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 delay06:00–07:00-1.4min · 380 recorded · 380 measured
Gap to highest-delay hour33.0min06:00 ↔ 20:00
Recorded flights5,196MCO–SFO
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
31.615.1-1.4
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
1,0755380
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
No observations
—
—
—
06:00
94.0%
-1.4 min
380
380
07:00
94.1%
0.3 min
762
767
08:00
91.3%
3.8 min
1,072
1,075
09:00
Fewer than 200 measured departures
—
137
137
10:00
Fewer than 200 measured departures
—
125
125
11:00
Fewer than 200 measured departures
—
2
2
12:00
Fewer than 200 measured departures
—
26
26
13:00
83.9%
6.7 min
305
305
14:00
Fewer than 200 measured departures
—
119
119
15:00
No observations
—
—
—
16:00
Fewer than 200 measured departures
—
103
104
17:00
Fewer than 200 measured departures
—
107
107
18:00
74.8%
15.1 min
377
379
19:00
66.3%
20.3 min
588
589
20:00
58.9%
31.6 min
236
242
21:00
79.2%
11.8 min
298
300
22:00
Fewer than 200 measured departures
—
165
165
23:00
81.5%
9.6 min
373
374
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
14.87.40.0
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
7793900
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
80.3%
14.8 min
734
743
Tuesday
86.8%
6.2 min
665
666
Wednesday
88.5%
3.2 min
705
705
Thursday
80.8%
8.7 min
762
763
Friday
80.7%
8.7 min
775
776
Saturday
80.6%
11.4 min
764
764
Sunday
77.3%
13.7 min
770
779
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
21.710.90.0
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
5812910
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
81.7%
9.5 min
514
514
Feb
85.7%
6.9 min
455
457
Mar
86.5%
8.1 min
526
529
Apr
84.7%
7.0 min
561
561
May
78.4%
9.1 min
509
512
Jun
77.0%
12.7 min
396
396
Jul
73.5%
21.7 min
400
406
Aug
76.4%
17.7 min
220
222
Sep
Fewer than 200 measured departures
—
188
188
Oct
87.7%
5.2 min
325
327
Nov
85.1%
6.1 min
502
503
Dec
77.7%
11.7 min
579
581
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 time81.6%4,242
Delayed >15 min18.0%933
Cancelled0.4%21
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.