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 delay11:00–12:005.2min · 243 recorded · 242 measured
Gap to highest-delay hour17.4min11:00 ↔ 15:00
Recorded flights2,743MCI–MIA
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
22.611.30.0
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
6583290
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
89.5%
7.1 min
646
658
06:00
Fewer than 200 measured departures
—
17
17
07:00
Fewer than 200 measured departures
—
146
149
08:00
Fewer than 200 measured departures
—
127
128
09:00
Fewer than 200 measured departures
—
60
61
10:00
Fewer than 200 measured departures
—
38
38
11:00
84.3%
5.2 min
242
243
12:00
Fewer than 200 measured departures
—
66
67
13:00
Fewer than 200 measured departures
—
71
71
14:00
Fewer than 200 measured departures
—
138
139
15:00
62.0%
22.6 min
213
215
16:00
Fewer than 200 measured departures
—
24
24
17:00
Fewer than 200 measured departures
—
136
139
18:00
Fewer than 200 measured departures
—
1
1
19:00
Fewer than 200 measured departures
—
135
137
20:00
Fewer than 200 measured departures
—
163
165
21:00
75.2%
16.9 min
403
413
22:00
Fewer than 200 measured departures
—
78
78
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
17.99.00.0
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
4542270
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
76.7%
14.3 min
394
409
Tuesday
86.9%
4.8 min
327
335
Wednesday
83.2%
5.9 min
322
325
Thursday
75.9%
17.3 min
398
399
Friday
78.1%
12.0 min
410
410
Saturday
78.3%
13.3 min
451
454
Sunday
74.9%
17.9 min
402
411
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
21.710.90.0
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
4142070
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
84.3%
12.4 min
274
288
Feb
84.9%
7.0 min
324
325
Mar
76.4%
16.5 min
399
414
Apr
81.2%
7.4 min
261
261
May
79.4%
8.5 min
243
243
Jun
77.3%
14.9 min
282
284
Jul
67.7%
21.7 min
291
294
Aug
Fewer than 200 measured departures
—
70
70
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
102
102
Nov
Fewer than 200 measured departures
—
171
173
Dec
73.1%
14.0 min
227
229
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 time77.7%2,130
Delayed >15 min20.9%574
Cancelled1.4%39
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.