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 delay08:00–09:003.7min · 358 recorded · 356 measured
Gap to highest-delay hour29.5min08:00 ↔ 07:00
Recorded flights4,019ALB–CLT
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
33.216.60.0
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
5962980
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
93.3%
3.8 min
284
291
06:00
Fewer than 200 measured departures
—
107
110
07:00
89.3%
33.2 min
244
252
08:00
88.8%
3.7 min
356
358
09:00
Fewer than 200 measured departures
—
82
86
10:00
Fewer than 200 measured departures
—
85
85
11:00
84.2%
6.8 min
588
596
12:00
Fewer than 200 measured departures
—
41
41
13:00
78.7%
12.7 min
268
271
14:00
82.3%
9.8 min
468
470
15:00
Fewer than 200 measured departures
—
91
93
16:00
Fewer than 200 measured departures
—
174
174
17:00
72.9%
33.0 min
395
397
18:00
Fewer than 200 measured departures
—
65
66
19:00
Fewer than 200 measured departures
—
169
171
20:00
68.4%
24.6 min
332
340
21:00
Fewer than 200 measured departures
—
42
44
22:00
Fewer than 200 measured departures
—
170
174
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
21.710.90.0
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
6093050
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
78.0%
21.7 min
576
584
Tuesday
80.6%
12.3 min
551
555
Wednesday
85.5%
15.3 min
546
551
Thursday
81.0%
20.6 min
568
573
Friday
78.9%
11.5 min
565
572
Saturday
81.2%
9.6 min
559
575
Sunday
79.0%
21.4 min
596
609
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
32.716.40.0
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
3881940
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
75.3%
15.8 min
324
345
Feb
78.9%
30.7 min
318
328
Mar
79.5%
18.6 min
361
370
Apr
87.8%
3.4 min
360
360
May
85.1%
9.2 min
370
372
Jun
73.4%
32.7 min
383
388
Jul
73.9%
22.7 min
375
380
Aug
78.8%
22.8 min
212
212
Sep
Fewer than 200 measured departures
—
196
196
Oct
86.6%
5.3 min
366
366
Nov
85.8%
10.1 min
346
350
Dec
77.4%
13.1 min
350
352
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 time79.4%3,191
Delayed >15 min19.2%770
Cancelled1.4%58
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.