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 delay09:00–10:002.9min · 206 recorded · 205 measured
Gap to highest-delay hour17.9min09:00 ↔ 16:00
Recorded flights2,785LAS–PIT
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
20.710.40.0
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
5692850
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
Fewer than 200 measured departures
—
105
105
06:00
93.2%
3.6 min
234
235
07:00
92.6%
4.3 min
323
323
08:00
84.4%
7.3 min
294
294
09:00
90.2%
2.9 min
205
206
10:00
Fewer than 200 measured departures
—
73
73
11:00
Fewer than 200 measured departures
—
57
57
12:00
Fewer than 200 measured departures
—
57
57
13:00
Fewer than 200 measured departures
—
91
91
14:00
Fewer than 200 measured departures
—
36
36
15:00
Fewer than 200 measured departures
—
129
130
16:00
62.4%
20.7 min
205
206
17:00
60.9%
19.3 min
567
569
18:00
Fewer than 200 measured departures
—
175
175
19:00
Fewer than 200 measured departures
—
160
161
20:00
Fewer than 200 measured departures
—
16
16
21:00
Fewer than 200 measured departures
—
13
13
22:00
Fewer than 200 measured departures
—
27
27
23:00
Fewer than 200 measured departures
—
11
11
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
15.47.70.0
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
4682340
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
73.3%
15.3 min
423
423
Tuesday
79.2%
9.4 min
356
356
Wednesday
79.9%
8.1 min
343
344
Thursday
73.7%
13.3 min
399
401
Friday
72.9%
14.5 min
413
414
Saturday
81.3%
8.2 min
379
379
Sunday
73.1%
15.4 min
465
468
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
20.110.10.0
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
3021510
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
—
171
174
Feb
Fewer than 200 measured departures
—
169
170
Mar
72.1%
14.9 min
240
240
Apr
77.0%
11.7 min
296
296
May
76.2%
11.4 min
302
302
Jun
65.4%
20.1 min
240
240
Jul
65.8%
17.3 min
228
230
Aug
Fewer than 200 measured departures
—
156
156
Sep
Fewer than 200 measured departures
—
175
176
Oct
80.3%
9.6 min
300
300
Nov
85.0%
5.3 min
273
273
Dec
76.3%
13.2 min
228
228
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 time75.7%2,109
Delayed >15 min24.0%669
Cancelled0.3%7
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.