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 delay06:00–07:00-0.1min · 378 recorded · 371 measured
Gap to highest-delay hour33.0min06:00 ↔ 20:00
Recorded flights4,088MCO–SAT
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
32.816.4-0.1
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
4332170
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
95.3%
0.5 min
338
338
06:00
94.1%
-0.1 min
371
378
07:00
93.5%
0.0 min
432
433
08:00
92.2%
0.9 min
242
243
09:00
Fewer than 200 measured departures
—
178
184
10:00
Fewer than 200 measured departures
—
176
182
11:00
Fewer than 200 measured departures
—
134
134
12:00
Fewer than 200 measured departures
—
122
126
13:00
Fewer than 200 measured departures
—
101
105
14:00
Fewer than 200 measured departures
—
195
195
15:00
Fewer than 200 measured departures
—
140
140
16:00
66.3%
23.2 min
332
333
17:00
71.5%
20.4 min
424
426
18:00
Fewer than 200 measured departures
—
125
125
19:00
65.1%
20.4 min
278
278
20:00
52.0%
32.8 min
246
249
21:00
Fewer than 200 measured departures
—
154
161
22:00
Fewer than 200 measured departures
—
30
31
23:00
Fewer than 200 measured departures
—
27
27
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
16.88.40.0
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
6583290
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
76.5%
14.2 min
651
658
Tuesday
82.5%
7.9 min
475
479
Wednesday
83.9%
10.4 min
447
449
Thursday
75.7%
15.6 min
576
583
Friday
77.9%
13.7 min
646
653
Saturday
76.1%
12.4 min
641
650
Sunday
76.4%
16.8 min
609
616
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
19.19.60.0
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
4502250
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
82.1%
6.1 min
346
356
Feb
77.9%
11.6 min
303
316
Mar
77.1%
16.7 min
411
419
Apr
82.7%
11.3 min
369
371
May
72.2%
19.1 min
309
310
Jun
71.9%
17.0 min
405
408
Jul
75.3%
12.9 min
438
440
Aug
Fewer than 200 measured departures
—
163
163
Sep
Fewer than 200 measured departures
—
134
134
Oct
76.0%
16.9 min
300
301
Nov
84.3%
6.3 min
419
420
Dec
77.2%
16.1 min
448
450
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 time77.2%3,157
Delayed >15 min21.7%888
Cancelled1.1%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.