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 delay05:00–06:002.9min · 547 recorded · 538 measured
Gap to highest-delay hour28.2min05:00 ↔ 20:00
Recorded flights8,076DFW–RDU
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
31.115.60.0
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
1,0705350
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
92.0%
2.9 min
538
547
06:00
91.6%
8.1 min
392
406
07:00
84.6%
8.9 min
924
942
08:00
87.2%
12.0 min
509
520
09:00
Fewer than 200 measured departures
—
193
201
10:00
72.0%
18.8 min
218
222
11:00
75.6%
17.2 min
1,055
1,070
12:00
67.4%
20.2 min
258
262
13:00
67.2%
19.1 min
250
260
14:00
70.1%
22.3 min
588
605
15:00
64.6%
26.9 min
633
650
16:00
70.3%
24.5 min
222
228
17:00
63.9%
27.2 min
502
516
18:00
63.9%
22.4 min
496
520
19:00
60.6%
26.3 min
535
563
20:00
55.3%
31.1 min
320
329
21:00
Fewer than 200 measured departures
—
188
201
22:00
Fewer than 200 measured departures
—
34
34
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
21.710.90.0
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
1,2616310
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
71.4%
21.7 min
1,215
1,242
Tuesday
76.7%
16.2 min
1,020
1,046
Wednesday
74.8%
18.9 min
965
993
Thursday
76.0%
16.3 min
1,205
1,239
Friday
76.0%
14.4 min
1,202
1,239
Saturday
69.1%
21.7 min
1,023
1,056
Sunday
71.4%
20.8 min
1,225
1,261
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
28.214.10.0
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
8104050
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
79.4%
18.6 min
617
682
Feb
80.2%
18.0 min
577
590
Mar
71.4%
16.9 min
688
706
Apr
74.0%
17.9 min
741
752
May
73.8%
13.8 min
787
810
Jun
64.1%
28.2 min
769
797
Jul
64.0%
27.1 min
777
793
Aug
65.8%
24.6 min
363
379
Sep
84.5%
13.9 min
348
358
Oct
80.0%
10.4 min
674
677
Nov
77.1%
13.9 min
742
750
Dec
74.5%
18.8 min
772
782
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 time71.6%5,782
Delayed >15 min25.7%2,073
Cancelled2.7%221
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.