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 delay07:00–08:000.3min · 544 recorded · 540 measured
Gap to highest-delay hour28.5min07:00 ↔ 19:00
Recorded flights4,411LAS–OKC
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
28.714.40.0
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
5442720
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
Fewer than 200 measured departures
—
11
11
06:00
95.5%
0.6 min
336
338
07:00
93.3%
0.3 min
540
544
08:00
91.8%
2.1 min
441
445
09:00
Fewer than 200 measured departures
—
86
86
10:00
Fewer than 200 measured departures
—
56
56
11:00
Fewer than 200 measured departures
—
135
136
12:00
84.4%
5.2 min
327
328
13:00
76.1%
11.3 min
410
415
14:00
64.0%
19.5 min
278
278
15:00
Fewer than 200 measured departures
—
199
200
16:00
61.8%
21.6 min
212
212
17:00
Fewer than 200 measured departures
—
177
179
18:00
76.8%
9.5 min
357
358
19:00
57.6%
28.7 min
370
372
20:00
57.6%
21.0 min
314
316
21:00
Fewer than 200 measured departures
—
137
137
22:00
No observations
—
—
—
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
15.77.80.0
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
7163580
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
78.1%
10.1 min
689
692
Tuesday
82.0%
8.9 min
550
553
Wednesday
81.4%
7.2 min
574
574
Thursday
69.6%
15.7 min
668
670
Friday
74.0%
13.8 min
685
692
Saturday
81.1%
7.3 min
509
514
Sunday
73.4%
15.3 min
711
716
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
22.411.20.0
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
4482240
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
86.7%
3.5 min
382
394
Feb
84.7%
6.2 min
366
370
Mar
77.3%
8.2 min
431
434
Apr
77.4%
9.1 min
394
396
May
68.1%
14.5 min
436
438
Jun
67.4%
22.3 min
448
448
Jul
69.8%
22.4 min
441
442
Aug
Fewer than 200 measured departures
—
186
186
Sep
Fewer than 200 measured departures
—
188
188
Oct
76.7%
11.2 min
330
330
Nov
81.0%
7.4 min
378
379
Dec
81.3%
6.4 min
406
406
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 time76.2%3,363
Delayed >15 min23.2%1,023
Cancelled0.6%25
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.