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 delay07:00–08:00-0.4min · 819 recorded · 818 measured
Gap to highest-delay hour20.0min07:00 ↔ 17:00
Recorded flights3,853BNA–ECP
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
19.79.7-0.4
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
8194100
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
Fewer than 200 measured departures
—
62
62
07:00
95.0%
-0.4 min
818
819
08:00
92.3%
1.5 min
390
394
09:00
Fewer than 200 measured departures
—
110
113
10:00
Fewer than 200 measured departures
—
112
112
11:00
Fewer than 200 measured departures
—
132
132
12:00
76.1%
10.8 min
276
278
13:00
Fewer than 200 measured departures
—
175
175
14:00
76.3%
11.9 min
300
300
15:00
Fewer than 200 measured departures
—
170
170
16:00
73.4%
11.6 min
304
306
17:00
59.9%
19.7 min
267
269
18:00
66.6%
18.3 min
371
374
19:00
Fewer than 200 measured departures
—
187
188
20:00
Fewer than 200 measured departures
—
118
118
21:00
Fewer than 200 measured departures
—
28
28
22:00
Fewer than 200 measured departures
—
15
15
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
13.16.60.0
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
6293150
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
78.4%
13.1 min
522
523
Tuesday
85.9%
4.9 min
505
508
Wednesday
80.4%
7.4 min
501
505
Thursday
76.9%
10.8 min
523
525
Friday
78.9%
10.1 min
540
541
Saturday
81.7%
8.0 min
619
622
Sunday
77.0%
11.0 min
625
629
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
14.97.40.0
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
4162080
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
88.1%
5.7 min
251
264
Feb
82.7%
4.6 min
260
260
Mar
78.9%
9.2 min
374
375
Apr
81.9%
9.6 min
387
388
May
74.5%
12.5 min
416
416
Jun
71.2%
14.7 min
392
394
Jul
70.1%
14.9 min
408
408
Aug
81.5%
7.9 min
211
211
Sep
Fewer than 200 measured departures
—
180
180
Oct
83.7%
8.1 min
331
331
Nov
86.2%
5.7 min
318
318
Dec
81.1%
9.5 min
307
308
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 time79.4%3,061
Delayed >15 min20.1%774
Cancelled0.5%18
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.