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 → May 20, 2026
Lowest average delay09:00–10:0010.1min · 566 recorded · 564 measured
Gap to highest-delay hour7.4min09:00 ↔ 10:00
Recorded flights2,718ORD–PSP
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
17.48.70.0
00:0003:0006:0009:0012:0015:0018:0021:00
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
5952980
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
—
157
163
07:00
Fewer than 200 measured departures
—
167
169
08:00
Fewer than 200 measured departures
—
94
97
09:00
80.9%
10.1 min
564
566
10:00
72.1%
17.4 min
276
277
11:00
85.1%
14.0 min
590
595
12:00
Fewer than 200 measured departures
—
177
179
13:00
Fewer than 200 measured departures
—
184
184
14:00
Fewer than 200 measured departures
—
78
80
15:00
Fewer than 200 measured departures
—
71
75
16:00
Fewer than 200 measured departures
—
6
6
17:00
No observations
—
—
—
18:00
No observations
—
—
—
19:00
Fewer than 200 measured departures
—
114
116
20:00
Fewer than 200 measured departures
—
36
37
21:00
Fewer than 200 measured departures
—
110
116
22:00
Fewer than 200 measured departures
—
1
1
23:00
Fewer than 200 measured departures
—
54
57
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
26.113.00.0
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
4042020
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
78.3%
11.1 min
387
395
Tuesday
81.9%
13.0 min
371
377
Wednesday
80.7%
15.2 min
379
381
Thursday
80.6%
18.6 min
377
378
Friday
79.5%
26.0 min
390
392
Saturday
75.7%
21.3 min
378
391
Sunday
74.6%
26.1 min
397
404
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
25.612.80.0
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
4542270
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
79.0%
20.6 min
281
292
Feb
81.7%
23.1 min
344
344
Mar
70.1%
25.6 min
435
442
Apr
79.3%
19.5 min
449
454
May
82.8%
9.2 min
227
229
Jun
Fewer than 200 measured departures
—
8
8
Jul
No observations
—
—
—
Aug
No observations
—
—
—
Sep
Fewer than 200 measured departures
—
12
12
Oct
85.1%
5.9 min
242
242
Nov
80.4%
12.9 min
306
315
Dec
76.5%
24.9 min
375
380
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 time77.6%2,109
Delayed >15 min21.0%570
Cancelled1.4%39
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.