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 delay08:00–09:003.9min · 410 recorded · 408 measured
Gap to highest-delay hour32.4min08:00 ↔ 07:00
Recorded flights2,551AZA–PVU
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
36.318.20.0
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
4102050
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
—
111
111
07:00
88.9%
36.3 min
207
208
08:00
91.9%
3.9 min
408
410
09:00
89.0%
6.0 min
245
245
10:00
Fewer than 200 measured departures
—
158
158
11:00
85.6%
20.3 min
208
208
12:00
Fewer than 200 measured departures
—
177
177
13:00
Fewer than 200 measured departures
—
93
93
14:00
Fewer than 200 measured departures
—
54
54
15:00
Fewer than 200 measured departures
—
63
63
16:00
Fewer than 200 measured departures
—
137
137
17:00
Fewer than 200 measured departures
—
121
122
18:00
Fewer than 200 measured departures
—
64
64
19:00
Fewer than 200 measured departures
—
146
147
20:00
67.5%
23.5 min
209
210
21:00
Fewer than 200 measured departures
—
127
128
22:00
Fewer than 200 measured departures
—
16
16
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
27.813.90.0
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
4442220
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
79.9%
10.1 min
403
406
Tuesday
82.4%
7.6 min
238
238
Wednesday
84.6%
5.0 min
280
280
Thursday
74.7%
27.8 min
399
400
Friday
79.4%
26.8 min
431
432
Saturday
83.5%
18.7 min
351
351
Sunday
81.5%
16.6 min
442
444
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
33.917.00.0
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
3221610
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
—
192
192
Feb
Fewer than 200 measured departures
—
190
190
Mar
78.5%
12.8 min
321
322
Apr
69.9%
33.9 min
262
262
May
78.8%
26.8 min
226
226
Jun
86.3%
20.8 min
234
235
Jul
80.0%
13.7 min
225
228
Aug
Fewer than 200 measured departures
—
108
108
Sep
Fewer than 200 measured departures
—
94
94
Oct
Fewer than 200 measured departures
—
172
172
Nov
84.8%
11.8 min
244
246
Dec
73.9%
18.9 min
276
276
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 time80.3%2,048
Delayed >15 min19.4%496
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.