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 13, 2024 → Jul 31, 2026
Lowest average delay07:00–08:00-0.8min · 344 recorded · 341 measured
Gap to highest-delay hour4.9min07:00 ↔ 09:00
Recorded flights1,869CHS–FLL
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
4.11.6-0.8
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
3441720
00:0003:0006:0009:0012:0015:0018:0021:00
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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
—
31
31
07:00
93.8%
-0.8 min
341
344
08:00
Fewer than 200 measured departures
—
128
135
09:00
89.3%
4.1 min
271
272
10:00
Fewer than 200 measured departures
—
167
168
11:00
Fewer than 200 measured departures
—
48
48
12:00
Fewer than 200 measured departures
—
43
44
13:00
Fewer than 200 measured departures
—
57
58
14:00
Fewer than 200 measured departures
—
118
120
15:00
Fewer than 200 measured departures
—
84
87
16:00
Fewer than 200 measured departures
—
67
70
17:00
Fewer than 200 measured departures
—
139
141
18:00
Fewer than 200 measured departures
—
102
104
19:00
Fewer than 200 measured departures
—
85
88
20:00
Fewer than 200 measured departures
—
105
111
21:00
Fewer than 200 measured departures
—
36
36
22:00
Fewer than 200 measured departures
—
11
12
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
16.78.40.0
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
3241620
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
77.1%
10.6 min
314
320
Tuesday
Fewer than 200 measured departures
—
163
167
Wednesday
Fewer than 200 measured departures
—
157
163
Thursday
80.9%
9.7 min
314
318
Friday
76.8%
11.6 min
315
316
Saturday
78.2%
13.3 min
252
261
Sunday
75.2%
16.7 min
318
324
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
14.77.30.0
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
2181090
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
167
177
Feb
Fewer than 200 measured departures
—
166
166
Mar
73.7%
14.7 min
205
218
Apr
Fewer than 200 measured departures
—
196
198
May
Fewer than 200 measured departures
—
144
144
Jun
Fewer than 200 measured departures
—
124
124
Jul
Fewer than 200 measured departures
—
143
148
Aug
Fewer than 200 measured departures
—
96
96
Sep
Fewer than 200 measured departures
—
70
70
Oct
Fewer than 200 measured departures
—
125
125
Nov
80.5%
8.3 min
200
202
Dec
Fewer than 200 measured departures
—
197
201
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 time77.6%1,450
Delayed >15 min20.5%383
Cancelled1.9%36
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.