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 delay13:00–14:004.8min · 499 recorded · 492 measured
Gap to highest-delay hour30.2min13:00 ↔ 16:00
Recorded flights5,117DEN–FAR
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
35.017.50.0
00:0003:0006:0009:0012:0015:0018:0021:00
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
1,0635320
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
88.0%
6.8 min
250
250
06:00
Fewer than 200 measured departures
—
1
1
07:00
Fewer than 200 measured departures
—
5
5
08:00
Fewer than 200 measured departures
—
98
98
09:00
81.2%
15.9 min
1,043
1,050
10:00
80.0%
10.9 min
335
336
11:00
67.7%
26.8 min
631
639
12:00
Fewer than 200 measured departures
—
76
77
13:00
87.6%
4.8 min
492
499
14:00
72.7%
25.3 min
381
382
15:00
Fewer than 200 measured departures
—
62
64
16:00
65.5%
35.0 min
246
249
17:00
73.8%
25.6 min
1,053
1,063
18:00
Fewer than 200 measured departures
—
75
75
19:00
Fewer than 200 measured departures
—
60
62
20:00
62.8%
28.3 min
261
265
21:00
Fewer than 200 measured departures
—
1
2
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
22.911.50.0
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
7983990
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
76.4%
18.9 min
791
796
Tuesday
77.9%
18.9 min
638
645
Wednesday
76.5%
18.1 min
706
711
Thursday
76.5%
15.0 min
716
723
Friday
74.6%
22.7 min
790
798
Saturday
76.7%
22.9 min
670
678
Sunday
74.8%
18.9 min
759
766
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
33.516.70.0
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
5722860
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
71.7%
25.8 min
410
418
Feb
77.1%
20.4 min
380
383
Mar
74.6%
16.3 min
440
444
Apr
80.1%
13.4 min
407
415
May
77.1%
20.7 min
501
501
Jun
71.7%
23.5 min
551
554
Jul
72.7%
24.9 min
571
572
Aug
69.8%
20.5 min
288
292
Sep
88.4%
6.0 min
266
266
Oct
84.1%
5.3 min
427
427
Nov
78.2%
14.8 min
417
428
Dec
73.3%
33.5 min
412
417
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 time75.4%3,860
Delayed >15 min23.6%1,210
Cancelled0.9%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.