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 delay07:00–08:002.7min · 223 recorded · 219 measured
Gap to highest-delay hour18.1min07:00 ↔ 19:00
Recorded flights2,099ALB–FLL
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
20.810.40.0
00:0003:0006:0009:0012:0015:0018:0021:00
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
3771890
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
89.8%
7.5 min
371
377
07:00
88.6%
2.7 min
219
223
08:00
Fewer than 200 measured departures
—
63
64
09:00
Fewer than 200 measured departures
—
19
19
10:00
Fewer than 200 measured departures
—
125
125
11:00
Fewer than 200 measured departures
—
61
61
12:00
Fewer than 200 measured departures
—
69
70
13:00
Fewer than 200 measured departures
—
158
159
14:00
Fewer than 200 measured departures
—
115
117
15:00
Fewer than 200 measured departures
—
74
76
16:00
Fewer than 200 measured departures
—
70
70
17:00
Fewer than 200 measured departures
—
108
110
18:00
Fewer than 200 measured departures
—
191
192
19:00
67.7%
20.8 min
238
242
20:00
Fewer than 200 measured departures
—
156
160
21:00
Fewer than 200 measured departures
—
34
34
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
25.812.90.0
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
3521760
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
70.1%
25.8 min
334
342
Tuesday
78.0%
10.5 min
254
256
Wednesday
81.3%
10.7 min
225
226
Thursday
73.2%
15.2 min
291
291
Friday
69.8%
15.8 min
351
352
Saturday
71.0%
16.5 min
310
314
Sunday
63.4%
25.1 min
306
318
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
24.412.20.0
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
2821410
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
68.1%
18.7 min
210
217
Feb
68.4%
17.8 min
256
266
Mar
67.6%
24.4 min
281
282
Apr
80.3%
6.6 min
274
275
May
Fewer than 200 measured departures
—
142
142
Jun
Fewer than 200 measured departures
—
160
160
Jul
Fewer than 200 measured departures
—
182
189
Aug
Fewer than 200 measured departures
—
88
88
Sep
Fewer than 200 measured departures
—
46
46
Oct
Fewer than 200 measured departures
—
91
91
Nov
Fewer than 200 measured departures
—
153
155
Dec
Fewer than 200 measured departures
—
188
188
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 time70.8%1,487
Delayed >15 min27.8%584
Cancelled1.3%28
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.