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 delay05:00–06:004.3min · 698 recorded · 698 measured
Gap to highest-delay hour15.6min05:00 ↔ 19:00
Recorded flights4,028DEN–EUG
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
19.99.90.0
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
8594300
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
92.8%
4.3 min
698
698
06:00
Fewer than 200 measured departures
—
131
131
07:00
Fewer than 200 measured departures
—
52
52
08:00
Fewer than 200 measured departures
—
86
86
09:00
Fewer than 200 measured departures
—
22
22
10:00
Fewer than 200 measured departures
—
28
28
11:00
83.4%
8.2 min
699
700
12:00
76.3%
13.4 min
236
237
13:00
79.3%
15.1 min
856
859
14:00
Fewer than 200 measured departures
—
136
136
15:00
Fewer than 200 measured departures
—
124
125
16:00
Fewer than 200 measured departures
—
119
124
17:00
No observations
—
—
—
18:00
Fewer than 200 measured departures
—
1
1
19:00
70.7%
19.9 min
639
639
20:00
Fewer than 200 measured departures
—
123
123
21:00
Fewer than 200 measured departures
—
66
67
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
19.09.50.0
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
5872940
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
77.1%
12.3 min
580
582
Tuesday
80.7%
11.9 min
570
572
Wednesday
77.1%
14.6 min
567
568
Thursday
77.3%
19.0 min
581
581
Friday
74.0%
14.0 min
585
587
Saturday
79.6%
11.1 min
553
556
Sunday
77.6%
13.3 min
580
582
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
19.69.80.0
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
5042520
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
80.6%
7.8 min
268
268
Feb
81.8%
14.8 min
258
258
Mar
82.5%
8.8 min
349
351
Apr
79.8%
13.4 min
352
352
May
73.6%
17.4 min
420
422
Jun
66.4%
19.1 min
479
480
Jul
70.1%
19.6 min
502
504
Aug
72.9%
14.9 min
240
242
Sep
85.3%
7.1 min
231
232
Oct
89.8%
6.6 min
315
315
Nov
86.0%
7.8 min
293
294
Dec
75.7%
18.7 min
309
310
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 time77.4%3,116
Delayed >15 min22.3%900
Cancelled0.3%12
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.