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 delay09:00–10:009.7min · 295 recorded · 295 measured
Gap to highest-delay hour4.9min09:00 ↔ 14:00
Recorded flights1,625MCO–STT
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
14.67.30.0
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
3691850
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
—
6
6
06:00
Fewer than 200 measured departures
—
19
19
07:00
Fewer than 200 measured departures
—
9
9
08:00
Fewer than 200 measured departures
—
5
5
09:00
85.8%
9.7 min
295
295
10:00
78.3%
11.3 min
364
369
11:00
Fewer than 200 measured departures
—
67
67
12:00
Fewer than 200 measured departures
—
77
77
13:00
75.1%
11.6 min
209
213
14:00
76.4%
14.6 min
305
311
15:00
Fewer than 200 measured departures
—
163
166
16:00
Fewer than 200 measured departures
—
63
64
17:00
Fewer than 200 measured departures
—
24
24
18:00
No observations
—
—
—
19:00
No observations
—
—
—
20:00
No observations
—
—
—
21:00
No observations
—
—
—
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
18.19.00.0
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
2651330
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
78.1%
17.5 min
247
252
Tuesday
Fewer than 200 measured departures
—
193
196
Wednesday
Fewer than 200 measured departures
—
193
194
Thursday
81.5%
4.2 min
232
232
Friday
80.7%
10.5 min
254
254
Saturday
71.8%
18.1 min
259
265
Sunday
73.7%
12.4 min
228
232
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
15.37.70.0
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
2101050
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
112
116
Feb
Fewer than 200 measured departures
—
158
158
Mar
67.5%
15.3 min
206
210
Apr
Fewer than 200 measured departures
—
183
186
May
Fewer than 200 measured departures
—
162
164
Jun
Fewer than 200 measured departures
—
172
172
Jul
Fewer than 200 measured departures
—
186
186
Aug
Fewer than 200 measured departures
—
92
95
Sep
Fewer than 200 measured departures
—
24
24
Oct
Fewer than 200 measured departures
—
63
64
Nov
Fewer than 200 measured departures
—
111
112
Dec
Fewer than 200 measured departures
—
137
138
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 time78.0%1,268
Delayed >15 min20.8%338
Cancelled1.2%19
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.