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 delay06:00–07:001.8min · 263 recorded · 260 measured
Gap to highest-delay hour28.7min06:00 ↔ 19:00
Recorded flights2,466DAL–IND
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
30.615.30.0
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
3141570
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
—
129
130
06:00
93.9%
1.8 min
260
263
07:00
91.3%
4.5 min
229
233
08:00
90.4%
5.2 min
312
314
09:00
Fewer than 200 measured departures
—
143
143
10:00
Fewer than 200 measured departures
—
60
60
11:00
Fewer than 200 measured departures
—
43
43
12:00
Fewer than 200 measured departures
—
53
55
13:00
Fewer than 200 measured departures
—
31
31
14:00
Fewer than 200 measured departures
—
14
14
15:00
Fewer than 200 measured departures
—
93
93
16:00
Fewer than 200 measured departures
—
38
39
17:00
Fewer than 200 measured departures
—
173
173
18:00
62.0%
24.7 min
250
251
19:00
51.2%
30.6 min
301
309
20:00
55.6%
25.6 min
297
299
21:00
Fewer than 200 measured departures
—
15
16
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
17.58.80.0
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
3911960
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
77.4%
13.4 min
363
368
Tuesday
79.0%
12.9 min
323
326
Wednesday
78.5%
11.9 min
321
323
Thursday
77.0%
12.1 min
361
364
Friday
77.1%
15.2 min
363
368
Saturday
69.4%
16.1 min
323
326
Sunday
69.3%
17.5 min
387
391
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
22.911.40.0
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
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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
—
162
170
Feb
Fewer than 200 measured departures
—
188
188
Mar
71.3%
17.9 min
223
224
Apr
76.9%
14.6 min
242
242
May
71.7%
15.9 min
254
256
Jun
65.7%
22.9 min
239
240
Jul
68.1%
21.2 min
241
244
Aug
Fewer than 200 measured departures
—
98
98
Sep
Fewer than 200 measured departures
—
94
94
Oct
Fewer than 200 measured departures
—
199
202
Nov
81.4%
8.7 min
242
248
Dec
74.5%
15.2 min
259
260
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 time74.5%1,838
Delayed >15 min24.5%603
Cancelled1.0%25
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.