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 delay05:00–06:00-0.5min · 262 recorded · 260 measured
Gap to highest-delay hour26.0min05:00 ↔ 19:00
Recorded flights2,355MCI–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
25.612.6-0.5
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
4282140
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
96.2%
-0.5 min
260
262
06:00
95.9%
0.1 min
419
428
07:00
Fewer than 200 measured departures
—
180
180
08:00
Fewer than 200 measured departures
—
133
133
09:00
Fewer than 200 measured departures
—
40
40
10:00
Fewer than 200 measured departures
—
42
43
11:00
Fewer than 200 measured departures
—
6
8
12:00
Fewer than 200 measured departures
—
61
62
13:00
Fewer than 200 measured departures
—
117
119
14:00
Fewer than 200 measured departures
—
57
58
15:00
Fewer than 200 measured departures
—
19
19
16:00
Fewer than 200 measured departures
—
77
77
17:00
Fewer than 200 measured departures
—
137
139
18:00
Fewer than 200 measured departures
—
158
162
19:00
63.1%
25.6 min
233
237
20:00
55.0%
25.5 min
231
232
21:00
Fewer than 200 measured departures
—
128
129
22:00
Fewer than 200 measured departures
—
27
27
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
15.17.60.0
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
4562280
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.7%
14.4 min
321
325
Tuesday
79.1%
11.6 min
277
280
Wednesday
80.0%
11.4 min
270
272
Thursday
78.8%
12.1 min
320
322
Friday
81.2%
10.3 min
324
328
Saturday
82.4%
8.8 min
448
456
Sunday
72.1%
15.1 min
365
372
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
20.510.30.0
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
2841420
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
173
180
Feb
Fewer than 200 measured departures
—
191
191
Mar
80.6%
15.7 min
278
284
Apr
82.7%
7.3 min
260
260
May
75.0%
14.3 min
268
268
Jun
73.3%
12.9 min
240
240
Jul
73.3%
20.5 min
232
232
Aug
Fewer than 200 measured departures
—
78
78
Sep
Fewer than 200 measured departures
—
68
68
Oct
Fewer than 200 measured departures
—
180
192
Nov
Fewer than 200 measured departures
—
180
184
Dec
Fewer than 200 measured departures
—
177
178
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 time77.5%1,825
Delayed >15 min21.2%500
Cancelled1.3%30
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.