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 delay10:00–11:009.3min · 428 recorded · 421 measured
Gap to highest-delay hour34.0min10:00 ↔ 17:00
Recorded flights3,482CRW–ORD
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
43.221.60.0
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
7483740
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
Fewer than 200 measured departures
—
151
157
07:00
84.2%
16.1 min
563
570
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
83.1%
9.3 min
421
428
11:00
Fewer than 200 measured departures
—
66
67
12:00
Fewer than 200 measured departures
—
1
1
13:00
75.2%
18.5 min
290
296
14:00
71.1%
21.2 min
698
712
15:00
Fewer than 200 measured departures
—
1
1
16:00
Fewer than 200 measured departures
—
1
1
17:00
58.8%
43.2 min
716
748
18:00
66.2%
32.5 min
450
462
19:00
Fewer than 200 measured departures
—
24
28
20:00
Fewer than 200 measured departures
—
1
1
21:00
Fewer than 200 measured departures
—
7
10
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
28.414.20.0
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
5052530
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
72.1%
28.4 min
480
505
Tuesday
72.5%
26.9 min
484
490
Wednesday
76.9%
20.3 min
490
499
Thursday
70.9%
23.9 min
491
499
Friday
70.2%
25.2 min
490
498
Saturday
71.8%
22.5 min
472
489
Sunday
71.2%
24.3 min
483
502
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
42.821.40.0
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
3951980
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
68.4%
26.8 min
234
254
Feb
69.4%
42.8 min
219
222
Mar
67.5%
30.4 min
283
300
Apr
76.5%
16.4 min
349
361
May
75.9%
19.3 min
394
395
Jun
75.6%
20.6 min
349
354
Jul
62.8%
37.8 min
360
370
Aug
Fewer than 200 measured departures
—
180
186
Sep
Fewer than 200 measured departures
—
180
180
Oct
80.6%
12.7 min
293
293
Nov
74.5%
16.9 min
286
300
Dec
62.7%
35.0 min
263
267
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 time70.3%2,449
Delayed >15 min27.0%941
Cancelled2.6%92
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.