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 delay09:00–10:002.5min · 327 recorded · 312 measured
Gap to highest-delay hour20.8min09:00 ↔ 18:00
Recorded flights3,886ACT–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
23.211.60.0
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
6043020
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
87.5%
9.9 min
585
604
06:00
Fewer than 200 measured departures
—
47
49
07:00
No observations
—
—
—
08:00
83.0%
4.8 min
312
322
09:00
86.9%
2.5 min
312
327
10:00
84.1%
9.7 min
554
577
11:00
Fewer than 200 measured departures
—
69
72
12:00
Fewer than 200 measured departures
—
2
2
13:00
Fewer than 200 measured departures
—
2
2
14:00
No observations
—
—
—
15:00
No observations
—
—
—
16:00
70.9%
20.0 min
433
454
17:00
69.2%
20.3 min
247
255
18:00
69.8%
23.2 min
546
579
19:00
Fewer than 200 measured departures
—
1
1
20:00
Fewer than 200 measured departures
—
13
13
21:00
82.3%
14.5 min
203
212
22:00
77.8%
14.8 min
400
417
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
17.08.50.0
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
5622810
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
81.5%
12.1 min
535
562
Tuesday
83.0%
9.7 min
522
547
Wednesday
77.8%
14.6 min
537
554
Thursday
79.3%
12.1 min
530
552
Friday
79.5%
14.3 min
536
557
Saturday
76.0%
17.0 min
528
557
Sunday
79.0%
13.9 min
538
557
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
18.69.30.0
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
3721860
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
81.1%
12.9 min
339
372
Feb
78.7%
16.1 min
305
306
Mar
83.3%
11.9 min
347
372
Apr
84.6%
6.7 min
344
358
May
84.8%
5.1 min
349
372
Jun
70.4%
18.6 min
344
360
Jul
78.8%
16.5 min
363
368
Aug
Fewer than 200 measured departures
—
183
188
Sep
Fewer than 200 measured departures
—
178
180
Oct
74.3%
17.9 min
300
302
Nov
81.5%
12.5 min
318
346
Dec
77.8%
17.1 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 time76.1%2,959
Delayed >15 min19.7%767
Cancelled4.1%160
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.