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 delay07:00–08:005.2min · 350 recorded · 346 measured
Gap to highest-delay hour28.4min07:00 ↔ 06:00
Recorded flights3,566CLT–MKE
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
33.616.80.0
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
5052530
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
—
2
2
06:00
83.8%
33.6 min
241
246
07:00
90.5%
5.2 min
346
350
08:00
Fewer than 200 measured departures
—
89
89
09:00
Fewer than 200 measured departures
—
64
67
10:00
Fewer than 200 measured departures
—
95
95
11:00
77.4%
17.1 min
314
319
12:00
Fewer than 200 measured departures
—
192
193
13:00
71.4%
17.1 min
248
249
14:00
76.3%
20.9 min
346
352
15:00
Fewer than 200 measured departures
—
88
88
16:00
69.4%
22.0 min
493
505
17:00
Fewer than 200 measured departures
—
17
17
18:00
67.7%
24.6 min
368
377
19:00
Fewer than 200 measured departures
—
1
1
20:00
Fewer than 200 measured departures
—
124
125
21:00
Fewer than 200 measured departures
—
189
189
22:00
68.5%
31.1 min
267
275
23:00
Fewer than 200 measured departures
—
27
27
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
32.616.30.0
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
5482740
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
72.6%
29.1 min
526
534
Tuesday
77.5%
12.5 min
484
488
Wednesday
79.5%
15.1 min
483
486
Thursday
81.1%
18.5 min
525
536
Friday
76.1%
14.3 min
518
526
Saturday
79.2%
14.6 min
437
448
Sunday
67.7%
32.6 min
538
548
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
34.717.40.0
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
3681840
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
80.1%
10.4 min
271
286
Feb
79.2%
15.2 min
279
286
Mar
75.4%
18.9 min
345
354
Apr
80.2%
14.0 min
354
356
May
73.8%
15.2 min
363
368
Jun
68.5%
27.0 min
340
349
Jul
64.2%
30.8 min
344
349
Aug
Fewer than 200 measured departures
—
152
152
Sep
Fewer than 200 measured departures
—
178
178
Oct
83.4%
15.5 min
265
266
Nov
85.3%
15.2 min
300
302
Dec
70.3%
34.7 min
320
320
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 time74.9%2,671
Delayed >15 min23.6%840
Cancelled1.5%55
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.