 min
825
864
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
12.86.40.0
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
5982990
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
85.9%
9.6 min
509
554
Feb
89.4%
4.5 min
472
480
Mar
86.5%
9.2 min
532
554
Apr
79.9%
9.7 min
562
576
May
81.9%
8.7 min
564
598
Jun
76.0%
12.6 min
566
598
Jul
81.9%
9.0 min
553
568
Aug
79.2%
12.8 min
250
258
Sep
85.6%
8.0 min
236
240
Oct
88.6%
3.8 min
428
430
Nov
86.8%
3.8 min
500
520
Dec
85.9%
7.4 min
562
566
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 time80.9%4,809
Delayed >15 min15.6%925
Cancelled3.5%208
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.