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 delay08:00–09:002.5min · 279 recorded · 273 measured
Gap to highest-delay hour24.2min08:00 ↔ 22:00
Recorded flights4,474HOU–HRL
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
26.713.40.0
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
4222110
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
Fewer than 200 measured departures
—
0
1
01:00
No observations
—
—
—
02:00
No observations
—
—
—
03:00
No observations
—
—
—
04:00
No observations
—
—
—
05:00
94.7%
5.5 min
208
209
06:00
96.6%
4.2 min
415
422
07:00
Fewer than 200 measured departures
—
116
116
08:00
90.5%
2.5 min
273
279
09:00
90.4%
2.7 min
229
229
10:00
87.1%
6.5 min
357
361
11:00
Fewer than 200 measured departures
—
197
198
12:00
77.7%
12.9 min
233
235
13:00
76.1%
14.4 min
205
206
14:00
71.2%
17.5 min
226
226
15:00
71.9%
13.5 min
231
232
16:00
68.6%
12.2 min
274
275
17:00
64.0%
18.2 min
200
200
18:00
65.9%
15.6 min
387
389
19:00
Fewer than 200 measured departures
—
103
105
20:00
74.7%
11.3 min
293
301
21:00
55.8%
24.5 min
224
225
22:00
53.5%
26.7 min
256
265
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
15.17.60.0
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
6863430
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
77.1%
11.6 min
676
682
Tuesday
80.3%
10.7 min
656
664
Wednesday
78.7%
11.0 min
656
658
Thursday
75.6%
11.9 min
665
674
Friday
76.8%
11.2 min
678
686
Saturday
73.7%
15.1 min
460
464
Sunday
78.0%
11.1 min
636
646
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
22.111.00.0
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
4522260
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
87.6%
4.3 min
372
384
Feb
85.2%
4.5 min
364
364
Mar
78.0%
11.5 min
373
396
Apr
77.8%
11.6 min
388
388
May
69.3%
15.0 min
394
394
Jun
65.4%
22.1 min
399
402
Jul
65.0%
21.2 min
414
416
Aug
75.1%
15.2 min
225
226
Sep
86.2%
3.7 min
224
224
Oct
76.9%
10.6 min
389
390
Nov
85.6%
7.1 min
438
438
Dec
79.4%
10.5 min
447
452
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 time76.5%3,423
Delayed >15 min22.4%1,004
Cancelled1.1%47
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.