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 delay05:00–06:00-0.4min · 203 recorded · 203 measured
Gap to highest-delay hour31.6min05:00 ↔ 20:00
Recorded flights7,074BDL–MCO
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
31.215.4-0.4
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
8084040
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
97.0%
-0.4 min
203
203
06:00
94.5%
0.3 min
795
808
07:00
93.3%
-0.1 min
524
529
08:00
90.8%
3.2 min
478
482
09:00
88.1%
5.2 min
335
336
10:00
84.2%
8.3 min
405
410
11:00
82.2%
8.9 min
394
404
12:00
75.0%
13.6 min
344
347
13:00
76.6%
12.0 min
239
242
14:00
78.0%
17.3 min
391
394
15:00
70.2%
21.5 min
289
292
16:00
69.1%
20.6 min
547
557
17:00
68.7%
23.0 min
581
590
18:00
67.6%
24.3 min
364
367
19:00
63.6%
27.6 min
464
472
20:00
58.4%
31.2 min
423
438
21:00
Fewer than 200 measured departures
—
185
189
22:00
Fewer than 200 measured departures
—
14
14
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
21.910.90.0
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
1,2356180
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
76.5%
16.6 min
993
1,030
Tuesday
83.7%
9.0 min
841
845
Wednesday
84.0%
8.6 min
841
841
Thursday
82.1%
9.7 min
981
985
Friday
79.0%
10.4 min
1,038
1,042
Saturday
74.4%
16.6 min
1,224
1,235
Sunday
72.5%
21.9 min
1,057
1,096
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
23.811.90.0
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
8684340
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
79.6%
11.3 min
622
649
Feb
76.5%
16.5 min
698
729
Mar
79.3%
16.4 min
710
729
Apr
79.0%
14.5 min
866
868
May
81.4%
9.0 min
609
612
Jun
78.5%
13.6 min
554
557
Jul
66.6%
23.8 min
566
574
Aug
79.1%
14.4 min
335
336
Sep
Fewer than 200 measured departures
—
176
176
Oct
85.7%
9.1 min
470
471
Nov
83.3%
6.4 min
665
669
Dec
72.0%
17.3 min
704
704
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 time77.3%5,471
Delayed >15 min21.3%1,504
Cancelled1.4%99
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.