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 delay05:00–06:005.3min · 377 recorded · 363 measured
Gap to highest-delay hour34.7min05:00 ↔ 19:00
Recorded flights8,131DFW–TUS
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
40.020.00.0
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
9274640
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
Fewer than 200 measured departures
—
1
1
01:00
No observations
—
—
—
02:00
No observations
—
—
—
03:00
No observations
—
—
—
04:00
No observations
—
—
—
05:00
91.5%
5.3 min
363
377
06:00
91.5%
5.7 min
423
436
07:00
89.7%
5.7 min
515
528
08:00
82.4%
12.0 min
902
927
09:00
78.5%
20.4 min
609
623
10:00
77.6%
14.2 min
695
716
11:00
74.5%
18.6 min
216
226
12:00
71.7%
22.8 min
781
798
13:00
65.8%
34.6 min
330
339
14:00
69.1%
18.9 min
782
817
15:00
67.1%
34.7 min
350
367
16:00
67.6%
22.1 min
296
312
17:00
72.8%
17.0 min
276
288
18:00
55.8%
32.7 min
319
327
19:00
57.2%
40.0 min
222
230
20:00
Fewer than 200 measured departures
—
65
71
21:00
62.7%
22.4 min
316
329
22:00
52.7%
35.6 min
313
327
23:00
Fewer than 200 measured departures
—
85
92
Day of week
On-time departuresPartial coverage: only airlines that report on-time data to the US DOT
100.050.00.0
MonTueWedThuFriSatSun
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
21.510.80.0
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
1,2126060
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
73.3%
19.3 min
1,126
1,160
Tuesday
77.2%
20.7 min
1,116
1,153
Wednesday
73.9%
20.2 min
1,113
1,143
Thursday
72.7%
16.7 min
1,141
1,180
Friday
75.1%
20.5 min
1,096
1,139
Saturday
70.7%
21.5 min
1,101
1,144
Sunday
74.2%
20.6 min
1,166
1,212
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
33.916.90.0
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
8624310
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
77.6%
14.5 min
747
818
Feb
83.0%
8.5 min
733
739
Mar
76.6%
15.0 min
795
816
Apr
74.3%
22.3 min
685
708
May
69.2%
28.3 min
710
734
Jun
61.8%
31.1 min
641
685
Jul
65.1%
33.9 min
610
622
Aug
68.8%
33.7 min
295
310
Sep
73.0%
23.3 min
341
356
Oct
77.5%
12.8 min
621
624
Nov
79.9%
12.7 min
836
857
Dec
72.7%
17.9 min
845
862
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 time71.4%5,805
Delayed >15 min25.3%2,054
Cancelled3.3%272
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.