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 delay09:00–10:00-1.2min · 523 recorded · 521 measured
Gap to highest-delay hour9.3min09:00 ↔ 14:00
Recorded flights5,263LIH–OGG
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
8.13.4-1.2
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
1,4287140
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
No observations
—
—
—
08:00
Fewer than 200 measured departures
—
123
123
09:00
95.2%
-1.2 min
521
523
10:00
91.9%
3.3 min
505
506
11:00
90.4%
3.5 min
593
594
12:00
83.9%
7.8 min
516
516
13:00
82.3%
5.9 min
1,426
1,428
14:00
78.0%
8.1 min
710
712
15:00
83.3%
5.9 min
784
786
16:00
Fewer than 200 measured departures
—
3
3
17:00
Fewer than 200 measured departures
—
70
70
18:00
Fewer than 200 measured departures
—
2
2
19:00
No observations
—
—
—
20:00
No observations
—
—
—
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
8.94.50.0
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
7523760
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
86.0%
4.0 min
751
752
Tuesday
88.3%
2.7 min
751
752
Wednesday
87.5%
4.4 min
751
752
Thursday
85.1%
3.6 min
745
752
Friday
81.9%
8.9 min
752
752
Saturday
84.0%
6.4 min
752
752
Sunday
86.7%
3.9 min
751
751
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
8.44.20.0
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
4962480
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
87.9%
4.0 min
489
496
Feb
85.2%
4.3 min
447
448
Mar
83.7%
8.4 min
496
496
Apr
81.6%
6.0 min
479
479
May
86.1%
4.9 min
496
496
Jun
82.7%
5.7 min
480
480
Jul
81.3%
8.3 min
496
496
Aug
87.5%
5.4 min
248
248
Sep
92.1%
1.6 min
240
240
Oct
88.0%
2.8 min
407
408
Nov
90.0%
0.8 min
480
480
Dec
86.3%
4.1 min
495
496
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 time85.5%4,499
Delayed >15 min14.3%754
Cancelled0.2%10
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.