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 delay16:00–17:0013.2min · 515 recorded · 500 measured
Gap to highest-delay hour14.5min16:00 ↔ 21:00
Recorded flights2,260DEN–HYS
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
27.713.80.0
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
6563280
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
90.7%
13.9 min
643
656
07:00
No observations
—
—
—
08:00
No observations
—
—
—
09:00
Fewer than 200 measured departures
—
2
2
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
No observations
—
—
—
13:00
Fewer than 200 measured departures
—
4
4
14:00
No observations
—
—
—
15:00
Fewer than 200 measured departures
—
10
10
16:00
77.4%
13.2 min
500
515
17:00
No observations
—
—
—
18:00
No observations
—
—
—
19:00
75.0%
17.3 min
452
472
20:00
Fewer than 200 measured departures
—
72
74
21:00
79.9%
27.7 min
517
527
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
26.213.10.0
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
3761880
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
81.3%
19.9 min
369
376
Tuesday
Fewer than 200 measured departures
—
193
194
Wednesday
85.4%
10.6 min
370
374
Thursday
82.0%
18.2 min
356
368
Friday
79.9%
26.2 min
358
376
Saturday
Fewer than 200 measured departures
—
190
196
Sunday
76.1%
19.0 min
364
376
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
40.820.40.0
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
2161080
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
79.2%
32.9 min
202
214
Feb
Fewer than 200 measured departures
—
188
192
Mar
85.0%
12.3 min
206
212
Apr
84.2%
13.4 min
202
206
May
81.2%
21.5 min
202
212
Jun
67.3%
30.4 min
202
206
Jul
68.8%
40.8 min
205
214
Aug
Fewer than 200 measured departures
—
103
106
Sep
Fewer than 200 measured departures
—
102
102
Oct
Fewer than 200 measured departures
—
176
176
Nov
Fewer than 200 measured departures
—
198
204
Dec
88.8%
8.3 min
214
216
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 time79.1%1,787
Delayed >15 min18.3%413
Cancelled2.7%60
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.