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 delay07:00–08:003.0min · 568 recorded · 553 measured
Gap to highest-delay hour34.2min07:00 ↔ 19:00
Recorded flights3,316LGA–RSW
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
37.318.60.0
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
8784390
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
No observations
—
—
—
06:00
No observations
—
—
—
07:00
93.0%
3.0 min
553
568
08:00
Fewer than 200 measured departures
—
68
75
09:00
Fewer than 200 measured departures
—
17
18
10:00
Fewer than 200 measured departures
—
128
128
11:00
78.9%
13.4 min
787
809
12:00
Fewer than 200 measured departures
—
91
97
13:00
Fewer than 200 measured departures
—
18
19
14:00
Fewer than 200 measured departures
—
89
93
15:00
66.9%
25.5 min
852
878
16:00
Fewer than 200 measured departures
—
20
20
17:00
Fewer than 200 measured departures
—
10
10
18:00
Fewer than 200 measured departures
—
62
64
19:00
61.9%
37.3 min
517
537
20:00
No observations
—
—
—
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
28.214.10.0
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
4842420
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
67.8%
28.2 min
454
482
Tuesday
79.2%
14.1 min
472
482
Wednesday
79.4%
10.0 min
471
480
Thursday
77.2%
15.6 min
464
474
Friday
75.0%
22.8 min
468
482
Saturday
79.0%
15.4 min
423
432
Sunday
71.7%
24.1 min
460
484
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
34.917.50.0
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
3701850
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
76.0%
13.5 min
342
360
Feb
72.4%
20.1 min
312
328
Mar
68.2%
23.4 min
349
370
Apr
79.7%
11.7 min
354
360
May
80.0%
10.3 min
290
296
Jun
69.8%
23.5 min
222
230
Jul
73.5%
32.2 min
219
234
Aug
Fewer than 200 measured departures
—
118
120
Sep
Fewer than 200 measured departures
—
120
120
Oct
Fewer than 200 measured departures
—
196
198
Nov
78.4%
17.4 min
334
336
Dec
70.2%
34.9 min
356
364
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 time73.3%2,429
Delayed >15 min23.6%783
Cancelled3.1%104
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.