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 14, 2024 → Jul 31, 2026
Lowest average delay12:00–13:007.9min · 364 recorded · 359 measured
Gap to highest-delay hour4.5min12:00 ↔ 11:00
Recorded flights1,186ALB–BNA
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
3641820
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
No observations
—
—
—
06:00
Fewer than 200 measured departures
—
13
13
07:00
Fewer than 200 measured departures
—
41
41
08:00
Fewer than 200 measured departures
—
10
10
09:00
Fewer than 200 measured departures
—
48
49
10:00
Fewer than 200 measured departures
—
77
77
11:00
75.0%
12.4 min
216
217
12:00
81.1%
7.9 min
359
364
13:00
Fewer than 200 measured departures
—
187
187
14:00
Fewer than 200 measured departures
—
70
70
15:00
Fewer than 200 measured departures
—
25
25
16:00
Fewer than 200 measured departures
—
45
46
17:00
Fewer than 200 measured departures
—
26
26
18:00
Fewer than 200 measured departures
—
2
2
19:00
No observations
—
—
—
20:00
Fewer than 200 measured departures
—
3
3
21:00
Fewer than 200 measured departures
—
51
51
22:00
Fewer than 200 measured departures
—
5
5
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
16.18.10.0
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
2481240
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
75.9%
8.8 min
245
248
Tuesday
Fewer than 200 measured departures
—
136
138
Wednesday
Fewer than 200 measured departures
—
148
148
Thursday
Fewer than 200 measured departures
—
138
138
Friday
74.8%
16.1 min
242
242
Saturday
Fewer than 200 measured departures
—
131
132
Sunday
Fewer than 200 measured departures
—
138
140
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
160800
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
—
68
72
Feb
Fewer than 200 measured departures
—
55
56
Mar
Fewer than 200 measured departures
—
62
62
Apr
Fewer than 200 measured departures
—
100
100
May
Fewer than 200 measured departures
—
124
126
Jun
Fewer than 200 measured departures
—
156
156
Jul
Fewer than 200 measured departures
—
159
160
Aug
Fewer than 200 measured departures
—
80
80
Sep
Fewer than 200 measured departures
—
78
78
Oct
Fewer than 200 measured departures
—
90
90
Nov
Fewer than 200 measured departures
—
96
96
Dec
Fewer than 200 measured departures
—
110
110
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 time77.2%915
Delayed >15 min22.2%263
Cancelled0.7%8
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.