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 delay10:00–11:00-1.1min · 431 recorded · 430 measured
Gap to highest-delay hour18.4min10:00 ↔ 13:00
Recorded flights2,553OAK–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
17.38.1-1.1
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
5802900
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
—
2
3
07:00
94.4%
3.1 min
571
580
08:00
Fewer than 200 measured departures
—
57
57
09:00
94.7%
-1.0 min
323
323
10:00
96.1%
-1.1 min
430
431
11:00
Fewer than 200 measured departures
—
114
114
12:00
78.1%
13.6 min
224
225
13:00
73.3%
17.3 min
322
323
14:00
72.6%
14.9 min
361
361
15:00
Fewer than 200 measured departures
—
115
116
16:00
Fewer than 200 measured departures
—
20
20
17:00
No observations
—
—
—
18:00
No observations
—
—
—
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
10.15.00.0
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
3841920
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
87.1%
6.9 min
365
366
Tuesday
87.3%
8.1 min
347
349
Wednesday
87.1%
4.4 min
348
350
Thursday
83.2%
10.1 min
357
359
Friday
86.6%
6.3 min
366
368
Saturday
85.3%
7.0 min
381
384
Sunday
86.1%
8.9 min
375
377
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
23.211.4-0.4
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
2521260
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
89.4%
4.6 min
236
236
Feb
88.8%
1.1 min
206
208
Mar
86.1%
6.3 min
244
244
Apr
84.6%
8.9 min
240
240
May
87.9%
4.3 min
248
248
Jun
83.7%
10.8 min
227
227
Jul
78.9%
23.2 min
218
219
Aug
Fewer than 200 measured departures
—
107
110
Sep
Fewer than 200 measured departures
—
120
120
Oct
82.2%
11.8 min
202
204
Nov
93.8%
-0.4 min
240
245
Dec
82.1%
8.6 min
251
252
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 time85.6%2,186
Delayed >15 min13.8%353
Cancelled0.5%14
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.