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 delay07:00–08:004.7min · 301 recorded · 298 measured
Gap to highest-delay hour9.7min07:00 ↔ 14:00
Recorded flights1,811OGG–SMF
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
14.57.20.0
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
3011510
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
—
1
1
07:00
91.6%
4.7 min
298
301
08:00
92.7%
6.3 min
286
288
09:00
88.7%
9.0 min
231
234
10:00
Fewer than 200 measured departures
—
90
90
11:00
Fewer than 200 measured departures
—
142
143
12:00
Fewer than 200 measured departures
—
199
199
13:00
Fewer than 200 measured departures
—
87
89
14:00
68.8%
14.5 min
250
250
15:00
Fewer than 200 measured departures
—
126
127
16:00
Fewer than 200 measured departures
—
86
87
17:00
Fewer than 200 measured departures
—
2
2
18:00
No observations
—
—
—
19:00
No observations
—
—
—
20:00
No observations
—
—
—
21:00
No observations
—
—
—
22:00
No observations
—
—
—
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
14.57.30.0
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
3121560
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
82.2%
14.5 min
242
244
Tuesday
84.4%
7.4 min
237
237
Wednesday
87.4%
7.4 min
230
232
Thursday
84.3%
10.2 min
236
238
Friday
83.4%
9.8 min
241
244
Saturday
82.6%
8.7 min
311
312
Sunday
83.7%
7.0 min
301
304
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
10.25.10.0
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
2481240
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
Fewer than 200 measured departures
—
134
136
Feb
Fewer than 200 measured departures
—
112
112
Mar
Fewer than 200 measured departures
—
188
192
Apr
Fewer than 200 measured departures
—
163
163
May
Fewer than 200 measured departures
—
162
162
Jun
85.5%
7.2 min
228
228
Jul
84.9%
10.2 min
245
248
Aug
Fewer than 200 measured departures
—
70
70
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
129
130
Nov
Fewer than 200 measured departures
—
139
142
Dec
Fewer than 200 measured departures
—
168
168
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 time83.3%1,509
Delayed >15 min16.0%289
Cancelled0.7%13
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.