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 delay10:00–11:0010.4min · 234 recorded · 232 measured
Gap to highest-delay hour36.4min10:00 ↔ 20:00
Recorded flights5,940DFW–TYS
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
46.823.40.0
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
8404200
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
89.4%
12.1 min
479
494
06:00
Fewer than 200 measured departures
—
155
164
07:00
83.7%
10.8 min
404
412
08:00
80.8%
11.5 min
469
487
09:00
Fewer than 200 measured departures
—
127
129
10:00
80.6%
10.4 min
232
234
11:00
Fewer than 200 measured departures
—
150
153
12:00
77.9%
14.5 min
815
840
13:00
Fewer than 200 measured departures
—
181
187
14:00
67.8%
24.1 min
746
770
15:00
Fewer than 200 measured departures
—
70
71
16:00
72.6%
24.4 min
402
418
17:00
Fewer than 200 measured departures
—
114
118
18:00
62.6%
31.1 min
720
751
19:00
Fewer than 200 measured departures
—
66
71
20:00
46.2%
46.8 min
452
472
21:00
Fewer than 200 measured departures
—
163
169
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
28.314.20.0
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
8634320
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
69.4%
24.2 min
837
858
Tuesday
77.7%
16.2 min
801
828
Wednesday
73.4%
19.3 min
811
826
Thursday
73.0%
20.6 min
822
851
Friday
72.1%
21.2 min
822
857
Saturday
68.9%
28.3 min
825
863
Sunday
69.2%
26.5 min
827
857
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
33.816.90.0
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
6653330
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
75.7%
22.9 min
416
474
Feb
77.1%
15.3 min
420
428
Mar
74.9%
22.2 min
534
544
Apr
73.4%
14.7 min
526
538
May
71.1%
26.5 min
595
614
Jun
61.0%
33.8 min
623
647
Jul
67.4%
30.9 min
653
665
Aug
73.3%
22.0 min
292
312
Sep
75.4%
24.4 min
293
300
Oct
74.7%
14.7 min
458
466
Nov
74.6%
17.2 min
457
465
Dec
72.2%
16.3 min
478
487
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 time69.5%4,131
Delayed >15 min27.2%1,614
Cancelled3.3%195
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.