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 delay10:00–11:006.4min · 212 recorded · 211 measured
Gap to highest-delay hour29.9min10:00 ↔ 20:00
Recorded flights3,934CLT–SYR
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
36.218.10.0
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
3981990
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
—
63
64
06:00
85.8%
15.1 min
367
372
07:00
Fewer than 200 measured departures
—
146
149
08:00
Fewer than 200 measured departures
—
105
106
09:00
Fewer than 200 measured departures
—
196
200
10:00
84.8%
6.4 min
211
212
11:00
83.3%
10.8 min
299
304
12:00
Fewer than 200 measured departures
—
199
204
13:00
83.3%
9.6 min
329
331
14:00
73.9%
17.8 min
395
398
15:00
77.7%
12.7 min
224
229
16:00
Fewer than 200 measured departures
—
129
130
17:00
68.3%
26.6 min
325
327
18:00
Fewer than 200 measured departures
—
181
185
19:00
Fewer than 200 measured departures
—
124
125
20:00
58.1%
36.2 min
241
245
21:00
Fewer than 200 measured departures
—
101
105
22:00
65.0%
23.0 min
246
248
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
24.212.10.0
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
5892950
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
70.3%
23.0 min
566
574
Tuesday
79.8%
15.5 min
540
545
Wednesday
86.6%
7.7 min
546
554
Thursday
81.4%
12.0 min
575
578
Friday
74.3%
18.4 min
561
567
Saturday
76.3%
16.4 min
514
527
Sunday
68.4%
24.2 min
579
589
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
31.916.00.0
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
80.1%
14.7 min
341
364
Feb
78.0%
18.0 min
309
316
Mar
70.7%
21.7 min
338
344
Apr
80.5%
9.5 min
358
358
May
74.7%
21.5 min
372
372
Jun
76.4%
12.6 min
351
358
Jul
62.6%
31.9 min
356
362
Aug
79.7%
10.4 min
202
205
Sep
Fewer than 200 measured departures
—
195
195
Oct
82.1%
16.5 min
363
364
Nov
80.3%
14.5 min
340
340
Dec
76.4%
16.9 min
356
356
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 time75.6%2,975
Delayed >15 min23.0%906
Cancelled1.3%53
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.