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 delay07:00–08:001.3min · 326 recorded · 322 measured
Gap to highest-delay hour26.6min07:00 ↔ 22:00
Recorded flights7,343CLE–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
27.913.90.0
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
8774390
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
89.5%
2.2 min
427
430
06:00
84.7%
26.3 min
202
205
07:00
90.1%
1.3 min
322
326
08:00
89.9%
5.5 min
790
796
09:00
87.2%
3.9 min
405
407
10:00
89.8%
6.2 min
354
358
11:00
85.0%
6.6 min
871
877
12:00
84.9%
7.4 min
509
510
13:00
78.9%
10.3 min
332
332
14:00
78.9%
11.2 min
413
416
15:00
71.1%
18.4 min
457
461
16:00
73.6%
15.8 min
424
427
17:00
70.2%
21.1 min
469
472
18:00
72.4%
20.2 min
369
377
19:00
65.6%
16.7 min
256
259
20:00
Fewer than 200 measured departures
—
112
112
21:00
64.8%
23.8 min
318
324
22:00
64.4%
27.9 min
247
254
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
18.19.00.0
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
77.4%
17.3 min
1,089
1,112
Tuesday
83.0%
6.2 min
737
740
Wednesday
86.3%
4.3 min
819
822
Thursday
84.4%
7.3 min
1,089
1,097
Friday
79.8%
11.8 min
1,111
1,121
Saturday
78.8%
13.4 min
1,257
1,261
Sunday
74.0%
18.1 min
1,175
1,190
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
19.79.8-0.2
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
9024510
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
81.0%
10.7 min
657
660
Feb
81.9%
10.1 min
662
670
Mar
75.6%
16.6 min
882
902
Apr
82.9%
8.9 min
777
778
May
84.2%
7.6 min
735
736
Jun
78.2%
19.7 min
706
712
Jul
73.8%
15.7 min
676
688
Aug
72.2%
18.9 min
270
277
Sep
89.0%
-0.2 min
219
219
Oct
87.4%
4.7 min
498
501
Nov
82.6%
8.9 min
533
534
Dec
76.6%
12.9 min
662
666
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 time79.4%5,827
Delayed >15 min19.7%1,450
Cancelled0.9%66
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.