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 delay16:00–17:007.9min · 323 recorded · 320 measured
Gap to highest-delay hour11.8min16:00 ↔ 21:00
Recorded flights2,030MIA–ORF
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
19.79.90.0
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
6133070
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
—
45
45
06:00
89.9%
12.3 min
601
613
07:00
No observations
—
—
—
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
Fewer than 200 measured departures
—
4
4
11:00
No observations
—
—
—
12:00
Fewer than 200 measured departures
—
13
13
13:00
Fewer than 200 measured departures
—
4
4
14:00
No observations
—
—
—
15:00
Fewer than 200 measured departures
—
29
30
16:00
82.2%
7.9 min
320
323
17:00
No observations
—
—
—
18:00
Fewer than 200 measured departures
—
42
43
19:00
76.2%
15.0 min
294
297
20:00
Fewer than 200 measured departures
—
55
57
21:00
68.6%
19.7 min
573
582
22:00
Fewer than 200 measured departures
—
19
19
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
20.110.00.0
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
3121560
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
77.9%
12.5 min
281
288
Tuesday
85.7%
10.9 min
279
286
Wednesday
84.3%
7.6 min
280
284
Thursday
78.7%
18.9 min
282
284
Friday
75.9%
17.4 min
286
288
Saturday
79.2%
14.8 min
308
312
Sunday
72.4%
20.1 min
283
288
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
26.013.00.0
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
2381190
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
—
184
198
Feb
Fewer than 200 measured departures
—
166
168
Mar
74.6%
13.6 min
232
238
Apr
Fewer than 200 measured departures
—
186
186
May
Fewer than 200 measured departures
—
185
186
Jun
Fewer than 200 measured departures
—
184
184
Jul
Fewer than 200 measured departures
—
192
194
Aug
Fewer than 200 measured departures
—
72
72
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
102
102
Nov
89.6%
11.8 min
220
226
Dec
79.6%
26.0 min
216
216
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 time77.9%1,582
Delayed >15 min20.5%417
Cancelled1.5%31
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.