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 2, 2026
Lowest average delay06:00–07:0011.9min · 336 recorded · 328 measured
Gap to highest-delay hour23.1min06:00 ↔ 21:00
Recorded flights1,868BDL–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
35.017.50.0
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
3511760
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
Fewer than 200 measured departures
—
62
66
06:00
88.7%
11.9 min
328
336
07:00
Fewer than 200 measured departures
—
60
61
08:00
Fewer than 200 measured departures
—
160
164
09:00
Fewer than 200 measured departures
—
34
34
10:00
Fewer than 200 measured departures
—
107
107
11:00
Fewer than 200 measured departures
—
56
56
12:00
Fewer than 200 measured departures
—
49
49
13:00
Fewer than 200 measured departures
—
50
50
14:00
Fewer than 200 measured departures
—
160
162
15:00
Fewer than 200 measured departures
—
36
36
16:00
Fewer than 200 measured departures
—
166
169
17:00
Fewer than 200 measured departures
—
4
4
18:00
Fewer than 200 measured departures
—
63
64
19:00
Fewer than 200 measured departures
—
83
85
20:00
No observations
—
—
—
21:00
64.4%
35.0 min
337
351
22:00
Fewer than 200 measured departures
—
72
74
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
28.214.10.0
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
2741370
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
78.7%
18.3 min
263
272
Tuesday
84.3%
6.4 min
248
253
Wednesday
78.9%
10.4 min
265
269
Thursday
74.1%
20.6 min
263
269
Friday
76.4%
28.2 min
258
264
Saturday
76.5%
20.2 min
264
267
Sunday
76.7%
23.8 min
266
274
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
11.95.90.0
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
2801400
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
—
81
92
Feb
Fewer than 200 measured departures
—
82
86
Mar
82.4%
11.9 min
210
215
Apr
Fewer than 200 measured departures
—
180
180
May
80.8%
11.4 min
214
220
Jun
Fewer than 200 measured departures
—
119
122
Jul
Fewer than 200 measured departures
—
58
65
Aug
Fewer than 200 measured departures
—
162
165
Sep
80.2%
11.3 min
227
228
Oct
82.9%
8.6 min
280
280
Nov
Fewer than 200 measured departures
—
89
89
Dec
Fewer than 200 measured departures
—
125
126
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 time76.2%1,423
Delayed >15 min21.6%404
Cancelled2.2%41
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.