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 delay20:00–21:0011.4min · 235 recorded · 233 measured
Gap to highest-delay hour10.5min20:00 ↔ 21:00
Recorded flights2,789CLT–DSM
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
21.910.90.0
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
3781890
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
Fewer than 200 measured departures
—
2
2
06:00
85.3%
21.7 min
279
289
07:00
88.3%
12.0 min
326
334
08:00
Fewer than 200 measured departures
—
48
48
09:00
Fewer than 200 measured departures
—
33
33
10:00
Fewer than 200 measured departures
—
3
3
11:00
79.7%
14.5 min
344
347
12:00
Fewer than 200 measured departures
—
136
138
13:00
Fewer than 200 measured departures
—
170
172
14:00
80.5%
19.8 min
364
378
15:00
Fewer than 200 measured departures
—
113
113
16:00
Fewer than 200 measured departures
—
90
97
17:00
Fewer than 200 measured departures
—
152
155
18:00
Fewer than 200 measured departures
—
47
48
19:00
Fewer than 200 measured departures
—
23
23
20:00
77.7%
11.4 min
233
235
21:00
65.7%
21.9 min
201
205
22:00
Fewer than 200 measured departures
—
158
169
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
21.110.60.0
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
4072040
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
75.8%
21.1 min
400
406
Tuesday
80.8%
7.8 min
401
404
Wednesday
81.7%
19.4 min
399
407
Thursday
79.2%
20.4 min
389
394
Friday
79.0%
14.9 min
391
400
Saturday
77.8%
19.1 min
351
374
Sunday
73.2%
19.8 min
391
404
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
33.916.90.0
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
2901450
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
84.7%
11.5 min
228
250
Feb
81.0%
24.9 min
221
223
Mar
79.7%
17.8 min
246
252
Apr
82.9%
11.8 min
234
234
May
78.8%
8.9 min
240
243
Jun
65.4%
26.6 min
234
240
Jul
65.7%
33.9 min
239
244
Aug
Fewer than 200 measured departures
—
162
162
Sep
Fewer than 200 measured departures
—
124
124
Oct
85.4%
8.0 min
246
246
Nov
87.0%
9.8 min
277
290
Dec
72.3%
23.2 min
271
281
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 time76.3%2,129
Delayed >15 min21.3%593
Cancelled2.4%67
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.