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 delay05:00–06:00-3.4min · 299 recorded · 297 measured
Gap to highest-delay hour28.4min05:00 ↔ 19:00
Recorded flights3,254CMH–TPA
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
25.010.8-3.4
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
4622310
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
97.6%
-3.4 min
297
299
06:00
95.6%
-2.2 min
459
462
07:00
94.8%
-0.8 min
325
330
08:00
Fewer than 200 measured departures
—
154
155
09:00
Fewer than 200 measured departures
—
61
62
10:00
Fewer than 200 measured departures
—
48
48
11:00
Fewer than 200 measured departures
—
110
111
12:00
Fewer than 200 measured departures
—
137
138
13:00
Fewer than 200 measured departures
—
74
74
14:00
Fewer than 200 measured departures
—
146
146
15:00
71.8%
15.2 min
209
211
16:00
Fewer than 200 measured departures
—
125
126
17:00
Fewer than 200 measured departures
—
103
109
18:00
76.1%
13.1 min
209
217
19:00
56.8%
25.0 min
234
239
20:00
63.8%
22.2 min
351
355
21:00
Fewer than 200 measured departures
—
122
125
22:00
Fewer than 200 measured departures
—
46
47
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
16.58.30.0
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
77.9%
12.6 min
457
467
Tuesday
87.0%
4.9 min
384
386
Wednesday
84.8%
5.6 min
387
387
Thursday
76.9%
10.6 min
438
442
Friday
81.0%
7.8 min
473
478
Saturday
81.7%
8.8 min
552
564
Sunday
70.3%
16.5 min
519
530
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
16.38.10.0
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
4102050
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
84.9%
4.9 min
259
269
Feb
83.0%
7.6 min
265
265
Mar
70.3%
16.1 min
400
410
Apr
84.7%
5.7 min
366
366
May
79.5%
9.0 min
346
346
Jun
73.9%
15.2 min
280
280
Jul
70.7%
16.3 min
276
278
Aug
Fewer than 200 measured departures
—
126
126
Sep
Fewer than 200 measured departures
—
124
124
Oct
Fewer than 200 measured departures
—
190
202
Nov
84.0%
6.3 min
275
280
Dec
77.9%
13.7 min
303
308
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 time78.5%2,554
Delayed >15 min20.2%656
Cancelled1.4%44
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.