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 delay10:00–11:002.9min · 211 recorded · 210 measured
Gap to highest-delay hour15.5min10:00 ↔ 17:00
Recorded flights4,597DEN–XNA
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
18.49.20.0
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
1,3126560
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
—
72
72
06:00
No observations
—
—
—
07:00
No observations
—
—
—
08:00
Fewer than 200 measured departures
—
149
149
09:00
86.2%
6.9 min
1,017
1,026
10:00
86.2%
2.9 min
210
211
11:00
81.8%
8.0 min
253
255
12:00
Fewer than 200 measured departures
—
26
26
13:00
86.3%
6.5 min
1,094
1,102
14:00
Fewer than 200 measured departures
—
93
93
15:00
Fewer than 200 measured departures
—
48
48
16:00
Fewer than 200 measured departures
—
99
100
17:00
77.5%
18.4 min
1,305
1,312
18:00
Fewer than 200 measured departures
—
1
2
19:00
Fewer than 200 measured departures
—
83
84
20:00
Fewer than 200 measured departures
—
108
109
21:00
Fewer than 200 measured departures
—
8
8
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
15.07.50.0
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
6973490
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
80.5%
15.0 min
696
697
Tuesday
84.1%
8.1 min
608
616
Wednesday
81.1%
11.2 min
629
632
Thursday
81.7%
13.6 min
649
651
Friday
83.5%
10.4 min
686
695
Saturday
84.5%
7.2 min
638
644
Sunday
82.6%
10.5 min
660
662
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
18.79.40.0
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
81.8%
13.7 min
380
386
Feb
82.1%
9.8 min
329
336
Mar
83.4%
9.6 min
422
424
Apr
86.9%
4.4 min
388
390
May
82.7%
17.8 min
446
447
Jun
75.7%
18.7 min
477
478
Jul
76.4%
16.7 min
488
490
Aug
76.5%
10.2 min
213
216
Sep
81.8%
9.5 min
214
214
Oct
85.6%
6.3 min
382
382
Nov
87.9%
5.8 min
421
426
Dec
88.7%
4.0 min
406
408
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 time82.0%3,768
Delayed >15 min17.4%798
Cancelled0.7%31
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.