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 delay06:00–07:00-1.2min · 216 recorded · 209 measured
Gap to highest-delay hour17.9min06:00 ↔ 18:00
Recorded flights3,832AEX–DFW
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
16.77.8-1.2
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
5882940
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
87.7%
12.0 min
422
436
06:00
94.7%
-1.2 min
209
216
07:00
No observations
—
—
—
08:00
86.5%
3.0 min
569
588
09:00
Fewer than 200 measured departures
—
32
32
10:00
80.2%
12.1 min
551
568
11:00
Fewer than 200 measured departures
—
49
50
12:00
Fewer than 200 measured departures
—
34
37
13:00
Fewer than 200 measured departures
—
1
1
14:00
Fewer than 200 measured departures
—
35
37
15:00
Fewer than 200 measured departures
—
70
72
16:00
78.6%
11.8 min
519
546
17:00
Fewer than 200 measured departures
—
69
71
18:00
75.2%
16.7 min
504
538
19:00
No observations
—
—
—
20:00
No observations
—
—
—
21:00
78.6%
15.3 min
550
573
22:00
Fewer than 200 measured departures
—
64
67
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
15.17.50.0
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
5532770
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
80.0%
15.1 min
540
552
Tuesday
86.4%
7.3 min
513
543
Wednesday
83.5%
10.3 min
528
545
Thursday
78.0%
12.5 min
518
542
Friday
82.8%
9.6 min
528
547
Saturday
78.5%
14.1 min
526
550
Sunday
83.8%
8.5 min
525
553
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
20.010.00.0
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
3701850
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
86.6%
4.9 min
292
320
Feb
79.7%
9.7 min
305
308
Mar
79.3%
12.0 min
353
370
Apr
78.8%
9.6 min
344
360
May
84.3%
12.0 min
351
368
Jun
81.6%
20.0 min
343
360
Jul
83.7%
8.0 min
361
368
Aug
Fewer than 200 measured departures
—
171
186
Sep
Fewer than 200 measured departures
—
176
180
Oct
80.5%
14.9 min
298
302
Nov
85.7%
5.8 min
328
348
Dec
80.1%
10.9 min
356
362
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 time78.5%3,010
Delayed >15 min17.4%668
Cancelled4.0%154
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.