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 delay10:00–11:005.0min · 574 recorded · 558 measured
Gap to highest-delay hour25.1min10:00 ↔ 05:00
Recorded flights3,832DFW–LCH
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
30.115.00.0
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
6163080
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
81.8%
30.1 min
329
346
06:00
89.9%
7.8 min
306
311
07:00
No observations
—
—
—
08:00
Fewer than 200 measured departures
—
71
72
09:00
Fewer than 200 measured departures
—
44
44
10:00
85.7%
5.0 min
558
574
11:00
Fewer than 200 measured departures
—
43
44
12:00
81.2%
18.2 min
484
500
13:00
Fewer than 200 measured departures
—
35
37
14:00
Fewer than 200 measured departures
—
36
37
15:00
No observations
—
—
—
16:00
77.7%
11.3 min
587
616
17:00
No observations
—
—
—
18:00
72.3%
17.6 min
566
606
19:00
No observations
—
—
—
20:00
Fewer than 200 measured departures
—
28
29
21:00
81.0%
22.2 min
584
616
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
18.49.20.0
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
5542770
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
79.4%
12.1 min
533
554
Tuesday
83.4%
14.7 min
507
542
Wednesday
81.1%
18.4 min
524
544
Thursday
79.5%
14.6 min
517
542
Friday
83.4%
11.0 min
535
550
Saturday
79.7%
17.7 min
528
551
Sunday
81.6%
15.7 min
527
549
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
29.814.90.0
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
3721860
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
83.9%
9.4 min
280
320
Feb
79.4%
29.8 min
301
308
Mar
82.3%
13.2 min
351
372
Apr
80.9%
10.3 min
345
360
May
80.9%
20.1 min
350
372
Jun
76.5%
17.0 min
345
356
Jul
82.6%
8.1 min
357
364
Aug
Fewer than 200 measured departures
—
184
186
Sep
Fewer than 200 measured departures
—
177
180
Oct
78.0%
17.8 min
300
302
Nov
85.6%
10.7 min
327
348
Dec
81.6%
16.6 min
354
364
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 time77.7%2,979
Delayed >15 min18.1%692
Cancelled4.2%161
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.