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 delay19:00–20:003.0min · 244 recorded · 244 measured
Gap to highest-delay hour22.4min19:00 ↔ 16:00
Recorded flights2,234DEN–HNL
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
25.412.70.0
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
4852430
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
No observations
—
—
—
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
No observations
—
—
—
11:00
Fewer than 200 measured departures
—
171
173
12:00
83.3%
12.8 min
485
485
13:00
No observations
—
—
—
14:00
Fewer than 200 measured departures
—
19
19
15:00
Fewer than 200 measured departures
—
3
3
16:00
72.1%
25.4 min
434
437
17:00
No observations
—
—
—
18:00
No observations
—
—
—
19:00
90.6%
3.0 min
244
244
20:00
85.0%
4.9 min
412
415
21:00
82.2%
9.9 min
366
368
22:00
Fewer than 200 measured departures
—
90
90
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
16.98.40.0
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
3821910
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
84.1%
8.1 min
309
310
Tuesday
80.9%
12.4 min
299
302
Wednesday
82.9%
11.8 min
299
302
Thursday
81.2%
13.7 min
314
314
Friday
80.9%
16.9 min
314
314
Saturday
79.0%
16.4 min
380
382
Sunday
83.5%
10.4 min
309
310
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
16.48.20.0
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
2481240
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
Fewer than 200 measured departures
—
170
170
Feb
Fewer than 200 measured departures
—
156
156
Mar
76.3%
16.4 min
240
240
Apr
88.8%
6.9 min
240
240
May
81.5%
10.6 min
248
248
Jun
84.1%
9.0 min
239
240
Jul
82.4%
14.5 min
244
248
Aug
Fewer than 200 measured departures
—
100
102
Sep
Fewer than 200 measured departures
—
76
78
Oct
Fewer than 200 measured departures
—
158
158
Nov
Fewer than 200 measured departures
—
139
140
Dec
78.5%
14.0 min
214
214
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 time81.3%1,817
Delayed >15 min18.2%407
Cancelled0.4%10
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.