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 delay08:00–09:00-0.9min · 565 recorded · 563 measured
Gap to highest-delay hour23.3min08:00 ↔ 21:00
Recorded flights4,880ELP–LAS
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
22.310.7-0.9
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
5652830
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
—
93
94
06:00
95.7%
-0.2 min
346
348
07:00
93.9%
0.1 min
344
344
08:00
94.0%
-0.9 min
563
565
09:00
Fewer than 200 measured departures
—
115
115
10:00
Fewer than 200 measured departures
—
90
90
11:00
82.4%
7.5 min
278
279
12:00
80.2%
8.3 min
283
284
13:00
Fewer than 200 measured departures
—
137
139
14:00
71.8%
14.0 min
309
312
15:00
67.1%
17.6 min
307
307
16:00
71.4%
14.7 min
231
234
17:00
70.7%
19.2 min
307
309
18:00
81.9%
9.0 min
293
295
19:00
67.9%
17.3 min
299
301
20:00
66.9%
19.5 min
496
499
21:00
57.5%
22.3 min
273
276
22:00
Fewer than 200 measured departures
—
87
89
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
15.27.60.0
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
7853930
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
76.6%
15.2 min
753
758
Tuesday
81.3%
7.4 min
576
578
Wednesday
84.5%
4.2 min
595
596
Thursday
74.3%
11.8 min
723
737
Friday
75.2%
13.2 min
755
757
Saturday
85.4%
5.6 min
669
669
Sunday
75.3%
13.5 min
780
785
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
19.79.80.0
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
4982490
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
84.4%
4.9 min
392
392
Feb
85.6%
5.4 min
362
367
Mar
76.9%
9.7 min
463
470
Apr
76.3%
12.3 min
447
448
May
76.1%
10.6 min
468
474
Jun
70.4%
15.6 min
450
454
Jul
69.2%
19.7 min
471
472
Aug
80.5%
8.8 min
205
206
Sep
82.8%
6.6 min
204
204
Oct
84.2%
5.6 min
398
398
Nov
84.2%
6.3 min
493
497
Dec
78.3%
14.8 min
498
498
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 time78.1%3,811
Delayed >15 min21.3%1,040
Cancelled0.6%29
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.