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 delay08:00–09:007.6min · 621 recorded · 610 measured
Gap to highest-delay hour32.1min08:00 ↔ 19:00
Recorded flights3,712DFW–SBN
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
39.719.80.0
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
9464730
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
No observations
—
—
—
06:00
No observations
—
—
—
07:00
79.0%
21.9 min
575
586
08:00
84.6%
7.6 min
610
621
09:00
Fewer than 200 measured departures
—
1
1
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
75.6%
17.7 min
922
946
13:00
Fewer than 200 measured departures
—
183
186
14:00
Fewer than 200 measured departures
—
72
73
15:00
No observations
—
—
—
16:00
71.6%
23.4 min
384
392
17:00
Fewer than 200 measured departures
—
179
185
18:00
70.3%
27.8 min
451
463
19:00
63.4%
39.7 min
254
258
20:00
No observations
—
—
—
21:00
Fewer than 200 measured departures
—
1
1
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
27.313.60.0
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
5352680
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%
24.5 min
532
534
Tuesday
78.5%
18.1 min
511
526
Wednesday
76.5%
20.3 min
520
528
Thursday
76.0%
18.7 min
509
526
Friday
77.2%
16.9 min
513
531
Saturday
71.8%
20.6 min
517
532
Sunday
70.9%
27.3 min
530
535
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
25.212.60.0
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
76.9%
22.5 min
307
320
Feb
66.7%
23.5 min
279
280
Mar
71.4%
25.2 min
297
310
Apr
75.9%
20.0 min
340
348
May
79.6%
22.4 min
363
372
Jun
69.2%
23.2 min
347
360
Jul
77.6%
18.9 min
361
368
Aug
Fewer than 200 measured departures
—
183
186
Sep
Fewer than 200 measured departures
—
178
180
Oct
74.5%
16.9 min
306
306
Nov
72.1%
23.3 min
344
350
Dec
77.1%
21.9 min
327
332
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 time73.2%2,719
Delayed >15 min24.6%913
Cancelled2.2%80
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.