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 delay07:00–08:001.0min · 288 recorded · 285 measured
Gap to highest-delay hour42.7min07:00 ↔ 19:00
Recorded flights4,889DFW–DSM
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
43.721.80.0
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
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
85.7%
15.1 min
636
658
06:00
Fewer than 200 measured departures
—
2
2
07:00
89.1%
1.0 min
285
288
08:00
Fewer than 200 measured departures
—
175
180
09:00
86.6%
5.9 min
298
301
10:00
Fewer than 200 measured departures
—
175
183
11:00
Fewer than 200 measured departures
—
174
179
12:00
77.9%
12.8 min
217
225
13:00
66.2%
30.3 min
382
398
14:00
Fewer than 200 measured departures
—
178
183
15:00
68.5%
26.0 min
577
600
16:00
57.3%
40.8 min
363
377
17:00
71.9%
26.9 min
278
296
18:00
Fewer than 200 measured departures
—
98
102
19:00
57.3%
43.7 min
232
245
20:00
Fewer than 200 measured departures
—
163
169
21:00
59.8%
36.9 min
301
313
22:00
Fewer than 200 measured departures
—
179
190
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
33.016.50.0
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
7113560
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
65.6%
30.9 min
692
711
Tuesday
77.5%
17.1 min
675
694
Wednesday
70.5%
22.8 min
665
690
Thursday
67.5%
33.0 min
689
707
Friday
72.7%
22.1 min
689
709
Saturday
70.0%
27.3 min
627
674
Sunday
70.3%
25.0 min
676
704
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
40.320.20.0
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
4832420
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
72.6%
23.0 min
405
455
Feb
73.1%
20.7 min
398
402
Mar
74.1%
22.6 min
463
483
Apr
76.6%
15.0 min
414
428
May
73.7%
21.8 min
414
433
Jun
59.5%
39.1 min
452
470
Jul
63.6%
40.3 min
462
476
Aug
71.7%
23.1 min
230
236
Sep
71.7%
22.3 min
233
238
Oct
74.1%
20.0 min
382
388
Nov
71.8%
23.7 min
432
446
Dec
67.3%
28.5 min
428
434
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 time68.0%3,326
Delayed >15 min28.4%1,387
Cancelled3.6%176
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.