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 delay08:00–09:000.4min · 607 recorded · 581 measured
Gap to highest-delay hour10.9min08:00 ↔ 18:00
Recorded flights4,224DFW–FSM
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
11.35.60.0
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
6123060
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
—
96
103
06:00
94.3%
2.0 min
547
553
07:00
No observations
—
—
—
08:00
90.7%
0.4 min
581
607
09:00
Fewer than 200 measured departures
—
81
82
10:00
86.8%
9.0 min
552
575
11:00
Fewer than 200 measured departures
—
50
51
12:00
No observations
—
—
—
13:00
Fewer than 200 measured departures
—
34
34
14:00
Fewer than 200 measured departures
—
35
36
15:00
Fewer than 200 measured departures
—
111
111
16:00
79.4%
8.8 min
573
590
17:00
Fewer than 200 measured departures
—
128
132
18:00
78.8%
11.3 min
585
612
19:00
Fewer than 200 measured departures
—
1
1
20:00
Fewer than 200 measured departures
—
103
109
21:00
90.1%
2.9 min
213
224
22:00
81.9%
9.5 min
392
404
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
9.64.80.0
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
6203100
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
86.1%
6.4 min
591
615
Tuesday
86.4%
6.1 min
551
574
Wednesday
85.6%
7.0 min
583
594
Thursday
84.2%
9.6 min
596
614
Friday
84.4%
6.4 min
589
614
Saturday
82.9%
7.1 min
572
593
Sunday
83.0%
9.5 min
600
620
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
13.86.9-0.1
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
85.5%
6.4 min
337
371
Feb
91.6%
-0.1 min
323
333
Mar
87.7%
7.6 min
366
372
Apr
84.7%
6.5 min
346
360
May
82.8%
12.5 min
372
390
Jun
73.9%
13.8 min
426
442
Jul
77.8%
12.5 min
442
450
Aug
Fewer than 200 measured departures
—
190
192
Sep
89.7%
4.3 min
234
236
Oct
89.9%
1.5 min
336
340
Nov
87.8%
3.3 min
344
370
Dec
84.7%
10.0 min
366
368
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 time81.8%3,455
Delayed >15 min14.8%627
Cancelled3.4%142
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.