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 delay07:00–08:004.9min · 567 recorded · 563 measured
Gap to highest-delay hour20.2min07:00 ↔ 18:00
Recorded flights3,452MCO–SAN
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
25.112.60.0
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
5672840
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
Fewer than 200 measured departures
—
24
24
07:00
85.6%
4.9 min
563
567
08:00
80.7%
11.6 min
357
359
09:00
82.6%
9.5 min
311
312
10:00
74.7%
12.9 min
288
289
11:00
67.5%
18.1 min
243
244
12:00
Fewer than 200 measured departures
—
1
1
13:00
Fewer than 200 measured departures
—
7
7
14:00
Fewer than 200 measured departures
—
11
11
15:00
Fewer than 200 measured departures
—
52
52
16:00
73.2%
15.1 min
298
299
17:00
67.5%
15.6 min
289
290
18:00
54.0%
25.1 min
289
291
19:00
Fewer than 200 measured departures
—
51
51
20:00
No observations
—
—
—
21:00
73.9%
9.3 min
390
392
22:00
80.0%
5.8 min
260
263
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
14.57.20.0
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
5222610
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.0%
13.8 min
508
511
Tuesday
78.3%
8.1 min
443
443
Wednesday
77.9%
8.3 min
444
445
Thursday
72.0%
13.8 min
510
512
Friday
71.3%
14.5 min
519
522
Saturday
76.9%
13.2 min
511
514
Sunday
71.5%
13.9 min
499
505
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
17.08.50.0
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
4242120
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
77.9%
11.9 min
307
309
Feb
79.6%
7.0 min
280
280
Mar
70.6%
14.7 min
343
350
Apr
86.8%
3.3 min
372
372
May
81.6%
7.3 min
402
402
Jun
72.7%
14.1 min
410
412
Jul
71.0%
14.6 min
421
424
Aug
Fewer than 200 measured departures
—
142
145
Sep
Fewer than 200 measured departures
—
102
102
Oct
Fewer than 200 measured departures
—
162
162
Nov
69.3%
14.2 min
212
213
Dec
69.8%
17.0 min
281
281
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 time74.2%2,561
Delayed >15 min25.3%873
Cancelled0.5%18
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.