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 delay08:00–09:00-2.2min · 292 recorded · 286 measured
Gap to highest-delay hour10.6min08:00 ↔ 10:00
Recorded flights2,128BDL–DJT
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
8.33.1-2.2
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
2921460
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
—
32
32
06:00
Fewer than 200 measured departures
—
62
63
07:00
94.1%
-0.2 min
221
223
08:00
92.3%
-2.2 min
286
292
09:00
Fewer than 200 measured departures
—
96
98
10:00
84.0%
8.3 min
212
215
11:00
Fewer than 200 measured departures
—
197
199
12:00
Fewer than 200 measured departures
—
126
128
13:00
Fewer than 200 measured departures
—
57
59
14:00
Fewer than 200 measured departures
—
94
95
15:00
Fewer than 200 measured departures
—
105
106
16:00
Fewer than 200 measured departures
—
121
126
17:00
Fewer than 200 measured departures
—
68
69
18:00
Fewer than 200 measured departures
—
139
140
19:00
Fewer than 200 measured departures
—
172
172
20:00
Fewer than 200 measured departures
—
87
89
21:00
Fewer than 200 measured departures
—
19
21
22:00
Fewer than 200 measured departures
—
1
1
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
24.712.40.0
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
3311660
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
78.7%
16.2 min
319
331
Tuesday
85.3%
5.8 min
272
275
Wednesday
82.1%
4.5 min
274
274
Thursday
76.3%
11.9 min
312
312
Friday
81.4%
8.5 min
312
312
Saturday
80.0%
10.0 min
290
296
Sunday
68.4%
24.7 min
316
328
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
21.610.80.0
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
2511260
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
67.6%
17.7 min
216
229
Feb
73.6%
13.5 min
239
251
Mar
71.3%
21.6 min
244
246
Apr
81.2%
11.2 min
250
250
May
Fewer than 200 measured departures
—
198
198
Jun
Fewer than 200 measured departures
—
134
134
Jul
Fewer than 200 measured departures
—
121
124
Aug
Fewer than 200 measured departures
—
62
62
Sep
Fewer than 200 measured departures
—
44
44
Oct
Fewer than 200 measured departures
—
116
116
Nov
86.6%
2.9 min
224
225
Dec
69.2%
18.0 min
247
249
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 time77.4%1,648
Delayed >15 min21.0%447
Cancelled1.6%33
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.