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 delay07:00–08:000.1min · 412 recorded · 409 measured
Gap to highest-delay hour36.6min07:00 ↔ 20:00
Recorded flights3,125MCO–SDF
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
36.618.30.0
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
4122060
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
—
119
119
06:00
Fewer than 200 measured departures
—
174
176
07:00
95.1%
0.1 min
409
412
08:00
91.6%
2.4 min
369
373
09:00
Fewer than 200 measured departures
—
194
195
10:00
Fewer than 200 measured departures
—
185
188
11:00
Fewer than 200 measured departures
—
86
86
12:00
Fewer than 200 measured departures
—
103
105
13:00
Fewer than 200 measured departures
—
113
115
14:00
Fewer than 200 measured departures
—
46
47
15:00
Fewer than 200 measured departures
—
96
97
16:00
Fewer than 200 measured departures
—
91
91
17:00
67.6%
19.3 min
376
383
18:00
Fewer than 200 measured departures
—
153
155
19:00
65.3%
21.9 min
262
268
20:00
54.3%
36.6 min
210
214
21:00
Fewer than 200 measured departures
—
96
101
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
5642820
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
79.5%
14.9 min
429
436
Tuesday
82.7%
6.0 min
364
373
Wednesday
82.0%
8.2 min
384
388
Thursday
80.2%
9.3 min
435
436
Friday
78.5%
12.9 min
441
443
Saturday
77.6%
13.8 min
557
564
Sunday
73.7%
18.1 min
472
485
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
22.111.10.0
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
3471740
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
85.3%
6.4 min
265
278
Feb
84.5%
10.4 min
284
289
Mar
74.5%
16.8 min
337
347
Apr
79.8%
14.0 min
322
322
May
80.2%
11.2 min
288
289
Jun
69.2%
22.1 min
302
306
Jul
68.6%
17.0 min
296
296
Aug
Fewer than 200 measured departures
—
102
102
Sep
Fewer than 200 measured departures
—
124
124
Oct
79.5%
8.5 min
293
294
Nov
85.2%
6.2 min
230
238
Dec
76.2%
11.9 min
239
240
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 time77.8%2,432
Delayed >15 min20.8%650
Cancelled1.4%43
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.