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 delay12:00–13:003.7min · 382 recorded · 374 measured
Gap to highest-delay hour14.2min12:00 ↔ 15:00
Recorded flights7,332LAX–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
17.88.90.0
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
1,4157080
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
84.4%
8.2 min
360
363
08:00
84.9%
6.1 min
1,408
1,415
09:00
88.8%
5.1 min
814
814
10:00
80.7%
8.6 min
244
245
11:00
Fewer than 200 measured departures
—
5
5
12:00
86.9%
3.7 min
374
382
13:00
86.1%
12.4 min
1,313
1,318
14:00
86.5%
7.3 min
864
867
15:00
80.9%
17.8 min
225
227
16:00
83.4%
7.9 min
440
443
17:00
81.1%
7.2 min
254
254
18:00
Fewer than 200 measured departures
—
155
156
19:00
Fewer than 200 measured departures
—
19
19
20:00
Fewer than 200 measured departures
—
95
96
21:00
93.1%
10.6 min
349
351
22:00
87.2%
17.4 min
296
301
23:00
Fewer than 200 measured departures
—
75
76
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
13.56.80.0
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
1,1315660
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
84.9%
11.2 min
1,038
1,040
Tuesday
87.0%
8.1 min
991
999
Wednesday
86.3%
6.2 min
1,008
1,012
Thursday
87.3%
5.8 min
1,046
1,050
Friday
85.8%
5.2 min
1,043
1,050
Saturday
84.6%
13.5 min
1,120
1,131
Sunday
83.7%
12.0 min
1,044
1,050
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
14.87.40.0
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
1,0545270
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
83.6%
8.4 min
547
552
Feb
85.2%
9.8 min
478
478
Mar
83.9%
14.8 min
628
641
Apr
87.5%
5.9 min
693
696
May
87.4%
6.9 min
770
770
Jun
85.6%
12.1 min
922
926
Jul
79.6%
13.7 min
1,044
1,054
Aug
88.3%
4.2 min
402
402
Sep
86.0%
4.3 min
243
244
Oct
88.1%
9.7 min
411
414
Nov
91.3%
4.3 min
508
508
Dec
87.3%
4.2 min
644
647
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 time85.1%6,242
Delayed >15 min14.3%1,048
Cancelled0.6%42
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.