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 3, 2024 → Jul 31, 2026
Lowest average delay13:00–14:008.1min · 208 recorded · 205 measured
Gap to highest-delay hour2.1min13:00 ↔ 15:00
Recorded flights1,563BHM–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
10.25.10.0
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
2131070
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
—
115
116
06:00
Fewer than 200 measured departures
—
31
32
07:00
Fewer than 200 measured departures
—
2
2
08:00
No observations
—
—
—
09:00
Fewer than 200 measured departures
—
67
67
10:00
Fewer than 200 measured departures
—
126
127
11:00
Fewer than 200 measured departures
—
95
97
12:00
Fewer than 200 measured departures
—
127
127
13:00
82.9%
8.1 min
205
208
14:00
75.1%
9.7 min
213
213
15:00
76.2%
10.2 min
202
206
16:00
Fewer than 200 measured departures
—
81
83
17:00
Fewer than 200 measured departures
—
67
67
18:00
Fewer than 200 measured departures
—
76
77
19:00
No observations
—
—
—
20:00
Fewer than 200 measured departures
—
8
8
21:00
Fewer than 200 measured departures
—
74
74
22:00
Fewer than 200 measured departures
—
58
59
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
16.28.10.0
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
2281140
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
74.7%
12.6 min
221
224
Tuesday
83.3%
6.4 min
221
224
Wednesday
81.6%
5.9 min
223
224
Thursday
70.9%
11.3 min
223
223
Friday
70.1%
16.2 min
224
226
Saturday
81.6%
8.5 min
212
214
Sunday
72.2%
11.9 min
223
228
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
186930
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
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
—
116
124
Feb
Fewer than 200 measured departures
—
112
112
Mar
Fewer than 200 measured departures
—
175
178
Apr
Fewer than 200 measured departures
—
180
180
May
Fewer than 200 measured departures
—
184
186
Jun
Fewer than 200 measured departures
—
178
179
Jul
Fewer than 200 measured departures
—
184
186
Aug
Fewer than 200 measured departures
—
62
62
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
62
62
Nov
Fewer than 200 measured departures
—
114
114
Dec
Fewer than 200 measured departures
—
120
120
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 time75.5%1,180
Delayed >15 min23.5%367
Cancelled1.0%16
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.