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 · Nov 23, 2024 → Jul 31, 2026
Lowest average delay06:00–07:006.5min · 342 recorded · 335 measured
Gap to highest-delay hour6.0min06:00 ↔ 21:00
Recorded flights1,430ILM–MIA
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
12.46.20.0
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
3421710
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
—
131
132
06:00
92.2%
6.5 min
335
342
07:00
Fewer than 200 measured departures
—
46
46
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
Fewer than 200 measured departures
—
3
3
13:00
No observations
—
—
—
14:00
Fewer than 200 measured departures
—
3
3
15:00
Fewer than 200 measured departures
—
15
15
16:00
Fewer than 200 measured departures
—
116
117
17:00
Fewer than 200 measured departures
—
59
61
18:00
Fewer than 200 measured departures
—
74
75
19:00
Fewer than 200 measured departures
—
101
102
20:00
Fewer than 200 measured departures
—
124
126
21:00
75.8%
12.4 min
302
308
22:00
Fewer than 200 measured departures
—
94
94
23:00
Fewer than 200 measured departures
—
6
6
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
12.76.30.0
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
2621310
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
Fewer than 200 measured departures
—
196
200
Tuesday
Fewer than 200 measured departures
—
175
178
Wednesday
Fewer than 200 measured departures
—
178
180
Thursday
87.8%
4.6 min
204
204
Friday
81.2%
9.4 min
202
204
Saturday
77.7%
12.7 min
255
262
Sunday
Fewer than 200 measured departures
—
199
202
Month of year
Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
180900
JanFebMarAprMayJunJulAugSepOctNovDec
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No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
169
180
Feb
Fewer than 200 measured departures
—
138
139
Mar
Fewer than 200 measured departures
—
132
134
Apr
Fewer than 200 measured departures
—
104
104
May
Fewer than 200 measured departures
—
154
155
Jun
Fewer than 200 measured departures
—
168
170
Jul
Fewer than 200 measured departures
—
140
140
Aug
Fewer than 200 measured departures
—
62
64
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
62
62
Nov
Fewer than 200 measured departures
—
66
68
Dec
Fewer than 200 measured departures
—
154
154
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 time81.7%1,168
Delayed >15 min16.9%241
Cancelled1.5%21
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.