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 delay09:00–10:005.3min · 529 recorded · 524 measured
Gap to highest-delay hour4.6min09:00 ↔ 12:00
Recorded flights2,500LGA–MYR
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
9.94.90.0
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
5292650
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
—
33
33
06:00
No observations
—
—
—
07:00
Fewer than 200 measured departures
—
188
202
08:00
Fewer than 200 measured departures
—
193
199
09:00
86.3%
5.3 min
524
529
10:00
Fewer than 200 measured departures
—
90
91
11:00
Fewer than 200 measured departures
—
196
198
12:00
79.3%
9.9 min
482
489
13:00
Fewer than 200 measured departures
—
58
58
14:00
Fewer than 200 measured departures
—
67
68
15:00
Fewer than 200 measured departures
—
55
57
16:00
Fewer than 200 measured departures
—
119
123
17:00
Fewer than 200 measured departures
—
19
20
18:00
Fewer than 200 measured departures
—
70
74
19:00
Fewer than 200 measured departures
—
78
81
20:00
Fewer than 200 measured departures
—
163
169
21:00
Fewer than 200 measured departures
—
96
109
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
19.79.90.0
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
4112060
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.5%
19.7 min
330
346
Tuesday
82.9%
8.6 min
334
340
Wednesday
82.6%
9.0 min
327
333
Thursday
83.1%
8.3 min
331
338
Friday
80.5%
13.2 min
354
367
Saturday
79.9%
11.2 min
402
411
Sunday
79.6%
13.4 min
353
365
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
25.312.70.0
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
3291650
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
Fewer than 200 measured departures
—
122
135
Feb
Fewer than 200 measured departures
—
127
139
Mar
Fewer than 200 measured departures
—
142
158
Apr
83.4%
8.9 min
235
236
May
80.8%
10.3 min
213
213
Jun
79.9%
18.6 min
204
208
Jul
69.8%
25.3 min
212
224
Aug
Fewer than 200 measured departures
—
181
181
Sep
Fewer than 200 measured departures
—
126
126
Oct
89.7%
6.7 min
242
242
Nov
86.8%
2.0 min
303
309
Dec
75.6%
16.9 min
324
329
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 time78.3%1,958
Delayed >15 min18.9%473
Cancelled2.8%69
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.