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 delay15:00–16:008.7min · 270 recorded · 267 measured
Gap to highest-delay hour28.6min15:00 ↔ 16:00
Recorded flights4,127CID–DFW
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
37.218.60.0
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
5742870
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
88.8%
21.3 min
474
485
06:00
84.8%
11.7 min
217
222
07:00
Fewer than 200 measured departures
—
161
161
08:00
Fewer than 200 measured departures
—
5
5
09:00
Fewer than 200 measured departures
—
121
122
10:00
76.5%
18.3 min
396
407
11:00
Fewer than 200 measured departures
—
173
181
12:00
Fewer than 200 measured departures
—
75
76
13:00
69.3%
33.3 min
553
574
14:00
Fewer than 200 measured departures
—
19
20
15:00
81.3%
8.7 min
267
270
16:00
61.0%
37.2 min
251
263
17:00
Fewer than 200 measured departures
—
199
207
18:00
Fewer than 200 measured departures
—
99
102
19:00
66.7%
29.3 min
447
468
20:00
Fewer than 200 measured departures
—
136
138
21:00
61.7%
32.5 min
413
426
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
36.518.30.0
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
6233120
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
73.5%
24.6 min
592
608
Tuesday
78.1%
19.5 min
515
533
Wednesday
78.8%
12.3 min
547
563
Thursday
76.7%
21.5 min
606
618
Friday
72.0%
22.9 min
599
615
Saturday
73.1%
24.3 min
547
567
Sunday
65.2%
36.5 min
600
623
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
57.728.80.0
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
4882440
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
80.3%
19.0 min
299
325
Feb
71.7%
16.8 min
325
327
Mar
64.6%
47.6 min
345
367
Apr
68.1%
24.0 min
335
345
May
71.2%
23.0 min
378
386
Jun
75.7%
17.0 min
456
464
Jul
76.8%
15.2 min
482
488
Aug
77.1%
21.8 min
210
212
Sep
88.0%
6.4 min
217
220
Oct
82.5%
8.4 min
338
340
Nov
74.6%
22.7 min
307
325
Dec
59.2%
57.7 min
314
328
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 time71.6%2,955
Delayed >15 min25.5%1,051
Cancelled2.9%121
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.