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 delay08:00–09:002.2min · 212 recorded · 211 measured
Recorded flights1,147LAX–SUN
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
2.21.10.0
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
2121060
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
No observations
—
—
—
07:00
Fewer than 200 measured departures
—
29
29
08:00
95.3%
2.2 min
211
212
09:00
Fewer than 200 measured departures
—
18
18
10:00
Fewer than 200 measured departures
—
66
66
11:00
Fewer than 200 measured departures
—
128
129
12:00
Fewer than 200 measured departures
—
194
194
13:00
Fewer than 200 measured departures
—
160
160
14:00
Fewer than 200 measured departures
—
19
19
15:00
Fewer than 200 measured departures
—
19
20
16:00
Fewer than 200 measured departures
—
131
134
17:00
Fewer than 200 measured departures
—
12
12
18:00
Fewer than 200 measured departures
—
73
74
19:00
Fewer than 200 measured departures
—
80
80
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
5.93.00.0
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
2421210
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
Fewer than 200 measured departures
—
135
137
Tuesday
Fewer than 200 measured departures
—
104
104
Wednesday
Fewer than 200 measured departures
—
139
139
Thursday
Fewer than 200 measured departures
—
135
135
Friday
Fewer than 200 measured departures
—
187
190
Saturday
88.0%
5.9 min
241
242
Sunday
Fewer than 200 measured departures
—
199
200
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
1.00.50.0
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
2111060
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
—
182
184
Feb
Fewer than 200 measured departures
—
160
162
Mar
Fewer than 200 measured departures
—
174
174
Apr
Fewer than 200 measured departures
—
16
16
May
Fewer than 200 measured departures
—
16
16
Jun
Fewer than 200 measured departures
—
87
87
Jul
98.1%
0.2 min
211
211
Aug
Fewer than 200 measured departures
—
91
91
Sep
Fewer than 200 measured departures
—
26
26
Oct
Fewer than 200 measured departures
—
32
32
Nov
No observations
—
—
—
Dec
Fewer than 200 measured departures
—
145
148
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 time89.1%1,022
Delayed >15 min10.3%118
Cancelled0.6%7
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.