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 delay05:00–06:00-2.4min · 233 recorded · 233 measured
Gap to highest-delay hour31.1min05:00 ↔ 18:00
Recorded flights4,863AUS–TPA
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
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
28.813.2-2.4
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
5822910
00:0003:0006:0009:0012:0015:0018:0021:00
Hover, tap or focus a point to see its value, sample and source.
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
95.7%
-2.4 min
233
233
06:00
94.9%
0.5 min
255
256
07:00
91.5%
2.1 min
552
556
08:00
91.0%
2.4 min
579
582
09:00
86.8%
7.1 min
204
206
10:00
Fewer than 200 measured departures
—
121
121
11:00
81.9%
10.0 min
271
272
12:00
83.1%
11.5 min
527
533
13:00
Fewer than 200 measured departures
—
89
89
14:00
72.1%
15.7 min
276
276
15:00
71.3%
20.2 min
216
217
16:00
58.3%
23.2 min
285
287
17:00
55.8%
21.4 min
319
321
18:00
57.5%
28.8 min
233
233
19:00
63.1%
20.0 min
388
388
20:00
Fewer than 200 measured departures
—
193
194
21:00
Fewer than 200 measured departures
—
69
70
22:00
Fewer than 200 measured departures
—
28
29
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
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
18.39.10.0
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
7713860
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
73.6%
16.8 min
757
767
Tuesday
85.0%
6.2 min
685
692
Wednesday
81.6%
8.3 min
686
686
Thursday
75.8%
12.5 min
760
760
Friday
77.1%
11.0 min
770
771
Saturday
79.2%
11.4 min
481
484
Sunday
69.8%
18.3 min
699
703
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
19.69.80.0
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
5132570
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
80.7%
11.6 min
394
399
Feb
81.7%
6.6 min
404
405
Mar
75.6%
15.0 min
505
513
Apr
80.0%
8.4 min
451
452
May
74.6%
13.0 min
445
446
Jun
74.9%
14.2 min
435
435
Jul
70.8%
19.6 min
497
500
Aug
74.8%
12.9 min
218
218
Sep
85.7%
3.9 min
216
216
Oct
80.4%
8.0 min
368
368
Nov
77.5%
13.2 min
436
441
Dec
75.7%
13.3 min
469
470
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 time76.9%3,738
Delayed >15 min22.6%1,100
Cancelled0.5%25
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.