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 delay08:00–09:001.0min · 218 recorded · 218 measured
Gap to highest-delay hour33.9min08:00 ↔ 17:00
Recorded flights3,299DFW–GSO
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
34.917.50.0
00:0003:0006:0009:0012:0015:0018:0021:00
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
5842920
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
—
11
11
06:00
89.8%
11.5 min
244
250
07:00
92.2%
6.7 min
382
396
08:00
89.9%
1.0 min
218
218
09:00
Fewer than 200 measured departures
—
131
133
10:00
Fewer than 200 measured departures
—
1
1
11:00
No observations
—
—
—
12:00
81.0%
7.6 min
316
316
13:00
62.4%
27.4 min
564
584
14:00
Fewer than 200 measured departures
—
85
86
15:00
Fewer than 200 measured departures
—
17
17
16:00
Fewer than 200 measured departures
—
45
45
17:00
62.2%
34.9 min
429
448
18:00
57.2%
33.0 min
201
210
19:00
54.9%
34.0 min
501
522
20:00
Fewer than 200 measured departures
—
60
62
21:00
No observations
—
—
—
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
28.714.40.0
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
4762380
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
64.5%
28.7 min
468
476
Tuesday
76.7%
15.3 min
454
466
Wednesday
76.1%
14.5 min
460
471
Thursday
75.3%
17.1 min
454
467
Friday
71.0%
22.0 min
458
470
Saturday
68.0%
26.5 min
456
475
Sunday
64.4%
27.1 min
455
474
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
32.916.40.0
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
3721860
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
71.5%
30.6 min
221
248
Feb
80.0%
7.0 min
215
218
Mar
71.5%
19.8 min
246
248
Apr
74.1%
13.4 min
336
342
May
72.7%
22.6 min
359
372
Jun
67.3%
22.1 min
346
358
Jul
61.2%
32.9 min
356
362
Aug
Fewer than 200 measured departures
—
178
186
Sep
Fewer than 200 measured departures
—
175
180
Oct
72.3%
20.8 min
300
302
Nov
77.2%
16.8 min
237
245
Dec
63.6%
18.1 min
236
238
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 time68.8%2,270
Delayed >15 min28.3%935
Cancelled2.8%94
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.