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 delay07:00–08:00-1.1min · 768 recorded · 749 measured
Gap to highest-delay hour32.8min07:00 ↔ 14:00
Recorded flights4,838JFK–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
31.715.3-1.1
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
7683840
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
93.6%
0.2 min
579
596
07:00
95.1%
-1.1 min
749
768
08:00
87.4%
3.7 min
270
280
09:00
Fewer than 200 measured departures
—
103
106
10:00
Fewer than 200 measured departures
—
149
154
11:00
86.4%
4.5 min
631
647
12:00
79.4%
10.8 min
321
334
13:00
Fewer than 200 measured departures
—
154
162
14:00
64.8%
31.7 min
273
281
15:00
74.1%
15.5 min
370
379
16:00
Fewer than 200 measured departures
—
177
186
17:00
Fewer than 200 measured departures
—
99
103
18:00
Fewer than 200 measured departures
—
119
119
19:00
71.8%
20.6 min
386
402
20:00
62.1%
20.7 min
224
233
21:00
Fewer than 200 measured departures
—
83
88
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
18.79.30.0
MonTueWedThuFriSatSun
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
7123560
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
77.4%
13.1 min
671
705
Tuesday
83.1%
10.0 min
657
673
Wednesday
84.7%
4.3 min
645
663
Thursday
79.2%
12.9 min
688
692
Friday
80.1%
11.2 min
693
706
Saturday
80.2%
11.2 min
666
687
Sunday
75.9%
18.7 min
667
712
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
23.711.90.0
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
5512760
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
82.1%
7.8 min
504
522
Feb
76.7%
16.0 min
519
550
Mar
78.2%
16.5 min
536
551
Apr
82.5%
6.2 min
514
520
May
85.9%
2.6 min
377
381
Jun
81.4%
7.6 min
354
360
Jul
72.6%
23.7 min
332
372
Aug
Fewer than 200 measured departures
—
184
186
Sep
Fewer than 200 measured departures
—
174
174
Oct
83.3%
6.5 min
317
319
Nov
87.9%
5.2 min
398
408
Dec
69.5%
22.9 min
478
495
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 time77.5%3,751
Delayed >15 min19.3%936
Cancelled3.1%151
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.