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 delay14:00–15:0014.8min · 278 recorded · 274 measured
Gap to highest-delay hour3.8min14:00 ↔ 15:00
Recorded flights1,503DAL–RDU
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
18.69.30.0
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
2781390
00:0003:0006:0009:0012:0015:0018:0021:00
Hover, tap or focus a point to see its value, sample and source.
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
—
34
35
07:00
Fewer than 200 measured departures
—
64
67
08:00
Fewer than 200 measured departures
—
38
38
09:00
Fewer than 200 measured departures
—
50
51
10:00
Fewer than 200 measured departures
—
84
85
11:00
Fewer than 200 measured departures
—
152
155
12:00
Fewer than 200 measured departures
—
136
136
13:00
Fewer than 200 measured departures
—
189
193
14:00
69.3%
14.8 min
274
278
15:00
59.5%
18.6 min
227
228
16:00
Fewer than 200 measured departures
—
46
47
17:00
Fewer than 200 measured departures
—
95
96
18:00
Fewer than 200 measured departures
—
59
59
19:00
Fewer than 200 measured departures
—
18
18
20:00
Fewer than 200 measured departures
—
10
10
21:00
Fewer than 200 measured departures
—
7
7
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
15.87.90.0
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
2941470
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
Fewer than 200 measured departures
—
198
200
Tuesday
Fewer than 200 measured departures
—
191
195
Wednesday
Fewer than 200 measured departures
—
189
190
Thursday
Fewer than 200 measured departures
—
192
194
Friday
69.8%
14.9 min
202
204
Saturday
72.9%
15.8 min
221
226
Sunday
70.0%
15.3 min
290
294
Month of year
Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
160800
JanFebMarAprMayJunJulAugSepOctNovDec
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No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
126
134
Feb
Fewer than 200 measured departures
—
110
112
Mar
Fewer than 200 measured departures
—
131
132
Apr
Fewer than 200 measured departures
—
133
134
May
Fewer than 200 measured departures
—
133
138
Jun
Fewer than 200 measured departures
—
138
138
Jul
Fewer than 200 measured departures
—
140
140
Aug
Fewer than 200 measured departures
—
72
72
Sep
Fewer than 200 measured departures
—
69
69
Oct
Fewer than 200 measured departures
—
115
116
Nov
Fewer than 200 measured departures
—
156
158
Dec
Fewer than 200 measured departures
—
160
160
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 time69.9%1,051
Delayed >15 min28.7%432
Cancelled1.3%20
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.