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 delay06:00–07:002.4min · 1,054 recorded · 1,031 measured
Gap to highest-delay hour37.8min06:00 ↔ 18:00
Recorded flights7,195AUS–EWR
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
40.220.10.0
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
1,0545270
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
—
68
77
06:00
91.6%
2.4 min
1,031
1,054
07:00
91.7%
3.7 min
484
493
08:00
88.5%
10.2 min
365
368
09:00
Fewer than 200 measured departures
—
181
184
10:00
86.6%
8.9 min
447
454
11:00
84.5%
10.0 min
504
512
12:00
79.5%
10.7 min
433
439
13:00
73.1%
29.2 min
376
379
14:00
65.8%
33.6 min
386
390
15:00
72.8%
25.7 min
455
469
16:00
64.8%
31.9 min
500
516
17:00
71.5%
21.2 min
379
382
18:00
60.7%
40.2 min
356
359
19:00
67.8%
29.2 min
549
567
20:00
67.8%
20.9 min
475
493
21:00
Fewer than 200 measured departures
—
53
59
22:00
No observations
—
—
—
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
28.714.30.0
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
1,0765380
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.9%
18.6 min
1,040
1,076
Tuesday
84.9%
8.4 min
1,027
1,048
Wednesday
82.2%
12.9 min
1,041
1,050
Thursday
76.2%
20.8 min
1,053
1,066
Friday
77.8%
16.0 min
1,053
1,068
Saturday
74.9%
21.4 min
813
841
Sunday
70.8%
28.7 min
1,015
1,046
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
33.816.90.0
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
8014010
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
83.8%
6.7 min
631
663
Feb
85.9%
7.8 min
545
567
Mar
77.9%
13.3 min
719
728
Apr
81.2%
16.6 min
637
652
May
75.3%
30.0 min
554
563
Jun
78.9%
19.4 min
550
552
Jul
69.5%
33.8 min
614
646
Aug
75.2%
16.0 min
315
318
Sep
85.8%
8.2 min
317
319
Oct
77.2%
17.0 min
615
618
Nov
74.8%
19.7 min
787
801
Dec
71.4%
21.5 min
758
768
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 time76.0%5,466
Delayed >15 min21.9%1,576
Cancelled2.1%153
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.