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 delay06:00–07:000.9min · 401 recorded · 386 measured
Gap to highest-delay hour21.9min06:00 ↔ 19:00
Recorded flights4,926HPN–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
22.811.40.0
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
1,2666330
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
93.5%
0.9 min
386
401
07:00
91.6%
7.3 min
534
542
08:00
88.2%
4.7 min
634
640
09:00
No observations
—
—
—
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
79.8%
10.9 min
1,244
1,266
13:00
Fewer than 200 measured departures
—
110
117
14:00
Fewer than 200 measured departures
—
140
145
15:00
No observations
—
—
—
16:00
74.3%
22.0 min
595
621
17:00
73.2%
22.8 min
216
238
18:00
76.4%
14.2 min
594
625
19:00
72.0%
22.8 min
243
256
20:00
Fewer than 200 measured departures
—
70
75
21:00
No observations
—
—
—
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
16.98.40.0
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
7243620
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
82.4%
10.0 min
677
724
Tuesday
85.0%
9.9 min
666
678
Wednesday
79.2%
12.9 min
681
692
Thursday
79.8%
14.4 min
693
708
Friday
77.4%
16.9 min
702
716
Saturday
86.5%
5.5 min
659
690
Sunday
80.5%
13.6 min
688
718
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
20.210.10.0
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
5502750
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
81.5%
11.4 min
363
376
Feb
81.1%
10.0 min
355
370
Mar
80.3%
15.6 min
406
434
Apr
83.4%
10.9 min
409
420
May
83.7%
9.6 min
466
478
Jun
81.8%
12.5 min
506
524
Jul
77.9%
17.7 min
525
550
Aug
84.7%
5.6 min
241
248
Sep
89.7%
1.0 min
234
234
Oct
81.5%
10.3 min
400
400
Nov
84.2%
9.2 min
430
450
Dec
73.6%
20.2 min
431
442
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 time78.8%3,883
Delayed >15 min17.9%883
Cancelled3.2%160
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.