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 delay10:00–11:000.9min · 232 recorded · 231 measured
Gap to highest-delay hour21.0min10:00 ↔ 17:00
Recorded flights3,772DEN–FCA
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
21.910.90.0
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
6453230
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
94.2%
2.5 min
634
641
07:00
93.9%
1.4 min
231
232
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
91.3%
0.9 min
231
232
11:00
84.3%
7.2 min
643
645
12:00
No observations
—
—
—
13:00
82.9%
10.8 min
369
370
14:00
77.2%
16.7 min
639
644
15:00
No observations
—
—
—
16:00
No observations
—
—
—
17:00
71.3%
21.9 min
366
369
18:00
No observations
—
—
—
19:00
71.8%
21.6 min
635
639
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
13.56.80.0
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
5562780
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
81.9%
13.5 min
546
548
Tuesday
82.5%
13.3 min
515
520
Wednesday
81.5%
12.5 min
514
518
Thursday
84.4%
9.2 min
518
524
Friday
83.2%
11.1 min
554
556
Saturday
80.2%
10.7 min
551
556
Sunday
82.2%
10.3 min
550
550
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
19.39.3-0.8
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
4802400
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
77.2%
18.6 min
312
320
Feb
81.3%
13.0 min
278
278
Mar
87.5%
7.4 min
304
306
Apr
87.9%
4.0 min
239
240
May
79.1%
12.4 min
364
366
Jun
76.2%
16.1 min
478
480
Jul
78.3%
15.9 min
383
390
Aug
76.4%
16.9 min
246
248
Sep
90.8%
0.4 min
240
240
Oct
93.7%
-0.8 min
334
334
Nov
89.4%
7.4 min
236
236
Dec
77.3%
19.3 min
334
334
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 time81.7%3,083
Delayed >15 min17.6%665
Cancelled0.6%24
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.