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 delay13:00–14:007.2min · 317 recorded · 315 measured
Gap to highest-delay hour35.9min13:00 ↔ 17:00
Recorded flights3,851DEN–MOT
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
43.221.60.0
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
7663830
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
—
190
190
06:00
No observations
—
—
—
07:00
87.2%
17.4 min
758
766
08:00
No observations
—
—
—
09:00
Fewer than 200 measured departures
—
72
72
10:00
Fewer than 200 measured departures
—
55
55
11:00
80.6%
9.5 min
680
685
12:00
No observations
—
—
—
13:00
83.2%
7.2 min
315
317
14:00
Fewer than 200 measured departures
—
99
103
15:00
73.8%
25.7 min
596
604
16:00
Fewer than 200 measured departures
—
35
35
17:00
54.6%
43.2 min
205
213
18:00
Fewer than 200 measured departures
—
131
135
19:00
Fewer than 200 measured departures
—
97
97
20:00
75.1%
24.2 min
550
558
21:00
Fewer than 200 measured departures
—
21
21
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
23.211.60.0
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
5662830
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
77.5%
15.4 min
550
560
Tuesday
81.0%
17.1 min
547
558
Wednesday
81.8%
14.6 min
544
551
Thursday
78.8%
22.7 min
556
556
Friday
78.0%
16.6 min
555
566
Saturday
78.0%
17.4 min
499
502
Sunday
78.7%
23.2 min
553
558
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
35.117.50.0
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
5462730
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
75.6%
25.3 min
250
258
Feb
73.7%
22.2 min
217
222
Mar
77.9%
35.1 min
244
248
Apr
83.4%
7.4 min
241
241
May
78.4%
20.5 min
425
427
Jun
75.9%
22.5 min
530
532
Jul
78.0%
15.6 min
541
546
Aug
71.0%
26.3 min
297
300
Sep
84.3%
6.3 min
261
261
Oct
89.2%
1.9 min
258
258
Nov
89.1%
6.5 min
274
286
Dec
77.8%
25.4 min
266
272
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%3,009
Delayed >15 min20.6%795
Cancelled1.2%47
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.