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 · Jun 5, 2025 → Jul 31, 2026
Lowest average delay06:00–07:006.4min · 218 recorded · 210 measured
Recorded flights920DSM–PHL
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
6.43.20.0
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
2181090
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
89.5%
6.4 min
210
218
07:00
Fewer than 200 measured departures
—
1
1
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
Fewer than 200 measured departures
—
151
155
11:00
Fewer than 200 measured departures
—
64
65
12:00
Fewer than 200 measured departures
—
76
77
13:00
Fewer than 200 measured departures
—
133
143
14:00
No observations
—
—
—
15:00
Fewer than 200 measured departures
—
8
9
16:00
Fewer than 200 measured departures
—
7
8
17:00
Fewer than 200 measured departures
—
4
4
18:00
Fewer than 200 measured departures
—
1
1
19:00
Fewer than 200 measured departures
—
181
191
20:00
Fewer than 200 measured departures
—
34
40
21:00
Fewer than 200 measured departures
—
8
8
22:00
No observations
—
—
—
23:00
No observations
—
—
—
Day of week
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
152760
MonTueWedThuFriSatSun
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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
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
Fewer than 200 measured departures
—
120
124
Tuesday
Fewer than 200 measured departures
—
116
121
Wednesday
Fewer than 200 measured departures
—
117
120
Thursday
Fewer than 200 measured departures
—
145
152
Friday
Fewer than 200 measured departures
—
123
131
Saturday
Fewer than 200 measured departures
—
119
127
Sunday
Fewer than 200 measured departures
—
138
145
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
42.621.30.0
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
2601300
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
No observations
—
—
—
Feb
No observations
—
—
—
Mar
No observations
—
—
—
Apr
No observations
—
—
—
May
Fewer than 200 measured departures
—
50
52
Jun
75.0%
26.4 min
220
235
Jul
72.3%
42.6 min
238
260
Aug
Fewer than 200 measured departures
—
122
124
Sep
Fewer than 200 measured departures
—
119
120
Oct
Fewer than 200 measured departures
—
124
124
Nov
Fewer than 200 measured departures
—
5
5
Dec
No observations
—
—
—
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 time75.1%691
Delayed >15 min20.3%187
Cancelled4.6%42
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.