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 delay05:00–06:00-3.1min · 233 recorded · 232 measured
Gap to highest-delay hour27.8min05:00 ↔ 20:00
Recorded flights4,748LAS–TUS
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
24.710.8-3.1
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
4522260
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
99.1%
-3.1 min
232
233
06:00
97.5%
1.4 min
200
201
07:00
95.1%
-0.9 min
452
452
08:00
91.1%
0.9 min
303
303
09:00
Fewer than 200 measured departures
—
168
169
10:00
88.0%
6.1 min
309
309
11:00
81.1%
7.8 min
217
217
12:00
79.2%
13.0 min
260
261
13:00
71.0%
11.3 min
231
231
14:00
74.1%
17.8 min
293
295
15:00
70.8%
14.3 min
240
240
16:00
64.5%
18.6 min
341
342
17:00
67.1%
16.7 min
280
280
18:00
67.8%
15.5 min
283
283
19:00
69.3%
17.4 min
293
294
20:00
56.0%
24.7 min
252
254
21:00
Fewer than 200 measured departures
—
196
196
22:00
Fewer than 200 measured departures
—
185
188
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
17.38.60.0
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
7603800
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
73.5%
12.0 min
736
738
Tuesday
82.2%
7.3 min
653
653
Wednesday
84.1%
5.8 min
634
634
Thursday
72.4%
14.3 min
739
742
Friday
71.7%
17.3 min
755
760
Saturday
84.1%
5.7 min
484
486
Sunday
76.0%
13.7 min
734
735
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
20.510.20.0
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
4902450
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
81.9%
7.6 min
426
428
Feb
77.5%
8.6 min
418
420
Mar
76.6%
10.2 min
487
489
Apr
76.0%
11.5 min
438
438
May
75.1%
15.0 min
438
438
Jun
66.9%
20.5 min
369
369
Jul
69.7%
16.6 min
373
374
Aug
77.8%
8.9 min
216
216
Sep
73.4%
18.5 min
218
222
Oct
79.8%
8.8 min
381
382
Nov
85.0%
6.3 min
481
482
Dec
80.8%
8.4 min
490
490
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 time76.9%3,652
Delayed >15 min22.8%1,083
Cancelled0.3%13
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.