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 delay14:00–15:0011.3min · 539 recorded · 519 measured
Gap to highest-delay hour10.5min14:00 ↔ 21:00
Recorded flights2,626DFW–SWO
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
21.810.90.0
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
6463230
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
—
56
61
06:00
90.4%
13.3 min
573
596
07:00
Fewer than 200 measured departures
—
1
1
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
79.8%
11.8 min
520
541
13:00
Fewer than 200 measured departures
—
115
117
14:00
77.3%
11.3 min
519
539
15:00
Fewer than 200 measured departures
—
112
116
16:00
No observations
—
—
—
17:00
Fewer than 200 measured departures
—
4
4
18:00
No observations
—
—
—
19:00
Fewer than 200 measured departures
—
5
5
20:00
No observations
—
—
—
21:00
78.3%
21.8 min
607
646
22:00
No observations
—
—
—
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
21.110.60.0
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
3761880
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
81.4%
14.9 min
360
376
Tuesday
89.4%
4.4 min
350
374
Wednesday
80.3%
13.7 min
360
376
Thursday
83.5%
13.2 min
357
372
Friday
81.7%
14.9 min
366
376
Saturday
77.6%
21.1 min
362
376
Sunday
78.2%
17.3 min
357
376
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
28.014.00.0
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
2481240
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
86.0%
5.1 min
222
248
Feb
87.3%
5.6 min
212
224
Mar
78.0%
21.6 min
232
248
Apr
74.8%
22.1 min
226
240
May
85.2%
19.2 min
237
248
Jun
83.6%
11.0 min
231
240
Jul
82.6%
10.0 min
242
248
Aug
Fewer than 200 measured departures
—
124
124
Sep
Fewer than 200 measured departures
—
115
120
Oct
85.3%
7.7 min
204
204
Nov
76.0%
18.2 min
229
236
Dec
73.5%
28.0 min
238
246
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 time78.1%2,052
Delayed >15 min17.5%460
Cancelled4.3%114
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.