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 delay06:00–07:003.2min · 468 recorded · 468 measured
Gap to highest-delay hour20.1min06:00 ↔ 21:00
Recorded flights3,579FAT–LAX
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
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
23.311.60.0
00:0003:0006:0009:0012:0015:0018:0021:00
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
7653830
00:0003:0006:0009:0012:0015:0018:0021:00
Hover, tap or focus a point to see its value, sample and source.
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
Fewer than 200 measured departures
—
8
8
06:00
91.9%
3.2 min
468
468
07:00
Fewer than 200 measured departures
—
159
161
08:00
Fewer than 200 measured departures
—
56
59
09:00
Fewer than 200 measured departures
—
36
36
10:00
88.9%
3.5 min
764
765
11:00
No observations
—
—
—
12:00
Fewer than 200 measured departures
—
1
1
13:00
Fewer than 200 measured departures
—
72
72
14:00
89.0%
3.7 min
363
363
15:00
No observations
—
—
—
16:00
87.4%
6.8 min
428
430
17:00
Fewer than 200 measured departures
—
2
2
18:00
83.9%
6.5 min
570
570
19:00
Fewer than 200 measured departures
—
142
144
20:00
Fewer than 200 measured departures
—
32
32
21:00
77.5%
23.3 min
382
382
22:00
Fewer than 200 measured departures
—
86
86
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
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
11.95.90.0
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
5372690
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
87.7%
5.1 min
535
537
Tuesday
90.3%
1.8 min
513
515
Wednesday
89.3%
4.1 min
524
526
Thursday
88.6%
3.5 min
528
528
Friday
86.1%
8.4 min
526
527
Saturday
85.1%
11.9 min
423
425
Sunday
85.8%
10.1 min
520
521
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
16.07.5-1.0
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
4002000
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
92.6%
-1.0 min
337
341
Feb
89.0%
2.6 min
291
291
Mar
88.8%
6.2 min
295
295
Apr
94.3%
0.1 min
300
300
May
87.7%
6.6 min
318
318
Jun
82.0%
12.3 min
339
339
Jul
76.5%
16.0 min
358
358
Aug
Fewer than 200 measured departures
—
174
174
Sep
Fewer than 200 measured departures
—
171
171
Oct
89.5%
7.8 min
276
276
Nov
92.4%
-0.3 min
394
400
Dec
81.7%
13.2 min
316
316
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 time87.4%3,127
Delayed >15 min12.3%442
Cancelled0.3%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.